CN114597676A

CN114597676A - Array arrangement method and device of antenna array, computer equipment and readable storage medium

Info

Publication number: CN114597676A
Application number: CN202011437532.3A
Authority: CN
Inventors: 钱通
Original assignee: Hangzhou Hikvision Digital Technology Co Ltd
Current assignee: Hangzhou Hikvision Digital Technology Co Ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2022-06-07

Abstract

The embodiment of the application discloses an array arrangement method and device of an antenna array, computer equipment and a readable storage medium, and belongs to the technical field of antennas. The method comprises the following steps: and when the final sparse array arrangement position of each first antenna in the first antenna set is determined, the minimum redundant array arrangement position and the antenna panel size of each first antenna are considered. The final sparse array arrangement position of each first antenna, the minimum redundant array arrangement position of each second antenna and the size of the antenna panel are considered when the final sparse array arrangement position of each second antenna in the second antenna set is determined, so that the antenna aperture of each first antenna is close to the antenna aperture of each second antenna, in addition, the final sparse array arrangement position of each first antenna is also considered when the final sparse array arrangement position of each second antenna is determined, and therefore the antenna aperture of the antenna array with the larger number of antennas is achieved through the antenna array with the smaller number of antennas.

Description

Array arrangement method and device of antenna array, computer equipment and readable storage medium

Technical Field

The present invention relates to the field of antenna technologies, and in particular, to an array arrangement method and apparatus for an antenna array, a computer device, and a readable storage medium.

Background

With the development of scientific technology, when a target object is detected by using a radar, the requirement on the angular resolution of radar detection is higher and higher. Multiple antennas are deployed on the radar, and the angular resolution of radar detection is determined by the antenna aperture. The antenna aperture refers to the distance between any two of the plurality of antennas, with the greater the antenna aperture the higher the angular resolution. When different arrangement methods are adopted for the antennas on the radar, different antenna arrays can be formed. Different antenna arrays have different antenna apertures, so that a better array arrangement method is required to obtain a larger antenna aperture.

In the related art, the most commonly used antenna array is a MIMO (multiple-input multiple-output) sparse array. A MIMO sparse array is a combination of receive and transmit antennas to form a virtual antenna array. The virtual antenna array is formed by multiple receiving antennas using a distance difference between the multiple transmitting antennas. For example, a dual-transmit-four-receive antenna array may be equivalent to an eight-transmit-receive antenna array. Proper distance difference is introduced between the two transmitting antennas, and the four receiving antennas respectively receive echo signals of signals transmitted by the two transmitting antennas, so that a virtual array is formed, wherein the virtual array is virtual eight receiving antennas. That is, four receiving antennas are equivalent to a virtual eight receiving antennas, so that a smaller number of antennas are used to obtain the same effect.

However, the spacing between the two antennas with the farthest distance in the receiving antennas and the spacing between the two antennas with the farthest distance in the transmitting antennas obtained by the MIMO sparse array have a large difference, that is, the difference between the maximum aperture of the receiving antennas and the maximum aperture of the transmitting antennas is large, so that the utilization rate of the antenna panel is low. That is, in the related art, in the process of obtaining the effect of a large number of antennas by an array mode of a small number of antennas, the utilization rate of the antenna panel is low.

Disclosure of Invention

The embodiment of the application provides an array arrangement method and device of an antenna array, computer equipment and a readable storage medium, which can enable the difference between the maximum antenna aperture of a receiving antenna and the maximum antenna aperture of a transmitting antenna to be small, and therefore the utilization rate of an antenna panel is improved. The technical scheme is as follows:

in one aspect, a method for arranging an antenna array is provided, where the method includes:

acquiring a minimum redundant array arrangement position of each first antenna in a first antenna set and a minimum redundant array arrangement position of each second antenna in a second antenna set based on a minimum redundant array arrangement algorithm and a wavelength corresponding to an antenna working frequency, wherein the first antenna is one of a transmitting antenna and a receiving antenna, and the second antenna is the other one of the transmitting antenna and the receiving antenna except the first antenna;

determining a final sparse array arrangement position of each first antenna in the first antenna set based on the minimum redundant array arrangement position and the antenna panel size of each first antenna in the first antenna set;

and determining the final sparse array position of each second antenna in the second antenna set based on the final sparse array position of each first antenna in the first antenna set, the minimum redundant array position of each second antenna in the second antenna set and the size of the antenna panel.

Optionally, the determining a final sparsely-arranged position of each first antenna in the first antenna set based on the minimum redundant array arrangement position and the antenna panel size of each first antenna in the first antenna set includes:

for a target first antenna in the first antenna set, determining a first magnification factor based on the antenna panel size and a distance between two first antennas that are farthest away when each first antenna is at a respective minimum redundant array arrangement position, wherein the target first antenna is any one first antenna in the first antenna set, and the first magnification factor indicates a magnification of a final sparse arrangement position of the target first antenna relative to the minimum redundant array arrangement position;

and determining the final sparse array arrangement position of the target first antenna based on the minimum redundant array arrangement position of the target first antenna and the first multiplying factor.

Optionally, the determining the final sparsely-arranged position of each second antenna in the second antenna set based on the final sparsely-arranged position of each first antenna in the first antenna set, the minimum redundant array arrangement position of each second antenna in the second antenna set, and the size of the antenna panel includes:

determining a plurality of candidate position sets based on the minimum redundant array arrangement position of each second antenna in the second antenna set and the size of the antenna panel, wherein each candidate position set corresponds to one candidate sparse arrangement position of each second antenna in the second antenna set;

determining virtual continuous lengths respectively corresponding to the plurality of candidate position sets based on the final sparsely populated position of each first antenna in the first antenna set, where the virtual continuous lengths are: after each second antenna in the second antenna set is arrayed based on the candidate sparse array position of each second antenna in the corresponding candidate position set and the final sparse array position of each first antenna, the continuous length of a virtual array formed by each second antenna and each first antenna is obtained;

and determining each candidate sparsely-arranged position in the candidate position set corresponding to the maximum virtual continuous length as a final sparsely-arranged position of each second antenna in the second antenna set.

Optionally, the determining a plurality of candidate position sets based on the minimum redundant array arrangement position and the antenna panel size of each second antenna in the second antenna set includes:

determining a multiplying power range based on the size of the antenna panel and the distance between two second antennas which are farthest away when each second antenna is at the minimum redundant array arrangement position;

determining a plurality of second magnification factors based on the magnification range, the second magnification factors indicating a magnification of a final sparsely populated position of the second antenna relative to a minimum redundant array populated position;

determining the plurality of candidate position sets based on the plurality of second multiplying factors and the minimum redundant array arrangement position of each second antenna in the second antenna set, wherein the plurality of candidate position sets respectively correspond to the plurality of second multiplying factors.

Optionally, before determining the final sparsely-arranged position of each first antenna in the first antenna set based on the minimum redundant array arrangement position and the antenna panel size of each first antenna in the first antenna set, the method further includes:

if the first antennas and the second antennas are arranged according to the minimum redundant array arrangement position of each first antenna in the first antenna set and the minimum redundant array arrangement position of each second antenna in the second antenna set, and the distance between two antennas which are farthest away in a virtual array formed by each second antenna and each first antenna exceeds the size of the antenna panel, executing the step of determining the final sparse arrangement position of each first antenna in the first antenna set based on the minimum redundant array arrangement position and the size of the antenna panel of each first antenna in the first antenna set;

and if the first antennas and the second antennas are arranged according to the minimum redundant array arrangement position of each first antenna in the first antenna set and the minimum redundant array arrangement position of each second antenna in the second antenna set, and the distance between two antennas which are farthest away in a virtual array formed by each second antenna and each first antenna does not exceed the size of the antenna panel, taking the minimum redundant array arrangement position of each first antenna in the first antenna set as the final sparse arrangement position of the corresponding first antenna, and taking the minimum redundant array arrangement position of each second antenna in the second antenna set as the final sparse arrangement position of the corresponding second antenna.

In another aspect, an antenna array is provided, the antenna array including a first antenna set and a second antenna set, the first antenna set including one or more first antennas, the second antenna set including one or more second antennas, the first antennas being one of transmit antennas and receive antennas, the second antennas being the other of the transmit antennas and the receive antennas except for the first antennas;

the first antennas in the first antenna set are arrayed according to the final sparse array position, and the second antennas in the second antenna set are arrayed according to the final sparse array position;

the final sparse array arrangement position of each first antenna in the first antenna set is determined based on the minimum redundant array arrangement position of each first antenna in the first antenna set and the size of the antenna panel;

the final sparse array arrangement position of each second antenna in the second antenna set is determined based on the final sparse array arrangement position of each first antenna in the first antenna set, the minimum redundant array arrangement position of each second antenna in the second antenna set and the size of the antenna panel;

the minimum redundant array arrangement position of each first antenna in the first antenna set and the minimum redundant array arrangement position of each second antenna in the second antenna set are determined based on a minimum redundant array arrangement algorithm and a wavelength corresponding to the working frequency of the antenna.

