CN114007187B - Information source direction judging method, device, system, equipment and readable storage medium - Google Patents

Information source direction judging method, device, system, equipment and readable storage medium Download PDF

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Publication number
CN114007187B
CN114007187B CN202111273921.1A CN202111273921A CN114007187B CN 114007187 B CN114007187 B CN 114007187B CN 202111273921 A CN202111273921 A CN 202111273921A CN 114007187 B CN114007187 B CN 114007187B
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signal
information source
antenna
receiving
source
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CN114007187A (en
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赵瑞祥
夏天琪
尹作彪
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Blue Chuangyuan Beijing Technology Co ltd
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Blue Chuangyuan Beijing Technology Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • G01S3/48—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/025—Services making use of location information using location based information parameters
    • H04W4/026—Services making use of location information using location based information parameters using orientation information, e.g. compass
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

The present application relates to the field of directional technologies, and in particular, to a method, an apparatus, a system, a device, and a readable storage medium for determining a direction of a source. The cell direction judging method comprises the steps of receiving a first signal, wherein the first signal comprises a source signal sent by a source received by a first array element; receiving a second signal, wherein the second signal comprises the information source signal received by a second array element; obtaining the information source direction according to the first signal and the second signal; the application reduces hardware cost and system complexity by adopting a single T/R channel to receive signals; meanwhile, the Bluetooth standard protocol is adopted for positioning, so that the information source has wide applicability, can be adapted to the current universal Bluetooth 4.2 chip and Bluetooth 5.0 and 5.1 chips, and is generally applicable to terminals such as mobile phones, intelligent hardware and the like.

Description

Information source direction judging method, device, system, equipment and readable storage medium
Technical Field
The present application relates to the field of directional technologies, and in particular, to a method, an apparatus, a system, a device, and a readable storage medium for determining a direction of a source.
Background
For various reasons, the conventional single-channel information source direction judging system based on the antenna array is generally low in accuracy. Therefore, how to improve the accuracy and precision of the source paying-off judgment becomes a technical problem to be solved in the field.
Disclosure of Invention
The present application aims to provide a method, a device, a system, a device and a readable storage medium for determining a direction of a source, so as to solve the above problems.
In order to achieve the above object, the embodiment of the present application provides the following technical solutions:
in a first aspect, an embodiment of the present application provides a method for determining a direction of a source, where the method includes:
receiving a first signal, wherein the first signal comprises a source signal sent by a source received by a first array element;
receiving a second signal, wherein the second signal comprises the information source signal received by a second array element;
obtaining the information source direction according to the first signal and the second signal;
wherein the source signal comprises a preset data sequence.
Optionally, after receiving the second signal, the method further includes:
and sequentially receiving the information source signals received by other antenna elements, wherein the other antenna elements comprise preset antenna elements for receiving the information source signals except the first array element and the second array element, and the other antenna elements comprise at least one antenna element.
Optionally, after the signal source signals received by the remaining antenna elements are sequentially received, the method further includes:
and sequentially receiving the information source signals received by each antenna array element in the preset antenna array elements for receiving the information source signals in the next round.
Optionally, before receiving the first signal, the method includes:
the configuration reference antenna specifically comprises: selecting one antenna array element from the antenna array elements for receiving the information source signals to be configured as the reference antenna;
and configuring an antenna which is not configured as a reference antenna in the antenna array elements for receiving the information source signals as a non-reference antenna.
Optionally, the duration of receiving the signal source by the reference antenna is longer than the duration of receiving the signal source by the non-reference antenna; and each non-reference antenna receives the source signals for equal duration.
Optionally, before the receiving the first signal, the method further includes:
generating an antenna array element switching command; the antenna array element switching command comprises an order of switching on the antenna array elements and a switching on time of each antenna array element;
and controlling the antenna array element switching device to switch the antenna array elements according to the antenna array element switching command.
Optionally, the generating an antenna element switching command includes:
and generating the antenna array element switching command according to the length of the positioning data and the number of the antenna array elements to be received.
