CN111430917A - Control method, device and system of phased array antenna - Google Patents
Control method, device and system of phased array antenna Download PDFInfo
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- CN111430917A CN111430917A CN202010306278.7A CN202010306278A CN111430917A CN 111430917 A CN111430917 A CN 111430917A CN 202010306278 A CN202010306278 A CN 202010306278A CN 111430917 A CN111430917 A CN 111430917A
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- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
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Abstract
The invention provides a control method of a phased array antenna, which comprises the steps of obtaining an antenna data table corresponding to the phased array antenna, current phase parameters of the phased array antenna and position information of a signal emission source; determining the signal intensity corresponding to each group of phase parameters, and adjusting the wave beam of the phased array antenna to be a target wave beam corresponding to the target phase parameter according to the target phase parameter with the maximum signal intensity in the multiple groups of phase parameters; and tracking the target beam until the target beam meets a preset condition. According to the invention, the wave beam of the phased array antenna is adjusted through the current phase parameter of the phased array antenna acquired by the inertial navigation module, so that the wave beam is ensured to be constantly directed to the emission source, and the target wave beam can be tracked according to the signal intensity regardless of the posture change of the phased array antenna or the movement of the signal emission source, so that the wave beam of the phased array antenna is ensured to be constantly directed to the emission source, and the signal intensity is kept to be maximum.
Description
Technical Field
The invention belongs to the technical field of wireless communication, and particularly relates to a control method and device of a phased array antenna.
Background
Phased array technology has emerged as early as in the late 30 s of the 20 th century. Phased array radar was an electronically scanned radar developed in the 60's of the 20 th century, improving on previous mechanically scanned radars.
The phased array antenna is developed on the basis of a phased array radar, and has the greatest advantages of being capable of intelligently realizing beam scanning in a large airspace, being large in gain, being capable of accurately tracking and identifying targets in an observation range, being capable of simultaneously tracking the dynamic state of a plurality of targets, feeding back information and carrying out computer analysis. In addition, the phased array antenna can acquire target information in a set airspace, quickly and flexibly change antenna beams and pointing shapes according to targets, and can transmit and receive electromagnetic waves of all frequency bands in the whole space, and the space filtering function of the phased array antenna is realized, namely, the tasks of searching, tracking, capturing, identifying and the like can be accurately completed on a plurality of targets.
Disclosure of Invention
Research shows that the phased array antenna is influenced by environmental factors and changes to a certain extent, for example, the phased array antenna moves due to the movement of a signal emission source or the movement of the phased array antenna, so that the communication quality is reduced, and the requirement of line-generation communication cannot be met. Therefore, a control method of a phased array antenna capable of solving the above problems is required.
Therefore, in order to overcome the above drawbacks of the prior art, the present invention provides a method for controlling a phased array antenna, so as to improve the intelligence of the phased array antenna control and improve the communication quality.
To achieve the above object, there is provided to achieve the above object, a control method of a phased array antenna, the method comprising:
acquiring an antenna data table corresponding to a phased array antenna, current phase parameters of the phased array antenna and position information of a signal emission source, wherein the antenna data table comprises a plurality of groups of phase parameters;
for each group of phase parameters, determining the signal strength corresponding to the group of phase parameters according to the group of phase parameters, the current phase parameters of the phased array antenna and the position information of a signal emission source;
according to the target phase parameter with the maximum signal intensity in the multiple groups of phase parameters, adjusting the wave beam of the phased array antenna to be the target wave beam corresponding to the target phase parameter;
and tracking the target beam until the target beam meets a preset condition.
Optionally, the determining, for each group of phase parameters, the signal strength corresponding to the group of phase parameters according to the group of phase parameters, the current phase parameter of the phased array antenna, and the position information of the signal emission source includes:
for each group of phase parameters, determining a rotation angle corresponding to the phased array antenna according to the group of phase parameters and the current phase parameter of the phased array antenna;
determining a wave beam corresponding to the group of phase parameters according to the rotation angle and the position information of the signal emission source;
and determining the signal intensity corresponding to the group of phase parameters according to the wave beam corresponding to the group of phase parameters.