Alternatively,

for a target first antenna in the first antenna set, a final sparsely populated position of the target first antenna is determined based on a minimum redundant array populated position of the target first antenna and a first magnification factor, the target first antenna being any first antenna in the first antenna set, the first magnification factor indicating a magnification of the final sparsely populated position of the target first antenna relative to the minimum redundant array populated position;

wherein the first multiplying factor is determined based on the antenna panel size and the distance between two first antennas which are farthest away when each first antenna is at the respective minimum redundant array arrangement position.

Alternatively,

the final sparsely populated position of each second antenna in the second antenna set is each candidate sparsely populated position in a candidate position set corresponding to a maximum virtual continuous length in a plurality of candidate position sets, each candidate position set corresponds to one candidate sparsely populated position of each second antenna in the second antenna set, and the virtual continuous length is: after each second antenna in the second antenna set is arrayed based on the candidate sparse array position of each second antenna in the corresponding candidate position set and the final sparse array position of each first antenna, the continuous length of a virtual array formed by each second antenna and each first antenna is obtained;

the virtual continuous lengths corresponding to the candidate position sets are determined based on the final sparse array arrangement position of each first antenna in the first antenna set, and the candidate position sets are determined based on the minimum redundant array arrangement position of each second antenna in the second antenna set and the size of the antenna panel.

Alternatively,

the plurality of candidate position sets are determined based on a plurality of second magnification factors and minimum redundant array arrangement positions of the second antennas in the second antenna sets, the plurality of candidate position sets respectively correspond to the plurality of second magnification factors, and the second magnification factors indicate the amplification factors of the final sparse arrangement positions of the second antennas relative to the minimum redundant array arrangement positions;

wherein the plurality of second magnification factors are determined based on a magnification range determined based on the antenna panel size and a spacing between two second antennas that are farthest apart at a minimum redundant array arrangement position of the respective second antennas.

Alternatively,

if after the first antennas and the second antennas are arranged according to the minimum redundant array arrangement position of each first antenna in the first antenna set and the minimum redundant array arrangement position of each second antenna in the second antenna set, the distance between two antennas which are farthest away in a virtual array formed by each second antenna and each first antenna exceeds the size of the antenna panel, the final sparse arrangement position of each first antenna in the first antenna set is determined based on the minimum redundant array arrangement position of each first antenna in the first antenna set and the size of the antenna panel;

and if the first antennas and the second antennas are arranged according to the minimum redundant array arrangement position of each first antenna in the first antenna set and the minimum redundant array arrangement position of each second antenna in the second antenna set, and the distance between two antennas which are farthest away in a virtual array formed by each second antenna and each first antenna does not exceed the size of the antenna panel, the final sparse arrangement position of the first antenna is the minimum redundant array arrangement position of each first antenna in the first antenna set, and the final sparse arrangement position of the second antenna is the minimum redundant array arrangement position of each second antenna in the second antenna set.

In another aspect, an array arrangement apparatus for an antenna array is provided, the apparatus including:

an obtaining module, configured to obtain a minimum redundant array arrangement position of each first antenna in a first antenna set and a minimum redundant array arrangement position of each second antenna in a second antenna set based on a minimum redundant array arrangement algorithm and a wavelength corresponding to an antenna operating frequency, where the first antenna is one of a transmitting antenna and a receiving antenna, and the second antenna is the other one of the transmitting antenna and the receiving antenna except the first antenna;

a first determining module, configured to determine a final sparse array arrangement position of each first antenna in the first antenna set based on a minimum redundant array arrangement position and an antenna panel size of each first antenna in the first antenna set;

a second determining module, configured to determine a final sparse array position of each second antenna in the second antenna set based on the final sparse array position of each first antenna in the first antenna set, the minimum redundant array position of each second antenna in the second antenna set, and the size of the antenna panel.

Optionally, the first determining module includes:

a determining unit, configured to determine, for a target first antenna in the first antenna set, a first magnification factor based on the antenna panel size and a distance between two first antennas that are farthest away when the respective first antennas are at respective minimum redundant array arrangement positions, where the target first antenna is any one of the first antennas in the first antenna set, and the first magnification factor indicates a magnification of a final sparsely arranged position of the target first antenna relative to the minimum redundant array arrangement position;

the determining unit is further configured to determine a final sparse array arrangement position of the target first antenna based on the minimum redundant array arrangement position of the target first antenna and the first magnification factor.

Optionally, the second determining module includes:

a determining unit, configured to determine multiple candidate position sets based on the minimum redundant array arrangement position of each second antenna in the second antenna set and the size of the antenna panel, where each candidate position set corresponds to one candidate sparse arrangement position of each second antenna in the second antenna set;

the determining unit is further configured to determine, based on the final sparsely populated position of each first antenna in the first antenna set, virtual continuous lengths corresponding to the plurality of candidate position sets, respectively, where the virtual continuous lengths are: after each second antenna in the second antenna set is arrayed based on the candidate sparse array position of each second antenna in the corresponding candidate position set and the final sparse array position of each first antenna, the continuous length of a virtual array formed by each second antenna and each first antenna is obtained;

the determining unit is further configured to determine each candidate sparsely-arranged position in the candidate position set corresponding to the largest virtual continuous length as a final sparsely-arranged position of each second antenna in the second antenna set.

Optionally, the determining unit is configured to:

Optionally, the first determining module is further configured to:

In another aspect, a computer device is provided, the computer device comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to execute the above-mentioned array arrangement method of the antenna array.

In another aspect, a computer-readable storage medium is provided, where instructions are stored on the computer-readable storage medium, and when executed by a processor, the instructions implement the method for arranging the antenna array described above.

The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:

in the embodiment of the application, when the final sparsely-arranged position of each first antenna in the first antenna set is determined, the minimum redundant array position and the antenna panel size of each first antenna in the first antenna set are considered, that is, under the condition that the antenna panel size restricts the final sparsely-arranged position of each first antenna, the arrangement length of each first antenna is obtained to be close to the antenna panel size. When the final sparse arrangement position of each second antenna in the second antenna set is determined, the final sparse arrangement position of each first antenna in the first antenna set, the minimum redundant array position of each second antenna in the second antenna set and the size of the antenna panel are considered, that is, under the condition that the size of the antenna panel is restricted to the final sparse arrangement position of each second antenna, the arrangement length of each second antenna is obtained to be close to the size of the antenna panel. Therefore, the arrangement length of each first antenna and the arrangement length of each second antenna are close to the size of the antenna panel, so that the maximum antenna aperture of each first antenna is close to the maximum antenna aperture of each second antenna as much as possible, the space of the antenna panel is fully utilized by the method provided by the embodiment of the application, and the utilization rate of the antenna panel is further improved. In addition, the final sparse array arrangement position of each first antenna is also considered when the final sparse array arrangement position of each second antenna is determined, so that the antenna aperture of the antenna array with a large number of antennas is realized through the antenna array with a small number of antennas, namely, on the basis of fully utilizing the space of the antenna panel, the antenna array with a small number of antennas obtains a large antenna aperture.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an antenna system according to an embodiment of the present application;

fig. 2 is a schematic mechanism diagram of another antenna system provided in the embodiment of the present application;

fig. 3 is a flowchart of an array arrangement method of an antenna array according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a dual-transmit-four-receive antenna system according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an antenna system with eight transceivers according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of another antenna array according to an embodiment of the present application;

fig. 7 is a top view of an antenna panel provided in an embodiment of the present application;

fig. 8 is a schematic diagram of an antenna aperture arrangement of a virtual array according to an embodiment of the present application;

fig. 9 is a schematic diagram of a virtual array of discontinuous antenna aperture arrangements provided in an embodiment of the present application;

fig. 10 is a schematic structural diagram of an arrangement device of an antenna array according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a server according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application more clear, the embodiments of the present application will be further described in detail with reference to the accompanying drawings.

Before explaining the embodiments of the present application in detail, an application scenario in the embodiments of the present application will be described.

The array arrangement method of the antenna array provided by the embodiment of the application can be applied to any scene for deploying the antenna, for example, a scene for deploying the antenna on the radar, and the antenna deployed on the radar can be used for detecting a target object. Therefore, the radar can be applied to the fields of tunnel monitoring, vehicle-mounted and low-altitude target detection and the like. The array arrangement method of the antenna array provided by the embodiment of the application can utilize the space of the antenna panel to the maximum extent so as to obtain larger angular resolution.