Optionally, after receiving the first signal, the method further includes:
identifying a positioning frame of the source signal;
identifying the preset data sequence in the positioning frame, and starting timing when the moment of identifying the preset data sequence;
and when the switching-on time length of the first array element is equal to the switching-on time length of the first array element in a preset antenna array element switching command, switching is executed.
Optionally, after receiving the second signal, the method further includes:
starting timing at the moment when the second array element starts to receive the information source signal;
and when the switching-on time length of the second array element is equal to the switching-on time length of the second array element in a preset antenna array element switching command, switching is executed.
Optionally, the calculating, according to the first signal and the second signal, the source direction includes:
obtaining a frequency difference parameter of the information source signal according to the information source signal received by the reference antenna;
Obtaining the information source direction according to the frequency difference parameter and the actual phases of the information source signals respectively received by the two adjacent antenna array elements; the two adjacent antenna array elements are two antenna array elements which receive the information source signals successively.
Optionally, the obtaining the source direction according to the frequency difference parameter and the actual phases of the source signals received by the two adjacent antenna array elements respectively further includes:
obtaining a first phase difference according to the frequency difference parameter and the time interval between two adjacent antenna array elements for receiving the information source signals;
obtaining a second phase difference according to the actual phases of the information source signals respectively received by two adjacent antenna array elements;
obtaining a third phase difference according to the second phase difference and the first phase difference;
and obtaining the information source direction according to the third phase difference.
Optionally, the calculating, according to the first signal and the second signal, the source direction further includes:
and respectively intercepting intermediate data of the first signal and intermediate data of the second signal as effective data for calculation, wherein the intermediate data is a data segment which is not affected by antenna switching.
Optionally, the preset data sequence includes a data sequence of 0 and/or a data sequence of 1.
Optionally, the source signal includes a data sequence of 0 continuously repeated periodically and/or a data sequence of 1 continuously repeated periodically.
Optionally, the distance between the first array element and the second array element is less than or equal to one half of a wavelength, and the wavelength is a wavelength of the source signal in air.
Optionally, the duration of the first array element receiving the information source signal is an integer multiple of a sampling period of the chip; and the duration of the second array element for receiving the information source signal is an integral multiple of the sampling period of the chip.
In a second aspect, an embodiment of the present application provides an apparatus for determining a direction of a source, including:
the first receiving module is used for receiving a first signal, wherein the first signal comprises a signal source signal sent by a signal source received by a first array element;
the second receiving module is used for receiving a second signal, and the second signal comprises the information source signal received by a second array element;
the first calculation module is used for obtaining the information source direction according to the first signal and the second signal;
Wherein the source signal comprises a preset data sequence.
Optionally, the source direction judging device further includes:
the third receiving module is configured to sequentially receive the source signals received by other antenna elements, where the other antenna elements include preset antenna elements that receive the source signals except the first element and the second element, and the other antenna elements include at least one antenna element.
Optionally, the source direction judging device further includes:
and the fourth receiving module is used for sequentially receiving the preset information source signals received by each antenna array element in the antenna array elements for receiving the information source signals in the next round.
Optionally, the source direction judging device further includes:
the first configuration module is configured to configure a reference antenna, where the reference antenna specifically includes: selecting one antenna array element from the antenna array elements for receiving the information source signals to be configured as the reference antenna;
and the second configuration module is used for configuring an antenna which is not configured as a reference antenna in the antenna array elements for receiving the information source signals as a non-reference antenna.
Optionally, the duration of receiving the signal source by the reference antenna is longer than the duration of receiving the signal source by the non-reference antenna; and each non-reference antenna receives the source signals for equal duration.
Optionally, the source direction judging device further includes:
the generating module is used for generating an antenna array element switching command; the antenna array element switching command comprises an order of switching on the antenna array elements and a switching on time of each antenna array element;
and the first switching module is used for controlling the antenna element switching device to switch the antenna elements according to the antenna element switching command.