Optionally, the rotation angle includes a rotation angle of a Z-axis, a rotation angle of an X-axis, and a rotation angle of a Y-axis, and the position information of the signal emission source includes an X-axis coordinate, a Y-axis coordinate, and a Z-axis coordinate of the signal emission source.
Optionally, the determining, according to the rotation angle and the position information of the signal emission source, a beam corresponding to the set of phase parameters includes:
determining a beam pointing angle theta and a beam phase angle phi according to the rotation angle and the position information of the signal emission source;
and determining the beam corresponding to the group of phase parameters according to the beam pointing angle theta and the beam phase angle phi.
Optionally, the determining, according to the beam corresponding to the set of phase parameters, the signal strength corresponding to the set of phase parameters includes:
adjusting the wave beam of the phased array antenna to a wave beam corresponding to the group of phase parameters;
and detecting the signal intensity corresponding to the phased array antenna, and taking the signal intensity as the signal intensity corresponding to the group of phase parameters.
Optionally, the tracking processing on the target beam until the target beam meets a preset condition includes:
detecting the signal strength of the target beam at a first time;
if the difference value between the signal intensity of the target beam at the first moment and the signal intensity corresponding to the target phase parameter does not meet the preset condition, determining an adjacent beam corresponding to the target beam;
determining the signal strength corresponding to the adjacent wave beams;
if the signal intensity corresponding to the adjacent beam is greater than the signal intensity of the target beam at the first time, the adjacent beam is used as the target beam, and the step of determining the adjacent beam corresponding to the target beam is continuously executed until the signal intensity of the adjacent beam is equal to or less than the signal intensity of the target beam.
Optionally, the region pointed by the adjacent beam is adjacent to the region pointed by the target beam.
Optionally, the phase parameter includes: yaw, pitch and roll angles.
The present invention also provides a control apparatus for a phased array antenna, the apparatus comprising:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring an antenna data table corresponding to a phased array antenna, current phase parameters of the phased array antenna and position information of a signal emission source, and the antenna data table comprises a plurality of groups of phase parameters;
the determining unit is used for determining the signal strength corresponding to each group of phase parameters according to the group of phase parameters, the current phase parameters of the phased array antenna and the position information of a signal emission source;
the adjusting unit is used for adjusting the wave beam of the phased array antenna to be a target wave beam corresponding to the target phase parameter according to the target phase parameter with the maximum signal intensity in the multiple groups of phase parameters;
and the tracking unit is used for tracking the target beam until the target beam meets a preset condition.
Optionally, the determining unit is specifically configured to:
for each group of phase parameters, determining a rotation angle corresponding to the phased array antenna according to the group of phase parameters and the current phase parameter of the phased array antenna;
determining a wave beam corresponding to the group of phase parameters according to the rotation angle and the position information of the signal emission source;
and determining the signal intensity corresponding to the group of phase parameters according to the wave beam corresponding to the group of phase parameters.
Optionally, the rotation angle includes a rotation angle of a Z-axis, a rotation angle of an X-axis, and a rotation angle of a Y-axis, and the position information of the signal emission source includes an X-axis coordinate, a Y-axis coordinate, and a Z-axis coordinate of the signal emission source.
Optionally, the determining unit is further specifically configured to:
determining a beam pointing angle theta and a beam phase angle phi according to the rotation angle and the position information of the signal emission source;
and determining the beam corresponding to the group of phase parameters according to the beam pointing angle theta and the beam phase angle phi.
Optionally, the determining unit is further specifically configured to:
adjusting the wave beam of the phased array antenna to a wave beam corresponding to the group of phase parameters;
and detecting the signal intensity corresponding to the phased array antenna, and taking the signal intensity as the signal intensity corresponding to the group of phase parameters.