Fig. 1 is a schematic structural diagram of an antenna system provided in an embodiment of the present application, and referring to fig. 1, the schematic structural diagram of the antenna system includes a plurality of first antennas 110, a plurality of second antennas 120, and an antenna panel 130. The plurality of first antennas 110 and the plurality of second antennas 120 are disposed on the antenna panel 130.

In one possible implementation, the first antenna 110 is a transmitting antenna and the second antenna 120 is a receiving antenna. Then, the second antenna 120 receives an echo signal of the signal transmitted by the first antenna 110. The echo signal is a signal after the signal is reflected by a target object. In fig. 1, the first antenna 110 is taken as a transmitting antenna, and the second antenna 120 is taken as a receiving antenna, wherein the transmitting antenna is indicated by o and the receiving antenna is indicated by x in fig. 1.

Optionally, the first antenna 110 is a receiving antenna, and the second antenna 120 is a transmitting antenna, so the first antenna 110 receives an echo signal of a signal transmitted by the second antenna 120.

In addition, the first antenna 110 may also be referred to as a first antenna element, and similarly, the second antenna 120 may also be referred to as a second antenna element, which is not specifically limited in this embodiment of the present application.

The different arrangement of the first antennas 110 and the second antennas 120 form different antenna arrays. The number of antennas in the antenna array may be referred to as the number of antennas, or may be referred to as the number of array elements. The number of the first antennas 110 in the antenna array may be referred to as a first antenna number, and the number of the second antennas 120 in the antenna array is referred to as a second antenna number.

The spacing between any two of the plurality of first antennas 110 is referred to as the antenna aperture of the plurality of first antennas 110. The spacing between any two of the plurality of second antennas 120 is referred to as the antenna aperture of the plurality of second antennas 120.

It should be noted that when the number of the first antenna or the second antenna is greater than 2, the plurality of first antennas 110 or the plurality of second antennas 120 can form a plurality of antenna apertures. For convenience of the following description, an array formed by the plurality of antenna apertures in order from small to large is referred to as an aperture array, and the largest antenna aperture in the aperture array is referred to as a first aperture. And when the antenna apertures in the aperture array are the antenna apertures which are continuously and uniformly distributed, taking the first aperture as the continuous length. When two antenna apertures which are discontinuously and uniformly distributed appear in the aperture array, the largest antenna aperture in the antenna apertures which are continuously and uniformly distributed at the first section in the aperture array is taken as the continuous length.

For example, as shown in fig. 2, an X-axis coordinate system is established, where an origin of an X-axis is a position of a first antenna in the antennas disposed from left to right on the antenna panel, and a direction of the X-axis is an arrangement direction of the antennas disposed from left to right on the antenna panel. Since the distance between two antennas is usually an integer multiple of λ/2, for convenience of description, the value of the X coordinate axis in fig. 2 is represented by λ/2, that is, the actual physical position corresponding to the position marked as 1 on the coordinate axis is λ/2, and the actual physical position corresponding to the position marked as 2 on the coordinate axis is 2 × λ/2.

In the configuration of the above-mentioned X coordinate axis, the minimum redundant array arrangement position flag of the multiple receiving antenna arrangement in fig. 2 can be expressed as {0,1,4, 6 }. The minimum redundant array position identifiers indicate the actual physical positions of the several receiving antennas {0,1,4, 6 }. lambda/2, respectively. At this time, the aperture array formed by the receiving antenna array in fig. 2 can be represented as {1, 2, 3, 4, 5, 6 }. lambda/2, and for convenience of description, the aperture array is indicated by an aperture array identifier, wherein the aperture array identifier is equivalent to dividing each antenna aperture in the aperture array by lambda/2. Thus, the aperture array identifier corresponding to the aperture array {1, 2, 3, 4, 5, 6 }. lambda/2 can be expressed as {1, 2, 3, 4, 5, 6}, the first aperture is 6. lambda/2, and the continuous length is 6. lambda/2.

For another example, the minimum redundant array position identifier of the multiple transmit antenna array may be represented as {0,1,4, 6, 15}, the aperture array identifier may be represented as {1, 2, 3, 4, 5, 6,9,11, 14, 15}, and the first aperture is 15 x λ/2 and the continuous length is 6 x λ/2.

The antenna panel 130 may be a rectangular thin plate, but may be a thin plate having another shape, which is not particularly limited in the embodiment of the present application. The size of the antenna panel 130 is generally the length of the long side of the rectangle. The first antenna 110 is arranged in a direction generally parallel to the long side of the rectangle, and the second antenna 120 is arranged in a direction generally parallel to the long side of the rectangle.

The array arrangement method of the antenna array provided in the embodiment of the present application may be executed in a terminal or a server, which is not limited in the embodiment of the present application. The following description will take the terminal as an example.

Fig. 3 is a flowchart of an array arrangement method of an antenna array according to an embodiment of the present application. As shown in fig. 3, the method for arranging the antenna array may include the following steps.

Step 301: the terminal obtains the minimum redundant array arrangement position of each first antenna in the first antenna set and the minimum redundant array arrangement position of each second antenna in the second antenna set based on the minimum redundant array arrangement algorithm and the wavelength corresponding to the working frequency of the antennas, wherein the first antenna is one of a transmitting antenna and a receiving antenna, and the second antenna is the other one of the transmitting antenna and the receiving antenna except the first antenna.

The first antenna may be a transmitting antenna, and certainly, the first antenna may also be a receiving antenna, and the corresponding second antenna is another one of the transmitting antenna and the receiving antenna except for the first antenna, which is not specifically limited in this embodiment of the present application.

To reduce the complexity of the antenna array system and save the cost and resources of manufacturing the antenna array, it is necessary to use fewer antennas to achieve a larger continuous length. In one possible implementation, a minimal redundant array packing algorithm can achieve this. The antenna array obtained according to the minimum redundant array algorithm is called a minimum redundant array. The minimum redundant array achieves a much larger continuous length than the uniform array with minimal redundancy. Redundancy refers to the ratio of the number of spacings between any two antennas in an antenna array to the number of elements in a set constructed from the spacings. When the continuous length is given, the number of antenna arrays obtained according to the minimum redundant array algorithm is minimum. Thus, step 301 may be implemented by a minimal redundancy array algorithm. Of course, the implementation may also be realized by other ways such as an empirical method, and this is not specifically limited in the embodiment of the present application. Next, the minimum redundant array algorithm is used to obtain the minimum redundant array arrangement position of the antenna array.

The minimum redundant array arrangement algorithm is obtained by combining a sparse arrangement technology and a virtual array element technology.

The sparse array technology is to arrange a small number of antennas with unequal intervals to realize a large antenna aperture. An antenna array obtained by the sparse array technique is called a sparse array. For example, the location identifier of the minimum redundant array of four receiving antennas can be represented as {0,1,4, 6}, and the aperture array identifier can be represented as {1, 2, 3, 4, 5, 6 }. The minimum redundant array placement position identifiers of the seven receiving antennas can be represented as 0,1, 2, 3, 4, 5, 6, and the aperture array identifiers can be represented as 1,2, 3, 4, 5, 6. Then, the sparse array of four receive antennas achieves the same antenna aperture as a uniform array of seven receive antennas.

In addition, the virtual array element technology refers to the use of the distance difference between a plurality of transmitting antennas to realize a larger antenna aperture. The antenna array obtained by the virtual array element technique is called a virtual array. For example, as shown in fig. 4, in a dual-transmit four-receive antenna array, the transmit antennas are indicated by o and the receive antennas are indicated by x. The minimum redundant array arrangement position mark of the transmitting antenna can be expressed as {0, 4}, and the minimum redundant array arrangement position mark of the receiving antenna can be expressed as {0,1, 2, 3 }. The four receiving antennas respectively receive the echo signals of the signals transmitted by the two transmitting antennas to form a virtual array. The specific implementation process is as follows: the formation process of the virtual array is specifically described by taking the receiving antenna with the minimum redundant array arrangement position mark of 0 as an example. The two transmitting antennas sequentially transmit signals according to the sequence, the receiving antenna with the minimum redundant array arrangement position mark of 0 receives the echo signal of the transmitting antenna transmitting signal with the minimum redundant array arrangement position mark of 0, and the receiving antenna minimum redundant array arrangement position mark of 0 in the formed virtual array. The receiving antenna with the minimum redundant array arrangement position mark of 0 receives the echo signal of the transmitting antenna transmitting signal with the minimum redundant array arrangement position mark of 4, and the minimum redundant array arrangement position mark of the formed virtual array is 4. Therefore, the minimum redundant array layout position identifier of the receiving antennas in the virtual array formed by the four receiving antennas respectively receiving the two transmitting antennas can be represented as {0,1, 2, 3, 4, 5, 6, 7}, and then the virtual array aperture array identifier can be represented as {1, 2, 3, 4, 5, 6, 7 }. As shown in fig. 5, for an antenna array with eight antennas, the transmit antennas are indicated by o and the receive antennas are indicated by x. The minimum redundant array arrangement position identifier of the transmitting antenna can be represented as {0}, the minimum redundant array arrangement position identifier of the receiving antenna can be represented as {0,1, 2, 3, 4, 5, 6, 7}, and then the aperture array identifier of the receiving antenna can be represented as {1, 2, 3, 4, 5, 6, 7 }. Namely the same antenna aperture of the double-transmitting four-receiving virtual array and the one-transmitting eight-receiving array.