Optionally, the generating module includes:
and the generating unit is used for generating the antenna array element switching command according to the length of the positioning data and the number of the antenna array elements to be received.
Optionally, the source direction judging device further includes:
the first identification module is used for identifying the positioning frame of the information source signal;
the second identification module is used for identifying the preset data sequence in the positioning frame, and starting timing when the moment of identifying the preset data sequence is identified;
and the second switching module is used for executing switching when the switching-on time length of the first array element is equal to the switching-on time length of the first array element in a preset antenna array element switching command.
Optionally, the source direction judging device further includes:
The first timing module is used for starting timing at the moment when the second array element starts to receive the information source signal;
and the third switching module is used for executing switching when the switching-on time length of the second array element is equal to the switching-on time length of the second array element in a preset antenna array element switching command.
Optionally, the first computing module includes:
the first calculation unit is used for obtaining the frequency difference parameter of the information source signal according to the information source signal received by the reference antenna;
the second calculation unit is used for obtaining the information source direction according to the frequency difference parameter and the actual phases of the information source signals respectively received by the two adjacent antenna array elements; the two adjacent antenna array elements are two antenna array elements which receive the information source signals successively.
Optionally, the second computing unit includes:
a first sub-calculation unit, configured to obtain a first phase difference according to the frequency difference parameter and a time interval between two adjacent antenna array elements for receiving the source signal;
a second sub-calculation unit, configured to obtain a second phase difference according to actual phases of the source signals received by two adjacent antenna elements respectively;
A third sub-calculation unit, configured to obtain a third phase difference according to the second phase difference and the first phase difference;
and the fourth sub-calculation unit is used for obtaining the information source direction according to the third phase difference.
Optionally, the first computing module further includes:
and the third calculation unit is used for respectively intercepting the intermediate data of the first signal and the intermediate data of the second signal as effective data for calculation, wherein the intermediate data is a data segment which is not affected by antenna switching.
Optionally, the preset data sequence includes a data sequence of 0 and/or a data sequence of 1.
Optionally, the source signal includes a data sequence of 0 continuously repeated periodically and/or a data sequence of 1 continuously repeated periodically.
Optionally, the distance between the first array element and the second array element is less than or equal to one half of a wavelength, and the wavelength is a wavelength of the source signal in air.
Optionally, the duration of the first array element receiving the information source signal is an integer multiple of a sampling period of the chip; and the duration of the second array element for receiving the information source signal is an integral multiple of the sampling period of the chip.
In a third aspect, an embodiment of the present application provides a source direction determining system, including:
the antenna array comprises a first array element and a second array element;
and the programmable logic device is used for executing the steps of the information source direction judging method.
Optionally, the system further comprises:
and the antenna array element switching device is used for switching the antenna array elements for receiving the information source signals sent by the information source according to the control signals sent by the programmable logic device.
Optionally, the antenna array further includes:
the other antenna elements comprise antenna elements which are arranged outside the first element and the second element and are used for receiving the information source signals in a preset mode, and the other antenna elements comprise at least one antenna element.
Optionally, the distance between the first array element and the second array element is less than or equal to one half of a wavelength, and the wavelength is a wavelength of the source signal in air.
In a fourth aspect, an embodiment of the present application provides a source direction determining apparatus, including:
a first memory for storing a computer program;
And the first processor is used for realizing the steps of the information source direction judging method when executing the computer program.
In a fifth aspect, an embodiment of the present application provides a readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described source direction determination method.
In a sixth aspect, an embodiment of the present application provides a method for sending a source signal, where the method includes:
generating a signal source signal, wherein the signal source signal comprises a preset data sequence;
and transmitting the information source signal, wherein the information source signal is used for being received by a first array element and a second array element in sequence, the information source signal is received by the first array element to obtain a first signal, the information source signal is received by the second array element to obtain a second signal, and the first signal and the second signal are used for calculating the direction of the information source.
Optionally, the source signal is further configured to be received by other antenna elements, where the other antenna elements include a preset antenna element for receiving the source signal, except the first element and the second element, and at least one antenna element is included in the other antenna elements.