Optionally, the tracking unit is specifically configured to:
detecting the signal strength of the target beam at a first time;
if the difference value between the signal intensity of the target beam at the first moment and the signal intensity corresponding to the target phase parameter does not meet the preset condition, determining an adjacent beam corresponding to the target beam;
determining the signal strength corresponding to the adjacent wave beams;
if the signal intensity corresponding to the adjacent beam is greater than the signal intensity of the target beam at the first time, the adjacent beam is used as the target beam, and the step of determining the adjacent beam corresponding to the target beam is continuously executed until the signal intensity of the adjacent beam is equal to or less than the signal intensity of the target beam.
Optionally, the region pointed by the adjacent beam is adjacent to the region pointed by the target beam.
Optionally, the phase parameter includes: yaw, pitch and roll angles.
The present invention also provides a control system for a phased array antenna, the system comprising: the system comprises a processor, a storage module, an inertial navigation module, a data transmission module, a Field Programmable Gate Array (FPGA), a signal intensity detection module and a phased array antenna;
the processor is connected with the storage module and is used for acquiring an antenna data table corresponding to the phased array antenna stored in the storage module;
the processor is connected with the inertial navigation module and is used for acquiring the current phase parameters of the phased array antenna acquired by the inertial navigation module;
the processor is connected with the data transmission module and is used for acquiring the position information of the signal emission source acquired by the data transmission module;
the signal intensity detection module is connected with the processor and is used for acquiring the signal intensity corresponding to each group of phase parameters;
the processor is used for obtaining a target phase parameter with the maximum signal intensity from the multiple groups of phase parameters;
the FPGA is connected with the processor and is used for acquiring the target phase parameter and adjusting the wave beam of the phased array antenna to be a target wave beam corresponding to the target phase parameter;
the processor is further configured to perform tracking processing on the target beam until the target beam meets a preset condition.
Compared with the prior art, the control method of the phased array antenna mainly comprises the steps of obtaining an antenna data table corresponding to the phased array antenna, current phase parameters of the phased array antenna and position information of a signal emission source, wherein the antenna data table comprises a plurality of groups of phase parameters; determining the signal intensity corresponding to each group of phase parameters, and adjusting the wave beam of the phased array antenna to be the target wave beam corresponding to the target phase parameter according to the target phase parameter with the maximum signal intensity in the multiple groups of phase parameters; and tracking the target beam until the target beam meets a preset condition. Therefore, the invention can adjust the wave beam of the phased array antenna through the current phase parameter of the phased array antenna acquired by the inertial navigation module to ensure that the wave beam can be constantly directed to the signal emission source, and can track the target wave beam according to the signal intensity no matter the attitude of the phased array antenna changes or the signal emission source moves, thereby ensuring that the wave beam of the phased array antenna can be constantly directed to the emission source and keeping the signal intensity to be maximum.
Drawings
Fig. 1 is a schematic diagram of a system configuration of a control system for a phased array antenna of the present invention;
fig. 2 is a schematic method flow diagram of a method of controlling a phased array antenna of the present invention;
fig. 3 is a schematic diagram of a structure of a control device of a phased array antenna according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
The phased array antenna is influenced by environmental factors and changes to a certain extent, so that the communication quality is reduced, and the requirement of line-generation communication cannot be met. Therefore, a control method of a phased array antenna capable of solving the above problems is required.
To solve the above problems. The invention provides a control method of a phased array antenna, which mainly comprises the steps of obtaining an antenna data table corresponding to the phased array antenna, current phase parameters of the phased array antenna and position information of a signal emission source, wherein the antenna data table comprises a plurality of groups of phase parameters; determining the signal intensity corresponding to each group of phase parameters, and adjusting the wave beam of the phased array antenna to be the target wave beam corresponding to the target phase parameter according to the target phase parameter with the maximum signal intensity in the multiple groups of phase parameters; and tracking the target beam until the target beam meets a preset condition. Therefore, the invention can adjust the wave beam of the phased array antenna through the current phase parameter of the phased array antenna acquired by the inertial navigation module to ensure that the wave beam can constantly point to a certain area, and can track the target wave beam according to the signal intensity no matter the attitude of the phased array antenna changes or the signal emission source moves, thereby ensuring that the wave beam of the phased array antenna can constantly point to the emission source and keeping the signal intensity to be maximum.