After the first antennas and the second antennas are arranged at the minimum redundant array arrangement positions of the first antennas and the minimum redundant array arrangement positions of the second antennas obtained according to the minimum redundant array arrangement algorithm, the distance between the two antennas which are farthest away in the virtual array formed by the second antennas and the first antennas may or may not exceed the size of the antenna panel. Under the condition that the distance between two antennas which are farthest away in the virtual arrays formed by the second antennas and the first antennas does not exceed the size of the antenna panel, the first antennas and the second antennas can be arranged according to the minimum redundant array arrangement position of the first antennas and the minimum redundant array arrangement position of the second antennas, which are obtained by the minimum redundant array arrangement algorithm, so that the antenna arrangement mode is obtained quickly. When the distance between two antennas with the farthest distance in the virtual array formed by each second antenna and each first antenna exceeds the size of the antenna panel, the antennas are arrayed through the following

steps

302 and 303, so that the space of the antenna panel is fully utilized to obtain the continuous maximum antenna aperture under the constraint of the size of the antenna panel.

Therefore, after the minimum redundant array arrangement position of each first antenna and the minimum redundant array arrangement position of each second antenna are obtained by the minimum redundant array arrangement algorithm, in a possible implementation manner, a finite space constraint condition is set based on the size of the antenna panel, and then which step is to be executed is determined according to a judgment result of the finite space constraint condition.

The purpose of the above-mentioned limited space constraint is: and judging whether the distance between two antennas with the farthest distance in a virtual array formed by each second antenna and each first antenna exceeds the size of an antenna panel or not after the first antenna and the second antenna are arrayed at the minimum redundant array arrangement position of each first antenna and the minimum redundant array arrangement position of each second antenna obtained according to the minimum redundant array arrangement algorithm.

In a possible implementation manner, the above-mentioned limited space constraint condition may be specifically expressed by the following formula:

wherein λ represents the wavelength corresponding to the working frequency of the antenna, D_ARepresenting the largest minimum redundant array placement position identifier among the minimum redundant array placement position identifiers of each first antenna in the first antenna set, D_BAnd the maximum minimum redundant array arrangement position mark in the minimum redundant array arrangement position marks of all the second antennas in the second antenna set is represented, and L represents the size of the antenna panel.

The spacing between the two antennas that are farthest apart in the virtual array. When in use

Greater than L, i.e., the spacing between the two farthest apart antennas in the virtual array exceeds the antenna panel size.

And if the distance between the two antennas with the farthest distance does not exceed the size of an antenna panel after the first antennas and the second antennas are arranged according to the minimum redundant array arrangement position of each first antenna in the first antenna set and the minimum redundant array arrangement position of each second antenna in the second antenna set, taking the minimum redundant array arrangement position of each first antenna in the first antenna set as the final sparse arrangement position of the corresponding first antenna, and taking the minimum redundant array arrangement position of each second antenna in the second antenna set as the final sparse arrangement position of the corresponding second antenna.

Then, the final sparsely populated position of the first antenna is:

wherein, a represents the minimum redundant array arrangement position identification of the plurality of first antennas, and λ represents the wavelength corresponding to the antenna operating frequency.

The final sparsely populated array position of each second antenna is:

wherein, B represents the minimum redundant array arrangement position identification of a plurality of second antennas, lambda represents the wavelength corresponding to the working frequency of the antenna, and N is a variable parameter. The maximum value of N is:

wherein L represents the size of the antenna panel, λ represents the wavelength corresponding to the antenna operating frequency, D_BAnd representing the largest minimum redundant array arrangement position identification in the minimum redundant array arrangement position values of the second antennas in the second antenna set.

If the first antennas and the second antennas are arranged according to the minimum redundant array arrangement position of each first antenna in the first antenna set and the minimum redundant array arrangement position of each second antenna in the second antenna set, and then the distance between the two antennas which are farthest away in the virtual array formed by each second antenna and each first antenna exceeds the size of the antenna panel, that is, after the above-mentioned limited space constraint condition is satisfied, it means that the size of the existing antenna panel cannot satisfy the required antenna aperture, at this time, the arrangement can be performed by the following method of steps 302 to 303.

Step 302: and the terminal determines the final sparse array arrangement position of each first antenna in the first antenna set based on the minimum redundant array arrangement position and the antenna panel size of each first antenna in the first antenna set.

When the antennas are arranged in the antenna panel according to the minimum redundant array algorithm, as shown in fig. 6, the first antenna is indicated by o and the second antenna is indicated by x. The first apertures of the first plurality of antennas and the first apertures of the second plurality of antennas differ substantially. And because a plurality of first antennas are distributed in a relatively concentrated manner in the length direction of the antenna panel, the utilization rate of the space of the antenna panel is low, and the distance between two antennas which are farthest away in the second antenna set exceeds the size of the antenna panel, so that the arrangement on the antenna panel cannot be realized. In order to avoid the above problem, the final sparsely populated position of each first antenna may be determined by the following steps.

Step a: for a target first antenna in the first antenna set, determining a first multiplying factor based on the size of the antenna panel and the distance between two first antennas which are farthest away when each first antenna is at the respective minimum redundant array arrangement position, wherein the target first antenna is any one first antenna in the first antenna set, and the first multiplying factor indicates the amplification factor of the final sparse arrangement position of the target first antenna relative to the minimum redundant array arrangement position.

In one possible implementation, considering the constraints of the antenna panel size, the first magnification factor is expressed as follows:

wherein q represents a first multiplying factor, L represents the size of the antenna panel, λ represents the wavelength corresponding to the working frequency of the antenna, and D_AAnd representing the largest minimum redundant array arrangement position identifier in the minimum redundant array arrangement position identifiers of the first antennas in the first antenna set, namely representing the distance between two first antennas which are farthest away when the first antennas are at the minimum redundant array arrangement position, wherein floor () is a rounding-down operation.

Step b: and determining the final sparse array arrangement position of the target first antenna based on the minimum redundant array arrangement position and the first multiplying factor of the target first antenna.

In one possible implementation, the final sparsely populated position of the first antennas is calculated as follows:

and the pos _ A represents the final sparse array arrangement position of the first antennas, and the A represents the minimum redundant array arrangement position identification of the first antennas.

Optionally, the final sparsely populated position of the first antenna may also be calculated as follows:

step 303: and the terminal determines the final sparse array position of each second antenna in the second antenna set based on the final sparse array position of each first antenna in the first antenna set, the minimum redundant array position of each second antenna in the second antenna set and the size of the antenna panel.

In order to obtain the maximum continuous length of each second antenna, the sparse array position of each second antenna in the second antenna set needs to be continuously adjusted based on the final sparse array position of each first antenna in the first antenna set, the minimum redundant array position of each second antenna in the second antenna set and the size of the antenna panel, so that the difference between the first aperture of the receiving antenna and the first aperture of the transmitting antenna is small, and the utilization rate of the antenna panel is improved.

The plurality of second antennas form a virtual array using a distance difference between the plurality of first antennas. Since the sparsely arranged positions of the plurality of second antennas are continuously adjusted, the plurality of second antennas and the plurality of first antennas combine to form a plurality of virtual arrays. In order to obtain a virtual array with the largest continuous length, a larger antenna aperture is obtained by an antenna array with a smaller number of antennas on the basis of fully utilizing the space of an antenna panel. In one possible implementation, step 303 may be implemented by the following steps.

Step a: and determining a plurality of candidate position sets based on the minimum redundant array arrangement position and the antenna panel size of each second antenna in the second antenna set, wherein each candidate position set corresponds to one candidate sparse arrangement position distribution of each second antenna in the second antenna set.