Optionally, the duration of receiving the information source signal by the second array element is equal to the duration of receiving the information source signal by each of the rest of the antenna array elements.
Optionally, the source signal is further used for being sequentially received by each antenna element in the antenna elements for receiving the source signal in the next round.
Optionally, the positioning data includes a data sequence of 0 and/or a data sequence of 1.
Optionally, the source signal includes repeated data sequences of consecutive 0 and/or periodically repeated data sequences of consecutive 1.
Optionally, the distance between the first array element and the second array element is less than or equal to one half of a wavelength, and the wavelength is a wavelength of the source signal in air.
Optionally, the duration of the first array element receiving the information source signal is an integer multiple of a sampling period of the chip; and the duration of the second array element for receiving the information source signal is an integral multiple of the sampling period of the chip.
In a seventh aspect, an embodiment of the present application provides a source signal transmitting apparatus, including:
the system comprises a source signal generation module, a data processing module and a data processing module, wherein the source signal generation module is used for generating a source signal which comprises a preset data sequence;
The information source signal sending module is used for sending the information source signal, the information source signal is used for being received by a first array element and a second array element in sequence, the information source signal is received by the first array element to obtain a first signal, the information source signal is received by the second array element to obtain a second signal, and the first signal and the second signal are used for calculating the direction of the information source.
Optionally, the source signal is further configured to be received by other antenna elements, where the other antenna elements include a preset antenna element for receiving the source signal, except the first element and the second element, and at least one antenna element is included in the other antenna elements.
Optionally, the duration of receiving the information source signal by the second array element is equal to the duration of receiving the information source signal by each of the rest of the antenna array elements.
Optionally, the source signal is further used for being sequentially received by each antenna element in the antenna elements for receiving the source signal in the next round.
Optionally, the positioning data includes a data sequence of 0 and/or a data sequence of 1.
Optionally, the source signal includes a data sequence of 0 continuously repeated periodically and/or a data sequence of 1 continuously repeated periodically.
Optionally, the distance between the first array element and the second array element is less than or equal to one half of a wavelength, and the wavelength is a wavelength of the source signal in air.
Optionally, the duration of the first array element receiving the information source signal is an integer multiple of a sampling period of the chip; and the duration of the second array element for receiving the information source signal is an integral multiple of the sampling period of the chip.
In an eighth aspect, an embodiment of the present application provides a source signal transmission apparatus, including:
a second memory for storing a computer program;
and the second processor is used for realizing the steps of the information source signal sending method when executing the computer program.
In a ninth aspect, an embodiment of the present application provides a readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the above-described source signaling method.
The beneficial effects of the application are as follows:
the application reduces hardware cost and system complexity by adopting a single T/R channel to receive signals; meanwhile, the Bluetooth standard protocol is adopted for positioning, so that the information source has wide applicability, can be adapted to the current universal Bluetooth 4.2 chip and Bluetooth 5.0 and 5.1 chips, and is generally applicable to terminals such as mobile phones, intelligent hardware and the like.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for judging the direction of a source provided in an embodiment of the present application;
FIG. 2 is a block diagram of a source direction judging device according to an embodiment of the present application;
FIG. 3 is a block diagram of a source direction determination system according to an embodiment of the present application;
fig. 4 is a block diagram of a source direction judging device according to an embodiment of the present application;
FIG. 5 is a flowchart of a method for transmitting a source signal according to an embodiment of the present application;
FIG. 6 is a block diagram of a source signal transmitting apparatus according to an embodiment of the present application;
fig. 7 is a block diagram of a source signal transmission apparatus according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of an antenna array for receiving a source signal according to an embodiment of the present application;
fig. 9 is a schematic diagram of an antenna array capable of implementing the cell direction determining method according to the present application.
The marks in the figure: 310. an antenna array; 320. a programmable logic device; 330. an antenna element switching device 330.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals or letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
Examples
As shown in fig. 1, a flowchart of a source direction determination method provided in the present embodiment is shown, and the source direction determination method includes step S110, step S120, and step S130.