Aiming at the method provided by the invention, a control system of the phased array antenna is provided. That is, the present method can be applied to the control system, as shown in fig. 1, the system includes: the system comprises a processor (namely MCU), a storage module (namely Flash), an inertial navigation module (namely an inertial navigation module), a data transmission module, a field programmable gate array (namely FPGA), a signal strength detection module (namely RSSI) and a phased array antenna.
The processor is connected to the storage module, for example, the processor and the storage module may be connected through a Serial Peripheral Interface (SPI), and the processor is configured to obtain an antenna data table corresponding to the phased array antenna stored in the storage module; the processor is connected with the inertial navigation system, for example, the processor is connected with the inertial navigation system through a Universal Asynchronous Receiver Transmitter (UART), and the processor is configured to obtain a current phase parameter of the phased array antenna acquired by the inertial navigation system; the processor is connected with the data transmission module and is used for acquiring the position information of the signal emission source acquired by the data transmission module, wherein the data transmission module can be arranged on the signal emission source; the signal strength detection module is connected with the processor, for example, the signal strength detection module is connected with the processor through an ADC, and the signal strength detection module is configured to acquire, for each group of phase parameters, signal strengths corresponding to the group of phase parameters; the processor is further configured to obtain a target phase parameter with the largest signal strength from the plurality of sets of phase parameters; the FPGA is connected to the processor, for example, the FPGA is connected to the processor through the SPI, and the FPGA is configured to acquire the target phase parameter and adjust a beam of the phased array antenna to a target beam corresponding to the target phase parameter; the processor is further configured to perform tracking processing on the target beam until the target beam meets a preset condition. It should be emphasized that the processor may also communicate with the upper computer to report the current antenna status.
It should be noted that the above application scenarios are only shown for the convenience of understanding the present application, and the embodiments of the present application are not limited in any way in this respect. Rather, embodiments of the present application may be applied to any scenario where applicable.
Various non-limiting embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 2, a method for controlling a phased array antenna according to an embodiment of the present invention is shown. In this embodiment, the method may include, for example, the steps of:
s201: and acquiring an antenna data table corresponding to the phased array antenna, the current phase parameter of the phased array antenna and the position information of a signal emission source.
In this embodiment, the antenna data table may include a plurality of sets of phase parameters, where each set of phase parameters may include: yaw, pitch and roll angles. It should be noted that, the antenna data table corresponding to the phased array antenna may be preset, and the antenna data table refers to an antenna phase table used for adjusting the direction of the phased array antenna beam, for example, each group of phase parameters in the antenna data table corresponds to the beam when the phased array antenna points to the signal emission source, that is, each group of phase parameters is the phase parameter of the beam with the maximum signal strength when the phased array antenna points to the signal emission source, and may be understood as the phase parameter corresponding to the initial attitude of the beam when the phased array antenna points to the signal emission source.
The current phase parameter of the phased array antenna can be understood as a phase parameter at a certain time after the phased array antenna points to a signal emission source for a certain time. Because the position of the phased array antenna may change, the current phase parameter of the phased array antenna may be different from a set of corresponding phase parameters in the antenna data table, and accordingly, the signal strength of the current phase parameter may be reduced compared to the signal strength of the set of phase parameters.
The position information of the signal emission source may be understood as a position in a rectangular coordinate system corresponding to the phased array antenna, and may include x-axis coordinates, y-axis coordinates, and z-axis coordinates, for example.
As an example, if the processor is a Micro Control Unit (MCU), the MCU may be powered up first, and then initialized, such as setting a clock and configuring on-chip resources, and then a serial port command may be waited for, if the command requires F L ASH programming, the F L ASH programming state is entered until all antenna data table programming is completed.