The candidate position of the second antenna has uncertainty as long as the second antenna candidate position meets the antenna panel size requirements. Therefore, in a possible implementation manner, step a may specifically be: and determining the multiplying power range based on the size of the antenna panel and the distance between two second antennas which are farthest away when each second antenna is at the minimum redundant array arrangement position. Based on the magnification range, a plurality of second magnification factors are determined. And determining a plurality of candidate position sets based on the plurality of second multiplying factors and the minimum redundant array arrangement position of each second antenna in the second antenna set, wherein the plurality of candidate position sets correspond to the plurality of second multiplying factors respectively.

In one possible implementation, the magnification range is calculated as follows, taking into account constraints on the size of the antenna panel:

wherein Q represents the multiplying power range, L represents the size of the antenna panel, lambda represents the wavelength corresponding to the working frequency of the antenna, and D_BAnd representing the maximum minimum redundant array arrangement position in the minimum redundant array arrangement position identification of each second antenna in the second antenna set, namely representing the distance between two second antennas which are farthest away when each second antenna is at the minimum redundant array arrangement position, wherein floor () is a rounding-down operation.

The above formula is only one optional implementation manner for determining the magnification range, and the magnification range may be determined by other implementation manners according to the embodiments of the present application, which are not illustrated herein.

In one possible implementation, the second magnification factor is calculated as follows:

P_i＝Q-1+iΔP

Δ P is chosen as desired, and is generally chosen to be less than D_BThe reciprocal of (c). Δ P represents P_iThe step size value of the change. i is a constantly changing quantity, the range of i satisfies P_i×D_BAnd L, ensuring that the distance between two antennas with the farthest distance in the second antenna set does not exceed the size of the antenna panel. i is continuously changed, and a plurality of second factors P respectively corresponding to different i are obtained according to a formula_i。

The above formula is only one alternative implementation manner for determining the second magnification factor, and the embodiment of the present application may also determine the second magnification factor through other implementation manners, which are not illustrated herein.

In one possible implementation manner, the candidate position of each second antenna in the second antenna set is calculated according to the following formula:

and pos _ B (i) represents the final sparsely-arranged positions of the second antennas in the ith set, λ represents the wavelength corresponding to the working frequency of the antennas, and B represents the minimum redundant array arranged position of the second antennas. round () is a rounding operation. Based on a plurality of second factors P_iThen, a plurality of candidate position sets respectively corresponding to the second factors are obtained according to the formula.

The above formula is only one alternative implementation manner for determining the candidate position, and the embodiment of the present application may also determine the candidate position through other implementation manners, which are not illustrated herein.

In order to obtain a virtual array of maximum continuous length, a satisfactory candidate location distribution needs to be selected from the determined plurality of candidate location sets.

Step b: determining virtual continuous lengths respectively corresponding to the plurality of candidate position sets based on the final sparsely populated position of each first antenna in the first antenna set, wherein the virtual continuous lengths refer to: after each second antenna in the second antenna set is arrayed based on the candidate sparse array position of each second antenna in the corresponding candidate position set and the final sparse array position of each first antenna, the continuous length in the virtual array formed by each second antenna and each first antenna is the distance between two antennas with the farthest distance in the multiple antennas with continuously and uniformly distributed positions.

And combining the candidate sparse array positions of the second antennas in each candidate position set with the final sparse array position of each first antenna in the first antenna set, namely, respectively receiving the echo signals of the signals transmitted by the first antennas by the second antennas to form a virtual array. The candidate sparsely populated positions of each second antenna in the plurality of candidate position sets may be combined with the final sparsely populated position of the first antenna in the first antenna set to form a plurality of virtual arrays.

Different virtual arrays have different virtual run lengths. For example, the position of the receiving antenna in the virtual array may be represented as {0,1, 2, 3, 4, 5, 6, 7}, the virtual continuous length of the virtual array is 7 x λ/2, and the virtual array may be represented as {0,1, 2, 3, 4, 7}, the virtual continuous length of the virtual array is 4 x λ/2.

Step c: and determining the candidate sparse array position in the candidate position set corresponding to the maximum virtual continuous length as the final sparse array position of each second antenna in the second antenna set.

For example, if the maximum virtual continuous length in the above example is 7 × λ/2, the candidate position of each second antenna forming the virtual array is determined as the final sparsely-arranged position of each second antenna.

It should be noted that the arrangement method corresponding to the receiving antenna and the transmitting antenna may be reciprocal, and this is not specifically limited in this embodiment of the application. When the first antenna is a transmitting antenna and the second antenna is a receiving antenna. And determining the final sparse array arrangement position of each receiving antenna in the receiving antenna set based on the final sparse array arrangement position of each transmitting antenna in the transmitting antenna set, the minimum redundant array arrangement position of each receiving antenna in the receiving antenna set and the size of the antenna panel. Of course, the first antenna may also be a receiving antenna, the second antenna is a transmitting antenna, the final sparsely-arranged position of each receiving antenna in the receiving antenna set is determined based on the minimum redundant array arrangement position and the antenna panel size of each receiving antenna in the receiving antenna set, and the final sparsely-arranged position of each transmitting antenna in the transmitting antenna set is determined based on the final sparsely-arranged position of each receiving antenna in the receiving antenna set, the minimum redundant array arrangement position of each transmitting antenna in the transmitting antenna set, and the antenna panel size.

For ease of understanding, steps 302 to 303 are specifically described below by way of specific examples. For example, the size L of the antenna panel is 12cm, and the antenna is manufacturedThe wavelength λ corresponding to the frequency is 4mm, the number of the first antennas is 6, and the number of the second antennas is 8. The first antenna minimum redundant array arrangement position identification obtained based on the minimum redundant array algorithm is A ═ 0,1,6,9,11,13}, D_A13, the minimum redundant array placement position of the second antenna is identified as B ═ 0,1,4,10,16,18,21,23, D_B＝23。

Firstly, judging whether the minimum redundant array arrangement position of the antenna in the antenna array meets the constraint condition of the finite space.

The finite space constraint conditions are as follows:

and (3) bringing the specific numerical values into judgment:

and if the limited space constraint condition is met, determining a first multiplying factor of the target first antenna:

determining the final sparse array arrangement position of each first antenna in the first antenna set based on the minimum redundant array arrangement position and the first multiplying factor of the plurality of first antennas:

determining a magnification range of the plurality of second antennas:

determining a second magnification factor, taking Δ P equal to 0.04, P_iCan be used for2.6 is taken.

Determining candidate positions of the second antennas in the second antenna set:

when P is present_iTaking different values, a plurality of second antenna sets may be determined.

Determining that the maximum virtual continuous length appears in P based on the final sparsely populated position of each first antenna in the first antenna set and the candidate position of each second antenna in the second antenna set_i2.6. And determining the candidate position of each second antenna in the second antenna set corresponding to the numerical value as the final sparsely-distributed position. The maximum virtual continuous length is 107 x lambda/2.

And arranging each first antenna in the first antenna set and each second antenna in the second antenna set on the antenna panel, as shown in the top view of the antenna panel in fig. 7, wherein the first antenna is indicated by o, the second antenna is indicated by x, each first antenna and each second antenna form a virtual array in combination, fig. 8 is a schematic diagram of the antenna aperture arrangement of the virtual array, and as shown in fig. 8, when the position of the virtual array antenna aperture is identified as 107, the subsequent antenna apertures are not continuous any more. That is, the virtual continuous length formed based on the final sparsely populated position of each first antenna in the first antenna set and the final sparsely populated position of each second antenna in the second antenna set is 107 × λ/2. The discrete antenna apertures are arranged in order in fig. 9.

At this time, under the condition that the constraint condition of the finite space is satisfied, the final sparsely-arranged positions of each first antenna in the first antenna set and the final sparsely-arranged positions of each second antenna in the second antenna set are calculated according to the minimum redundant array algorithm. The final sparsely populated position of each first antenna in the first antenna set and the final sparsely populated position of each second antenna in the second antenna set after being populated may be determined as follows.

Determining the final sparsely populated position of each first antenna in the first antenna set:

determining the final sparsely populated position of each second antenna in the second antenna set:

the virtual continuous length formed based on the final sparsely populated position of each first antenna in the first set of antennas and the final sparsely populated position of each second antenna in the second set of antennas is 59 x λ/2.

When the antenna array arrangement method provided by the embodiment of the application is adopted, the obtained maximum virtual continuous length is 107 x lambda/2, and when the minimum redundant array algorithm is adopted for antenna array arrangement, the obtained virtual continuous length is 59 x lambda/2. Therefore, the array arrangement method of the antenna array provided by the embodiment of the application obtains a larger virtual continuous length.