S110, receiving a first signal, wherein the first signal comprises a source signal sent by a source received by a first array element;
wherein the first signal is a cell signal received by an antenna element of the source signal received by a first one of the receiving antennas. The source signal includes a predetermined data sequence. The information source signal comprises a positioning frame, the information source transmitting end transmits the positioning frame according to a certain frequency, and the positioning frame can be based on a broadcast frame in the Bluetooth 4.2 protocol or a custom protocol. The method can be applied to wireless communication processes of any communication protocol and frequency band, and is not limited to Bluetooth protocol and 2.4GHz frequency band.
The positioning frame field comprises a preamble field, an address field, a user data unit field and a check field, wherein the user data unit field may further comprise: transmitting end information field, check field and positioning data field.
The positioning data is any known data sequence, and may be a data sequence with continuous 0 and/or a pre-modulation sequence with continuous 1 after the data is whitened and randomly denoised, or may be a data sequence with continuous 0 and/or a data sequence with continuous 1, which are periodically repeated, or may be a data sequence with any content. "known" represents all data content of a known positioning data field at the signal receiving and resolving end for a cooperative positioning scenario.
S120, receiving a second signal, wherein the second signal comprises a signal source signal received by a second array element;
the second signal is a cell signal received by an antenna element that receives the source signal next. After the first array element receives the source signal, the first array element is switched to the second array element to continuously receive the cell signal.
And S130, obtaining the information source direction according to the first signal and the second signal.
Since all data contents of the positioning data field in the information source signal are known, the signal phase of the first signal or the second signal at any moment can be calculated according to the signal propagation theory, compared with the signal phase actually received by the antenna, the initial phase difference and the phase difference change slope can be calculated, so that the clock frequency difference parameter can be calculated, the phase drift problem can be solved, and the actual signal phase of the antenna at any moment can be obtained according to the initial phase difference. Therefore, the signal sampling results of other antennas can be differenced with the actual signal phase of the reference array element at the corresponding moment, and the information source direction is calculated.
The information source direction calculation method can calculate various parameters such as information source number, information source direction angle, polarization parameters and the like according to multiple information source direction calculation algorithms such as MUSIC, ESPRIT, signal subspace method and the like in the traditional array signal processing, and output after obtaining information source direction calculation results.
In the cell direction calculation method in the embodiment, the single T/R channel is adopted to receive signals, so that the hardware cost and the system complexity are reduced; meanwhile, the Bluetooth standard protocol is adopted for positioning, so that the information source has wide applicability, can be adapted to the current universal Bluetooth 4.2 chip and Bluetooth 5.0 and 5.1 chips, is widely applicable to terminals such as mobile phones and intelligent hardware, and has strong compatibility.
Optionally, in order to improve the accuracy of the source direction determination, step S121 may be further included between step S120 and step S130.
S121, sequentially receiving information source signals received by other antenna elements, wherein the other antenna elements comprise preset antenna elements for receiving information source signals except the first array element and the second array element, and the other antenna elements comprise at least one antenna element.
As shown in fig. 8, which shows a schematic structure of an antenna array 310 for receiving a source signal, if the feed point 0 receives the source signal first in the antenna array elements for receiving the source signal, after the feed point 0 receives the source signal, it switches to the feed point 1 to receive the source signal, and then switches sequentially, for example, the switching of the antenna array elements may be performed according to the sequence of 0-1-2-3- … -11.
Optionally, step S122 may be further included between step S121 and step S130.
S122, sequentially receiving the information source signals received by each antenna array element in the antenna array elements which are preset in the next round.
To further improve the accuracy of the source direction determination, multiple antenna switching may be performed after all antenna elements in the antenna array 310 have received a single pass of the source signal. The accuracy of the information source direction judgment can be improved by switching the antenna for receiving the information source signals in multiple rounds.
Optionally, step S101 and step S102 may be further included before step S110.