S202: for each group of phase parameters, determining the signal strength corresponding to the group of phase parameters according to the group of phase parameters, the current phase parameters of the phased array antenna and the position information of a signal emission source;
when the search state is entered, the signal strength corresponding to each group of phase parameters in the antenna data table may be determined according to the group of phase parameters, the current phase parameters of the phased array antenna, and the position information of the signal emission source. For example, if the antenna data table includes a group a phase parameter and a group B phase parameter, the signal strength corresponding to the group a phase parameter may be determined according to the group a phase parameter, the current phase parameter of the phased array antenna, and the position information of the signal emission source, and the signal strength corresponding to the group B phase parameter may be determined according to the group B phase parameter, the current phase parameter of the phased array antenna, and the position information of the signal emission source.
Next, a specific way of determining the signal strength corresponding to the set of phase parameters according to the set of phase parameters, the current phase parameters of the phased array antenna, and the position information of the signal emission source will be described. As an example, the following steps may be included:
step a: and aiming at each group of phase parameters, determining the corresponding rotation angle of the phased array antenna according to the group of phase parameters and the current phase parameter of the phased array antenna.
For example, the rotation angle α of the Z axis corresponding to the phased array antenna is the rotation angle required to rotate from the Z axis coordinate in the set of phase parameters to the Z axis coordinate in the current phase parameter of the phased array antenna, the rotation angle β of the X axis corresponding to the phased array antenna is the rotation angle required to rotate from the X axis coordinate in the set of phase parameters to the X axis coordinate in the current phase parameter of the phased array antenna, the rotation angle γ of the Y axis corresponding to the phased array antenna is the rotation angle required to rotate from the Y axis coordinate in the set of phase parameters to the Y axis coordinate in the current phase parameter of the phased array antenna, wherein the rotation sequence of each axis of the coordinate system in which the phased array antenna is located can be obtained by a navigation system, such as referring to the ENU northeast coordinate system, the rotation sequence is the Z axis, the X axis and the Y axis).
Step b: determining a wave beam corresponding to the group of phase parameters according to the rotation angle and the position information of the signal emission source;
for example, assuming that the position information of the signal emission source is (X, Y, Z), the rotation angle of the phased array antenna corresponding to the Z axis is α, the rotation angle of the phased array antenna corresponding to the X axis is β, and the rotation angle of the phased array antenna corresponding to the Y axis is γ;
the method can first perform a Z-axis rotation, i.e., X1X cos α Y sina α, Y1X sin α + Y cosa α, Z1Z, then perform an X-axis transformation, Y2Y 1X cos β Z β sina β, Z β Y sin β + Z β X cosa β, X β X sin γ + Z β X cosa, Z β Y X β Y sin γ + Z β Z cosa γ, Y β, where the beam X β X θ X + Z β X cosa, Z β Y β Y β Y X β X sin γ X + Z β Y X β Y phi 36y2＝x32+y32+z32。
Then, the beam corresponding to the set of phase parameters may be determined according to the beam pointing angle and the beam phase angle. That is, the beam pointing angle and the beam phase angle may be used as the beam corresponding to the set of phase parameters.
Step c: and determining the signal intensity corresponding to the group of phase parameters according to the wave beam corresponding to the group of phase parameters.
Specifically, the beams of the phased array antenna may be adjusted to the beams corresponding to the set of phase parameters through the FPGA; then, the signal intensity corresponding to the wave beam of the phased array antenna as the wave beam corresponding to the group of phase parameters is detected, and the signal intensity is used as the signal intensity corresponding to the group of phase parameters.
S203: and adjusting the wave beam of the phased array antenna to be a target wave beam corresponding to the target phase parameter according to the target phase parameter with the maximum signal intensity in the multiple groups of phase parameters.
After the signal strength corresponding to each set of phase parameters in the antenna data table is obtained, a set of phase parameters with the maximum signal strength can be determined, and the set of phase parameters is called as target phase parameters. And then, the wave beam corresponding to the phased array antenna can be adjusted through the FPGA according to the target wave beam corresponding to the target phase parameter, namely, the wave beam corresponding to the phased array antenna is adjusted into the target wave beam corresponding to the target phase parameter.