In addition, when the array arrangement method of the antenna array provided by the embodiment of the application is adopted, the maximum final sparse arrangement position in the final sparse arrangement positions of the first antennas is 52 × λ/2, and the maximum final sparse arrangement position in the final sparse arrangement positions of the second antennas is 59 × λ/2. That is to say the largest antenna aperture in the respective first antenna and the largest antenna aperture in the respective second antenna are close. And when the minimum redundant array algorithm is adopted for antenna array arrangement, the maximum final sparse arrangement position in the final sparse arrangement positions of the first antennas is 13 x lambda/2, and the maximum final sparse arrangement position in the final sparse arrangement positions of the second antennas is 46 x lambda/2. Therefore, the array arrangement method of the antenna array provided by the embodiment of the application makes full use of the space of the antenna panel, and further improves the utilization rate of the antenna panel

To sum up, in the embodiment of the present application, when determining the final sparsely-arranged position of each first antenna in the first antenna set, the minimum redundant array arrangement position and the antenna panel size of each first antenna in the first antenna set are considered, that is, under the condition that the antenna panel size constrains the final sparsely-arranged position of each first antenna, the obtained arrangement length of each first antenna is close to the antenna panel size. When the final sparse array position of each second antenna in the second antenna set is determined, the final sparse array position of each first antenna in the first antenna set, the minimum redundant array position of each second antenna in the second antenna set and the size of the antenna panel are considered, that is, under the condition that the size of the antenna panel is restricted to the final sparse array position of each second antenna, the array length of each second antenna is obtained to be close to the size of the antenna panel. Therefore, the arrangement length of each first antenna and the arrangement length of each second antenna are close to the size of the antenna panel, so that the maximum antenna aperture of each first antenna is close to the maximum antenna aperture of each second antenna as much as possible, the space of the antenna panel is fully utilized by the method provided by the embodiment of the application, and the utilization rate of the antenna panel is further improved. In addition, the final sparse array arrangement position of each first antenna is also considered when the final sparse array arrangement position of each second antenna is determined, so that the antenna aperture of the antenna array with a large number of antennas is realized through the antenna array with a small number of antennas, namely, on the basis of fully utilizing the space of the antenna panel, the antenna array with a small number of antennas obtains a large antenna aperture.

Referring to fig. 1, the present application provides an antenna array, where o in fig. 1 denotes a first antenna, and x in fig. 1 denotes a second antenna.

The antenna array comprises a first antenna set and a second antenna set, wherein the first antenna set comprises one or more first antennas, the second antenna set comprises one or more second antennas, the first antennas are one of transmitting antennas and receiving antennas, and the second antennas are the other of the transmitting antennas and the receiving antennas except the first antennas;

the first antennas in the first antenna set are arrayed according to the final sparse array arrangement position, and the second antennas in the second antenna set are arrayed according to the final sparse array arrangement position;

the minimum redundant array arrangement position of each first antenna in the first antenna set and the minimum redundant array arrangement position of each second antenna in the second antenna set are determined based on a minimum redundant array arrangement algorithm and the wavelength corresponding to the working frequency of the antenna.

Alternatively,

for a target first antenna in the first antenna set, determining a final sparse array arrangement position of the target first antenna based on a minimum redundant array arrangement position of the target first antenna and a first multiplying factor, wherein the target first antenna is any one first antenna in the first antenna set, and the first multiplying factor indicates the amplification factor of the final sparse array arrangement position of the target first antenna relative to the minimum redundant array arrangement position;

the first multiplying factor is determined based on the size of the antenna panel and the distance between two first antennas which are farthest away when each first antenna is at the respective minimum redundant array arrangement position.

Alternatively,

the final sparsely-arranged position of each second antenna in the second antenna set is each candidate sparsely-arranged position in the candidate position set corresponding to the maximum virtual continuous length in the multiple candidate position sets, each candidate position set corresponds to one candidate sparsely-arranged position of each second antenna in the second antenna set, and the virtual continuous length is as follows: arranging each second antenna in the second antenna set based on the candidate sparse arrangement position of each second antenna in the corresponding candidate position set and the final sparse arrangement position of each first antenna, and then forming a virtual array of continuous lengths of each second antenna and each first antenna;

Alternatively, the first and second liquid crystal display panels may be,

the plurality of candidate position sets are determined based on the plurality of second power factors and the minimum redundant array arrangement position of each second antenna in the second antenna set, the plurality of candidate position sets respectively correspond to the plurality of second power factors, and the second power factors indicate the amplification times of the final sparse arrangement position of the second antenna relative to the minimum redundant array arrangement position;

the plurality of second multiplying factors are determined based on the multiplying power range, and the multiplying power range is determined based on the size of the antenna panel and the distance between two second antennas which are farthest away when each second antenna is at the minimum redundant array arrangement position.

Alternatively,

if after the first antennas and the second antennas are arranged according to the minimum redundant array arrangement position of each first antenna in the first antenna set and the minimum redundant array arrangement position of each second antenna in the second antenna set, the distance between two antennas which are farthest away in a virtual array formed by each second antenna and each first antenna exceeds the size of an antenna panel, the final sparse arrangement position of each first antenna in the first antenna set is determined based on the minimum redundant array arrangement position and the size of the antenna panel of each first antenna in the first antenna set;

if the first antennas and the second antennas are arranged according to the minimum redundant array arrangement position of each first antenna in the first antenna set and the minimum redundant array arrangement position of each second antenna in the second antenna set, and the distance between two antennas which are farthest away in a virtual array formed by each second antenna and each first antenna does not exceed the size of an antenna panel, the final sparse arrangement position of the first antenna is the minimum redundant array arrangement position of each first antenna in the first antenna set, and the final sparse arrangement position of the second antenna is the minimum redundant array arrangement position of each second antenna in the second antenna set.

Fig. 10 is a schematic structural diagram of an arrangement device of an antenna array according to an embodiment of the present application. As shown in fig. 10, the arrangement device 1000 of the antenna array may include several modules as follows.

An obtaining module 1001, configured to obtain a minimum redundant array arrangement position of each first antenna in a first antenna set and a minimum redundant array arrangement position of each second antenna in a second antenna set based on a minimum redundant array arrangement algorithm and a wavelength corresponding to an antenna operating frequency, where the first antenna is one of a transmitting antenna and a receiving antenna, and the second antenna is the other of the transmitting antenna and the receiving antenna except the first antenna;

a first determining module 1002, configured to determine a final sparse array arrangement position of each first antenna in the first antenna set based on the minimum redundant array arrangement position and the antenna panel size of each first antenna in the first antenna set;

the second determining module 1003 is configured to determine a final sparse array position of each second antenna in the second antenna set based on the final sparse array position of each first antenna in the first antenna set, the minimum redundant array position of each second antenna in the second antenna set, and the size of the antenna panel.

Optionally, the first determining module 1002 includes:

the determining unit is used for determining a first multiplying factor for a target first antenna in the first antenna set based on the size of an antenna panel and the distance between two first antennas which are farthest away when each first antenna is at the respective minimum redundant array arrangement position, wherein the target first antenna is any one first antenna in the first antenna set, and the first multiplying factor indicates the amplification factor of the final sparse arrangement position of the target first antenna relative to the minimum redundant array arrangement position;

and the determining unit is further used for determining a final sparse array arrangement position of the target first antenna based on the minimum redundant array arrangement position of the target first antenna and the first multiplying factor.

Optionally, the second determining module 1003 includes:

the determining unit is used for determining a plurality of candidate position sets based on the minimum redundant array arrangement position and the antenna panel size of each second antenna in the second antenna set, and each candidate position set corresponds to one candidate sparse arrangement position of each second antenna in the second antenna set;

a determining unit, configured to determine, based on the final sparsely populated position of each first antenna in the first antenna set, virtual continuous lengths corresponding to the multiple candidate position sets, where the virtual continuous lengths refer to: arranging each second antenna in the second antenna set based on the candidate sparse arrangement position of each second antenna in the corresponding candidate position set and the final sparse arrangement position of each first antenna, and then forming a virtual array of continuous lengths of each second antenna and each first antenna;

and the determining unit is further configured to determine each candidate sparsely-arranged position in the candidate position set corresponding to the largest virtual continuous length as a final sparsely-arranged position of each second antenna in the second antenna set.

Optionally, the determining unit is configured to:

determining a plurality of second magnification factors based on the magnification range, the second magnification factors indicating a magnification of the final sparsely populated position of the second antenna relative to the minimum redundant array populated position;

and determining a plurality of candidate position sets based on the plurality of second multiplying factors and the minimum redundant array arrangement position of each second antenna in the second antenna set, wherein the plurality of candidate position sets correspond to the plurality of second multiplying factors respectively.