S101, configuring a reference antenna, wherein the configuring of the reference antenna specifically comprises the following steps: selecting one antenna array element from antenna array elements for receiving information source signals to be configured as a reference antenna;
in the antenna switching cycle, a reference antenna is determined, and the rest antennas are non-reference antennas, as in fig. 8, if the feed point 0 is the reference antenna, the rest feed points are all the cost reference antennas.
S102, configuring an antenna which is not configured as a reference antenna as a non-reference antenna in antenna array elements for receiving the source signals.
After the reference antenna is determined, the time length of the reference antenna for receiving the source signal is longer than that of the non-reference antenna for receiving the source signal; each non-reference antenna receives a source signal for equal duration. The reference antenna receives the source signal for a little longer time, which is favorable for estimating the clock, and the time length of the reference antenna receiving the source signal is recommended to be more than 3 times, can be 4 times, and if 2 times, the performance is slightly worse.
Optionally, step S103 and step S104 may be further included before step S110.
S103, generating an antenna array element switching command; the antenna array element switching command comprises an order of switching on the antenna array elements and a switching on time of each antenna array element;
in order for each antenna element to receive the source signal in order according to a predetermined time, it is necessary to determine which antenna element in the antenna array receives the source signal and the length of time each antenna element receives the source signal before receiving the source signal.
And S104, controlling the antenna array element switching device to switch the antenna array elements according to the antenna array element switching command.
When switching is performed, the programmable logic device 320 outputs a digital signal according to a certain rule; the radio frequency switch activates different feed points in the antenna array according to the digital signal, so that only one array element is switched on at the same time; at this time, the radio frequency receiving unit can collect analog signal data corresponding to the antenna feed point; the analog signals are converted into IQ digital signals through an A/D acquisition, processing and storage unit; the microcontroller is used for controlling the radio frequency switch to rapidly turn over each antenna feed point, so that signal data received by each antenna array element at different moments can be acquired.
Optionally, step S103 may further include step S1031.
S1031, generating an antenna array element switching command according to the length of the positioning data and the number of the antenna array elements to receive the positioning data.
In order to make the duration of each antenna array element receiving the source signal be an integer multiple of the chip sampling period, an antenna switching command needs to be generated according to the length of the positioning data and the number of the antenna array elements receiving the source signal.
As shown in fig. 8, the signal sampling time interval of the radio frequency receiving unit is 500ns, the signal source is in a 2.4G bluetooth BLE1M broadcast mode, the data transmission time of each bit is 1us, the positioning data length is 16byte, the data transmission time is 128us, the feed point 0 is used as a reference antenna, the switching time interval of other antenna array elements is set to 3us, the switching time interval of the reference antenna array elements is set to 9us, and each positioning frame can completely round for 3 antenna switching periods.
Optionally, between step S110 and step S120, step S1101, step S1102, and step S1103 may be further included.
S1101, identifying a positioning frame of a source signal; since the positioning frame includes known positioning data, the positioning frame needs to be identified first.
S1102, identifying a preset data sequence in a positioning frame, and starting timing when the preset data sequence is identified;
And when the positioning frame is not identified, the switching timing is not performed, and the cycle of round patrol is shortened.
And S1103, when the on-time length of the first array element is equal to the on-time length of the first array element in a preset antenna array element switching command, switching is performed.
Optionally, step S123 and step S124 may be further included after step S120.
S123, starting timing at the moment when the second array element starts to receive the source signal;
and S124, when the on-time of the second array element is equal to the on-time of the second array element in the preset antenna array element switching command, switching is performed.
Optionally, step S130 may further include step S131 and step S132.
S131, obtaining a frequency difference parameter of the information source signal according to the information source signal received by the reference antenna;
s132, obtaining an information source direction according to the frequency difference parameter and the actual phases of information source signals received by two adjacent antenna array elements respectively; the adjacent two antenna array elements are two antenna array elements which receive the source signals successively.
Optionally, step S132 may further include step S1321, step S1322, step S1323 and step S1324.