S204: and tracking the target beam until the target beam meets a preset condition.
In this embodiment, the signal strength of the target beam at the first time may be detected first, that is, the signal strength of the phased array antenna at the first time when the beam is the target beam is detected first. If the difference value between the signal intensity of the target beam at the first moment and the signal intensity corresponding to the target phase parameter does not meet the preset condition, determining an adjacent beam corresponding to the target beam; as an example, if the difference between the signal intensity of the target beam at the first time and the signal intensity corresponding to the target phase parameter is not within a preset range, for example, the difference between the signal intensity of the target beam at the first time and the signal intensity corresponding to the target phase parameter is not less than 3dBm, which indicates that the position of a signal emission source is changed and it is required to track the signal emission source, the adjacent beam corresponding to the target beam may be determined.
Wherein the region pointed by the adjacent beam is adjacent to the region pointed by the target beam. For example, if the region pointed by the target beam is the a region, and both the B region and the C region are adjacent to the a region, both the beam corresponding to the B region and the beam corresponding to the C region may be determined as the adjacent beams corresponding to the target beam.
It should be noted that, in one implementation, eight adjacent beams corresponding to the target beam may be determined, where the respective areas pointed by the eight adjacent beams and the area pointed by the target beam are in an adjacent relationship.
After determining the adjacent beams corresponding to the target beam, the signal strengths respectively corresponding to the adjacent beams may be respectively determined. Then, respectively determining the magnitude relationship between the signal strength of each adjacent beam and the signal strength of the target beam at the first time, if the signal strength corresponding to the adjacent beam is greater than the signal strength of the target beam at the first time, which indicates that the region pointed by the adjacent beam is a signal emission source and is more likely than the target beam, then the adjacent beam may be used as the target beam, and the step of determining the adjacent beam corresponding to the target beam is continuously performed until the signal strength of the adjacent beam is equal to or less than the signal strength of the target beam, it should be noted that if the signal strength corresponding to at least two adjacent beams is greater than the signal strength of the target beam at the first time, then the adjacent beam with the largest signal strength among the at least two adjacent beams may be used as the target beam, and continuously judging the magnitude relation between the signal intensity of each adjacent beam and the target beam at the first moment until the signal intensity of the target beam is greater than or equal to the signal intensity of the corresponding adjacent beam. If the signal intensity corresponding to the adjacent beams is less than or equal to the signal intensity of the target beam, it is indicated that the region pointed by the target beam is the position of the signal emission source, and then the tracking of the signal emission source is completed.
Compared with the prior art, the control method of the phased array antenna mainly comprises the steps of obtaining an antenna data table corresponding to the phased array antenna, current phase parameters of the phased array antenna and position information of a signal emission source, wherein the antenna data table comprises a plurality of groups of phase parameters; determining the signal intensity corresponding to each group of phase parameters, and adjusting the wave beam of the phased array antenna to be the target wave beam corresponding to the target phase parameter according to the target phase parameter with the maximum signal intensity in the multiple groups of phase parameters; and tracking the target beam until the target beam meets a preset condition. Therefore, the invention can adjust the wave beam of the phased array antenna through the current phase parameter of the phased array antenna acquired by the inertial navigation module to ensure that the wave beam can constantly point to a certain area, and can track the target wave beam according to the signal intensity no matter the attitude of the phased array antenna changes or the signal emission source moves, thereby ensuring that the wave beam of the phased array antenna can constantly point to the emission source and keeping the signal intensity to be maximum.