Optionally, the first determining module 1002 is further configured to:

if the first antennas and the second antennas are arranged according to the minimum redundant array arrangement position of each first antenna in the first antenna set and the minimum redundant array arrangement position of each second antenna in the second antenna set, and the distance between two antennas which are farthest away in a virtual array formed by each second antenna and each first antenna exceeds the size of an antenna panel, the step of determining the final sparse arrangement position of each first antenna in the first antenna set based on the minimum redundant array arrangement position and the size of the antenna panel of each first antenna in the first antenna set is executed;

and if the first antennas and the second antennas are arranged according to the minimum redundant array arrangement position of each first antenna in the first antenna set and the minimum redundant array arrangement position of each second antenna in the second antenna set, and the distance between two antennas which are farthest away in a virtual array formed by each second antenna and each first antenna does not exceed the size of an antenna panel, taking the minimum redundant array arrangement position of each first antenna in the first antenna set as the final sparse arrangement position of the corresponding first antenna, and taking the minimum redundant array arrangement position of each second antenna in the second antenna set as the final sparse arrangement position of the corresponding second antenna.

To sum up, in the embodiment of the present application, when determining the final sparsely-arranged position of each first antenna in the first antenna set, the minimum redundant array position and the antenna panel size of each first antenna in the first antenna set are considered, that is, under the condition that the antenna panel size constrains the final sparsely-arranged position of each first antenna, the obtained arrangement length of each first antenna is close to the antenna panel size. When the final sparse array position of each second antenna in the second antenna set is determined, the final sparse array position of each first antenna in the first antenna set, the minimum redundant array position of each second antenna in the second antenna set, and the antenna panel size are considered, that is, under the condition that the antenna panel size restricts the final sparse array position of each second antenna, the array length of each second antenna is obtained to be close to the antenna panel size. Therefore, the arrangement length of each first antenna and the arrangement length of each second antenna are close to the size of the antenna panel, so that the maximum antenna aperture of each first antenna is close to the maximum antenna aperture of each second antenna as much as possible, the space of the antenna panel is fully utilized by the method provided by the embodiment of the application, and the utilization rate of the antenna panel is further improved. In addition, the final sparse array arrangement position of each first antenna is also considered when the final sparse array arrangement position of each second antenna is determined, so that the antenna aperture of the antenna array with a large number of antennas is realized through the antenna array with a small number of antennas, namely, on the basis of fully utilizing the space of the antenna panel, the antenna array with a small number of antennas obtains a large antenna aperture.

It should be noted that: in the antenna array arrangement device provided in the above embodiment, only the division of each functional module is illustrated when the antenna array is arranged, and in practical application, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the array arrangement device of the antenna array and the array arrangement method of the antenna array provided in the above embodiments belong to the same concept, and specific implementation processes thereof are described in detail in the method embodiments and are not described herein again.

Fig. 11 is a schematic structural diagram of a terminal 1100 according to an embodiment of the present application. The terminal 1100 may be: a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III, motion video Experts compression standard Audio Layer 3), an MP4 player (Moving Picture Experts Group Audio Layer IV, motion video Experts compression standard Audio Layer 4), a notebook computer, or a desktop computer. Terminal 1100 can also be referred to as user equipment, portable terminals, laptop terminals, desktop terminals, and the like by other names.

In general, terminal 1100 includes: a processor 1101 and a memory 1102.

Processor 1101 may include one or more processing cores, such as a 4-core processor, an 8-core processor, or the like. The processor 1101 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 1101 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 1101 may be integrated with a GPU (Graphics Processing Unit) that is responsible for rendering and rendering content that the display screen needs to display. In some embodiments, the processor 1101 may further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.

Memory 1102 may include one or more computer-readable storage media, which may be non-transitory. Memory 1102 can also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory 1102 is configured to store at least one instruction for execution by the processor 1101 to implement the method of arranging antenna arrays provided by the method embodiments of the present application.

In some embodiments, the terminal 1100 may further optionally include: a peripheral interface 1103 and at least one peripheral. The processor 1101, memory 1102 and peripheral interface 1103 may be connected by a bus or signal lines. Various peripheral devices may be connected to the peripheral interface 1103 by buses, signal lines, or circuit boards. Specifically, the peripheral device includes: at least one of radio frequency circuitry 1104, display screen 1105, camera assembly 1106, audio circuitry 1107, positioning assembly 1108, and power supply 1109.

The peripheral interface 1103 may be used to connect at least one peripheral associated with I/O (Input/Output) to the processor 1101 and the memory 1102. In some embodiments, the processor 1101, memory 1102, and peripheral interface 1103 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 1101, the memory 1102 and the peripheral device interface 1103 may be implemented on separate chips or circuit boards, which is not limited by this embodiment.

The Radio Frequency circuit 1104 is used to receive and transmit RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuit 1104 communicates with communication networks and other communication devices via electromagnetic signals. The radio frequency circuit 1104 converts an electric signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electric signal. Optionally, the radio frequency circuit 1104 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuit 1104 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: metropolitan area networks, various generation mobile communication networks (2G, 3G, 4G, and 5G), Wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 1104 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.

The display screen 1105 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 1105 is a touch display screen, the display screen 1105 also has the ability to capture touch signals on or over the surface of the display screen 1105. The touch signal may be input to the processor 1101 as a control signal for processing. At this point, the display screen 1105 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, display 1105 may be one, providing the front panel of terminal 1100; in other embodiments, the display screens 1105 can be at least two, respectively disposed on different surfaces of the terminal 1100 or in a folded design; in other embodiments, display 1105 can be a flexible display disposed on a curved surface or on a folded surface of terminal 1100. Even further, the display screen 1105 may be arranged in a non-rectangular irregular pattern, i.e., a shaped screen. The Display screen 1105 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), and other materials.

Camera assembly 1106 is used to capture images or video. Optionally, camera assembly 1106 includes a front camera and a rear camera. Generally, a front camera is disposed at a front panel of the terminal, and a rear camera is disposed at a rear surface of the terminal. In some embodiments, the number of the rear cameras is at least two, and each rear camera is any one of a main camera, a depth-of-field camera, a wide-angle camera and a telephoto camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize panoramic shooting and VR (Virtual Reality) shooting functions or other fusion shooting functions. In some embodiments, camera assembly 1106 may also include a flash. The flash lamp can be a monochrome temperature flash lamp or a bicolor temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp, and can be used for light compensation at different color temperatures.

The audio circuitry 1107 may include a microphone and a speaker. The microphone is used for collecting sound waves of a user and the environment, converting the sound waves into electric signals, and inputting the electric signals to the processor 1101 for processing or inputting the electric signals to the radio frequency circuit 1104 to achieve voice communication. For stereo capture or noise reduction purposes, multiple microphones may be provided, each at a different location of terminal 1100. The microphone may also be an array microphone or an omni-directional pick-up microphone. The speaker is used to convert electrical signals from the processor 1101 or the radio frequency circuit 1104 into sound waves. The loudspeaker can be a traditional film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, the speaker can be used for purposes such as converting an electric signal into a sound wave audible to a human being, or converting an electric signal into a sound wave inaudible to a human being to measure a distance. In some embodiments, the audio circuitry 1107 may also include a headphone jack.

Positioning component 1108 is used to locate the current geographic position of terminal 1100 for purposes of navigation or LBS (Location Based Service). The Positioning component 1108 may be a Positioning component based on the united states GPS (Global Positioning System), the chinese beidou System, the russian graves System, or the european union galileo System.

Power supply 1109 is configured to provide power to various components within terminal 1100. The power supply 1109 may be alternating current, direct current, disposable or rechargeable. When the power supply 1109 includes a rechargeable battery, the rechargeable battery may support wired or wireless charging. The rechargeable battery may also be used to support fast charge technology.

In some embodiments, terminal 1100 can also include one or more sensors 1110. The one or more sensors 1110 include, but are not limited to: acceleration sensor 1111, gyro sensor 1112, pressure sensor 1113, fingerprint sensor 1114, optical sensor 1115, and proximity sensor 1116.

The acceleration sensor 1111 can detect the magnitude of acceleration in three coordinate axes of a coordinate system established with the terminal 1100. For example, the acceleration sensor 1111 may be configured to detect components of the gravitational acceleration in three coordinate axes. The processor 1101 may control the display screen 1105 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 1111. The acceleration sensor 1111 can also be used for acquisition of motion data of a game or a user.