Fig. 3 shows a specific embodiment of the control of the phased array antenna according to the invention. The apparatus of this embodiment is a physical apparatus for executing the method of the above embodiment. The technical solution is essentially the same as that in the above embodiment, and the corresponding description in the above embodiment is also applicable to this embodiment. The device in this embodiment includes:
an obtaining unit 301, configured to obtain an antenna data table corresponding to a phased array antenna, a current phase parameter of the phased array antenna, and position information of a signal emission source, where the antenna data table includes multiple sets of phase parameters;
a determining unit 302, configured to determine, for each group of phase parameters, a signal strength corresponding to the group of phase parameters according to the group of phase parameters, a current phase parameter of the phased array antenna, and location information of a signal emission source;
an adjusting unit 303, configured to adjust a beam of the phased array antenna to a target beam corresponding to a target phase parameter according to the target phase parameter with the largest signal intensity among the multiple sets of phase parameters;
a tracking unit 304, configured to perform tracking processing on the target beam until the target beam meets a preset condition.
Optionally, the determining unit 302 is specifically configured to:
for each group of phase parameters, determining a rotation angle corresponding to the phased array antenna according to the group of phase parameters and the current phase parameter of the phased array antenna;
determining a wave beam corresponding to the group of phase parameters according to the rotation angle and the position information of the signal emission source;
and determining the signal intensity corresponding to the group of phase parameters according to the wave beam corresponding to the group of phase parameters.
Optionally, the rotation angle includes a rotation angle of a Z-axis, a rotation angle of an X-axis, and a rotation angle of a Y-axis, and the position information of the signal emission source includes an X-axis coordinate, a Y-axis coordinate, and a Z-axis coordinate of the signal emission source.
Optionally, the determining unit 302 is further specifically configured to:
determining a beam pointing angle theta and a beam phase angle phi according to the rotation angle and the position information of the signal emission source;
and determining the beam corresponding to the group of phase parameters according to the beam pointing angle theta and the beam phase angle phi.
Optionally, the determining unit 302 is further specifically configured to:
adjusting the wave beam of the phased array antenna to a wave beam corresponding to the group of phase parameters;
and detecting the signal intensity corresponding to the phased array antenna, and taking the signal intensity as the signal intensity corresponding to the group of phase parameters.
Optionally, the tracking unit 304 is specifically configured to:
detecting the signal strength of the target beam at a first time;
if the difference value between the signal intensity of the target beam at the first moment and the signal intensity corresponding to the target phase parameter does not meet the preset condition, determining an adjacent beam corresponding to the target beam;
determining the signal strength corresponding to the adjacent wave beams;
if the signal intensity corresponding to the adjacent beam is greater than the signal intensity of the target beam at the first time, the adjacent beam is used as the target beam, and the step of determining the adjacent beam corresponding to the target beam is continuously executed until the signal intensity of the adjacent beam is equal to or less than the signal intensity of the target beam.
Optionally, the region pointed by the adjacent beam is adjacent to the region pointed by the target beam.
Optionally, the phase parameter includes: yaw, pitch and roll angles.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects.
The embodiments of the present invention are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A method of controlling a phased array antenna, the method comprising:
acquiring an antenna data table corresponding to a phased array antenna, current phase parameters of the phased array antenna and position information of a signal emission source, wherein the antenna data table comprises a plurality of groups of phase parameters;
for each group of phase parameters, determining the signal strength corresponding to the group of phase parameters according to the group of phase parameters, the current phase parameters of the phased array antenna and the position information of a signal emission source;
according to the target phase parameter with the maximum signal intensity in the multiple groups of phase parameters, adjusting the wave beam of the phased array antenna to be the target wave beam corresponding to the target phase parameter;
and tracking the target beam until the target beam meets a preset condition.
2. The method of claim 1, wherein the determining, for each set of phase parameters, the signal strength corresponding to the set of phase parameters according to the set of phase parameters, the current phase parameters of the phased array antenna, and the location information of the signal transmission source comprises:
for each group of phase parameters, determining a rotation angle corresponding to the phased array antenna according to the group of phase parameters and the current phase parameter of the phased array antenna;
determining a wave beam corresponding to the group of phase parameters according to the rotation angle and the position information of the signal emission source;
and determining the signal intensity corresponding to the group of phase parameters according to the wave beam corresponding to the group of phase parameters.