The gyro sensor 1112 may detect a body direction and a rotation angle of the terminal 1100, and the gyro sensor 1112 may cooperate with the acceleration sensor 1111 to acquire a 3D motion of the user with respect to the terminal 1100. From the data collected by the gyro sensor 1112, the processor 1101 may implement the following functions: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization at the time of photographing, game control, and inertial navigation.

Pressure sensor 1113 may be disposed on a side bezel of terminal 1100 and/or underlying display screen 1105. When the pressure sensor 1113 is disposed on the side frame of the terminal 1100, the holding signal of the terminal 1100 from the user can be detected, and the processor 1101 performs left-right hand recognition or shortcut operation according to the holding signal collected by the pressure sensor 1113. When the pressure sensor 1113 is disposed at the lower layer of the display screen 1105, the processor 1101 controls the operability control on the UI interface according to the pressure operation of the user on the display screen 1105. The operability control comprises at least one of a button control, a scroll bar control, an icon control and a menu control.

The fingerprint sensor 1114 is configured to collect a fingerprint of the user, and the processor 1101 identifies the user according to the fingerprint collected by the fingerprint sensor 1114, or the fingerprint sensor 1114 identifies the user according to the collected fingerprint. Upon recognizing that the user's identity is a trusted identity, the user is authorized by the processor 1101 to perform relevant sensitive operations including unlocking the screen, viewing encrypted information, downloading software, paying for and changing settings, etc. Fingerprint sensor 1114 may be disposed on the front, back, or side of terminal 1100. When a physical button or vendor Logo is provided on the terminal 1100, the fingerprint sensor 1114 may be integrated with the physical button or vendor Logo.

Optical sensor 1115 is used to collect ambient light intensity. In one embodiment, the processor 1101 may control the display brightness of the display screen 1105 based on the ambient light intensity collected by the optical sensor 1115. Specifically, when the ambient light intensity is high, the display brightness of the display screen 1105 is increased; when the ambient light intensity is low, the display brightness of the display screen 1105 is reduced. In another embodiment, processor 1101 may also dynamically adjust the shooting parameters of camera assembly 1106 based on the ambient light intensity collected by optical sensor 1115.

Proximity sensor 1116, also referred to as a distance sensor, is typically disposed on a front panel of terminal 1100. Proximity sensor 1116 is used to capture the distance between the user and the front face of terminal 1100. In one embodiment, when the proximity sensor 1116 detects that the distance between the user and the front face of the terminal 1100 is gradually decreased, the display screen 1105 is controlled by the processor 1101 to switch from a bright screen state to a dark screen state; when the proximity sensor 1116 detects that the distance between the user and the front face of the terminal 1100 becomes progressively larger, the display screen 1105 is controlled by the processor 1101 to switch from a breath-screen state to a light-screen state.

Those skilled in the art will appreciate that the configuration shown in fig. 11 does not constitute a limitation of terminal 1100, and may include more or fewer components than those shown, or may combine certain components, or may employ a different arrangement of components.

The present invention also provides a non-transitory computer-readable storage medium, where instructions in the storage medium, when executed by a processor of a terminal, enable the terminal to perform the method for arranging an antenna array provided in the above embodiment.

The present application further provides a computer program product containing instructions, which when run on a terminal, causes the terminal to execute the method for arranging an antenna array provided in the foregoing embodiments.

Fig. 12 is a schematic structural diagram of a server according to an embodiment of the present application. The server may be a server in a cluster of background servers. Specifically, the method comprises the following steps:

the server 1200 includes a Central Processing Unit (CPU)1201, a system memory 1204 including a Random Access Memory (RAM)1202 and a Read Only Memory (ROM)1203, and a system bus 1205 connecting the system memory 1204 and the central processing unit 1201. The server 1200 also includes a basic input/output system (I/O system) 1206, which facilitates transfer of information between devices within the computer, and a mass storage device 1207 for storing an operating system 1213, application programs 1214, and other program modules 1215.

The basic input/output system 1206 includes a display 1208 for displaying information and an input device 1209, such as a mouse, keyboard, etc., for user input of information. Wherein a display 1208 and an input device 1209 are connected to the central processing unit 1201 through an input-output controller 1210 connected to the system bus 1205. The basic input/output system 1206 may also include an input/output controller 1210 for receiving and processing input from a number of other devices, such as a keyboard, mouse, or electronic stylus. Similarly, input-output controller 1210 also provides output to a display screen, a printer, or other type of output device.

The mass storage device 1207 is connected to the central processing unit 1201 through a mass storage controller (not shown) connected to the system bus 1205. The mass storage device 1207 and its associated computer-readable media provide non-volatile storage for the server 1200. That is, the mass storage device 1207 may include a computer-readable medium (not shown) such as a hard disk or CD-ROM drive.

Without loss of generality, computer readable media may comprise computer storage media and communication media. Computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media includes RAM, ROM, EPROM, EEPROM, flash memory or other solid state memory technology, CD-ROM, DVD, or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices. Of course, those skilled in the art will appreciate that computer storage media is not limited to the foregoing. The system memory 1204 and mass storage device 1207 described above may be collectively referred to as memory.

According to various embodiments of the present application, the server 1200 may also operate as a remote computer connected to a network through a network, such as the Internet. That is, the server 1200 may be connected to the network 1212 through a network interface unit 1211 connected to the system bus 1205, or the network interface unit 1211 may be used to connect to other types of networks or remote computer systems (not shown).

The memory further includes one or more programs, and the one or more programs are stored in the memory and configured to be executed by the CPU. The one or more programs include a program for performing an array method of an antenna array provided in an embodiment of the present application, which is described below.

The present invention also provides a non-transitory computer-readable storage medium, and when instructions in the storage medium are executed by a processor of a server, the server is enabled to execute the method for arranging antenna arrays provided in the foregoing embodiments.

Embodiments of the present application further provide a computer program product containing instructions, which when run on a server, cause the server to perform the array arrangement method for an antenna array provided in the foregoing embodiments.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method of arranging an antenna array, the method comprising:

and determining the final sparse array arrangement position of each second antenna in the second antenna set based on the final sparse array arrangement position of each first antenna in the first antenna set, the minimum redundant array arrangement position of each second antenna in the second antenna set and the size of the antenna panel.

2. The method of claim 1, wherein the determining a final sparsely populated position for each first antenna in the first set of antennas based on a minimum redundant array populated position and an antenna panel size for each first antenna in the first set of antennas comprises:

3. The method of claim 1, wherein the determining the final sparsely populated position of each second antenna in the second set of antennas based on the final sparsely populated position of each first antenna in the first set of antennas, the minimum redundant array populated position of each second antenna in the second set of antennas, and the antenna panel size comprises:

4. The method of claim 3, wherein determining a plurality of sets of candidate positions based on the minimum redundant array placement position and the antenna panel size for each second antenna in the second set of antennas comprises:

5. The method of claim 1, wherein prior to determining the final sparsely populated position for each first antenna in the first set of antennas based on the minimum redundant array populated position and the antenna panel size for each first antenna in the first set of antennas, the method further comprises:

6. An antenna array comprising a first set of one or more first antennas and a second set of one or more second antennas, the first antennas being one of transmit antennas and receive antennas and the second antennas being the other of the transmit antennas and the receive antennas except for the first antennas;

the final sparse array position of each first antenna in the first antenna set is determined based on the minimum redundant array position and the antenna panel size of each first antenna in the first antenna set;

the final sparse array position of each second antenna in the second antenna set is determined based on the final sparse array position of each first antenna in the first antenna set, the minimum redundant array position of each second antenna in the second antenna set and the size of the antenna panel;

7. The antenna array of claim 6,

8. The antenna array of claim 6,

9. An antenna array according to claim 8,

10. The antenna array of claim 6,

11. An arrangement device for an antenna array, the arrangement device comprising:

an obtaining module, configured to obtain a minimum redundant array arrangement position of each first antenna in a first antenna set and a minimum redundant array arrangement position of each second antenna in a second antenna set based on a minimum redundant array arrangement algorithm and a wavelength corresponding to an antenna operating frequency, where the first antenna is one of a transmitting antenna and a receiving antenna, and the second antenna is the other one of the transmitting antenna and the receiving antenna except for the first antenna;

a second determining module, configured to determine a final sparsely populated position of each second antenna in the second antenna set based on the final sparsely populated position of each first antenna in the first antenna set, the minimum redundant array populated position of each second antenna in the second antenna set, and the size of the antenna panel.

12. A computer device, characterized in that the computer device comprises:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the steps of the method of any of the above claims 1 to 5.

13. A computer-readable storage medium having stored thereon instructions which, when executed by a processor, carry out the steps of the method of any of the preceding claims 1 to 5.