3. The method of controlling a phased array antenna according to claim 2, wherein the rotation angle includes a rotation angle of a Z-axis, a rotation angle of an X-axis, and a rotation angle of a Y-axis, and the position information of the signal transmission source includes X-axis coordinates, Y-axis coordinates, and Z-axis coordinates of the signal transmission source.
4. The method of controlling a phased array antenna according to claim 2, wherein said determining the beams corresponding to the set of phase parameters based on the rotation angle and the location information of the signal transmission source comprises:
determining a beam pointing angle theta and a beam phase angle phi according to the rotation angle and the position information of the signal emission source;
and determining the beam corresponding to the group of phase parameters according to the beam pointing angle theta and the beam phase angle phi.
5. The method of controlling a phased array antenna of claim 2, wherein said determining the signal strength for the set of phase parameters based on the beam for the set of phase parameters comprises:
adjusting the wave beam of the phased array antenna to a wave beam corresponding to the group of phase parameters;
and detecting the signal intensity corresponding to the phased array antenna, and taking the signal intensity as the signal intensity corresponding to the group of phase parameters.
6. The method of controlling a phased array antenna according to any of claims 1 to 5, wherein the tracking of the target beam until the target beam satisfies a predetermined condition comprises:
detecting the signal strength of the target beam at a first time;
if the difference value between the signal intensity of the target beam at the first moment and the signal intensity corresponding to the target phase parameter does not meet the preset condition, determining an adjacent beam corresponding to the target beam;
determining the signal strength corresponding to the adjacent wave beams;
if the signal intensity corresponding to the adjacent beam is greater than the signal intensity of the target beam at the first time, the adjacent beam is used as the target beam, and the step of determining the adjacent beam corresponding to the target beam is continuously executed until the signal intensity of the adjacent beam is equal to or less than the signal intensity of the target beam.
7. The method of controlling a phased array antenna of claim 6, wherein the area pointed by said adjacent beam is adjacent to the area pointed by said target beam.
8. The method of controlling a phased array antenna according to any of claims 1 to 5, characterised in that the phase parameters comprise: yaw, pitch and roll angles.
9. An apparatus for controlling a phased array antenna, the apparatus comprising:
the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring an antenna data table corresponding to a phased array antenna, current phase parameters of the phased array antenna and position information of a signal emission source, and the antenna data table comprises a plurality of groups of phase parameters;
the determining unit is used for determining the signal strength corresponding to each group of phase parameters according to the group of phase parameters, the current phase parameters of the phased array antenna and the position information of a signal emission source;
the adjusting unit is used for adjusting the wave beam of the phased array antenna to be a target wave beam corresponding to the target phase parameter according to the target phase parameter with the maximum signal intensity in the multiple groups of phase parameters;
and the tracking unit is used for tracking the target beam until the target beam meets a preset condition.
10. A control system for a phased array antenna, the system comprising: the system comprises a processor, a storage module, an inertial navigation module, a data transmission module, a Field Programmable Gate Array (FPGA), a signal intensity detection module and a phased array antenna;
the processor is connected with the storage module and is used for acquiring an antenna data table corresponding to the phased array antenna stored in the storage module;
the processor is connected with the inertial navigation module and is used for acquiring the current phase parameters of the phased array antenna acquired by the inertial navigation module;
the processor is connected with the data transmission module and is used for acquiring the position information of the signal emission source acquired by the data transmission module;
the signal intensity detection module is connected with the processor and is used for acquiring the signal intensity corresponding to each group of phase parameters;
the processor is used for obtaining a target phase parameter with the maximum signal intensity from the multiple groups of phase parameters;
the FPGA is connected with the processor and is used for acquiring the target phase parameter and adjusting the wave beam of the phased array antenna to be a target wave beam corresponding to the target phase parameter;
the processor is further configured to perform tracking processing on the target beam until the target beam meets a preset condition.
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