S1321, obtaining a first phase difference according to a frequency difference parameter and a time interval of receiving source signals by two adjacent antenna array elements;
s1322, obtaining a second phase difference according to the actual phases of the information source signals received by two adjacent antenna array elements respectively;
s1323, obtaining a third phase difference according to the second phase difference and the first phase difference;
and S1324, obtaining the information source direction according to the third phase difference.
Optionally, step S130 may further include step S133.
And S133, respectively intercepting intermediate data of the first signal and intermediate data of the second signal as effective data for calculation, wherein the intermediate data is a data segment which is not affected by antenna switching.
Step S133 is a digital signal preprocessing process, which may be performed at the receiver terminal or may be performed by uploading to a server via a wired or wireless digital transmission link.
Because the length of the antenna switching period is only related to the sampling interval and the phase distortion caused by the antenna switching moment, the signal amplitude and the phase distortion can be caused when the radio frequency switch is switched, and therefore only a few sampling points in the middle of each switching are intercepted and used as effective data uploading. The antenna switching period can be shortened, the efficiency is improved, and the robustness of the positioning result is enhanced.
Referring to fig. 2, a block diagram of a source direction determining apparatus according to an embodiment of the present application is shown, where the apparatus includes a first receiving module 210, a second receiving module 220, and a first calculating module 230.
A first receiving module 210, configured to receive a first signal, where the first signal includes a source signal sent by a source received by a first array element;
a second receiving module 220, configured to receive a second signal, where the second signal includes a source signal received by a second array element;
a first calculation module 230, configured to obtain a source direction according to the first signal and the second signal;
the information source signal comprises a preset data sequence.
Optionally, the source direction determining device may further include a third receiving module 240.
The third receiving module 240 is configured to sequentially receive the source signals received by the remaining antenna elements, where the remaining antenna elements include antenna elements other than the first and second antenna elements that are preset to receive the source signals, and the remaining antenna elements include at least one antenna element.
Optionally, the source direction determining device may further include a fourth receiving module 250.
The fourth receiving module 250 is configured to sequentially receive, from among the antenna elements preset in the next round, the source signals received by each antenna element.
Optionally, the source direction determining device may further include a first configuration module 260 and a second configuration module 270.
The first configuration module 260 is configured to configure a reference antenna, where the configuring reference antenna specifically includes: selecting one antenna array element from antenna array elements for receiving information source signals to be configured as a reference antenna;
the second configuration module 270 is configured to configure an antenna that is not configured as a reference antenna as a non-reference antenna in antenna elements that receive the source signal.
Optionally, the duration of receiving the source signal by the reference antenna is longer than the duration of receiving the source signal by the non-reference antenna; each non-reference antenna receives a source signal for equal duration.
Optionally, the source direction determining device may further include a generating module 280 and a first switching module 290.
A generating module 280, configured to generate an antenna element switching command; the antenna array element switching command comprises an order of switching on the antenna array elements and a switching on time of each antenna array element;
the first switching module 290 is configured to control the antenna element switching device to perform antenna element switching according to the antenna element switching command.
Optionally, the generating module 280 may further include a generating unit 281.
The generating unit 281 is configured to generate an antenna element switching command according to the length of the positioning data and the number of antenna elements to receive the positioning data.
Optionally, the source direction determining device may further include a first identification module 2100, a second identification module 2110, and a second switching module 2120.
A first identifying module 2100 for identifying a positioning frame of a source signal;
a second identifying module 2110, configured to identify a preset data sequence in the positioning frame, and start timing when a moment of identifying the preset data sequence is identified;
the second switching module 2120 is configured to perform switching when the on duration of the first element is equal to the on duration of the first element in the preset antenna element switching command.
Optionally, the source direction determining device may further include a first timing module 2130 and a third switching module 2140.
A first timing module 2130, configured to start timing at a time when the second array element starts receiving the source signal;
the third switching module 2140 is configured to perform switching when the on duration of the second array element is equal to the on duration of the second array element in the preset antenna array element switching command.
Optionally, the first computing module 230 may further include a first computing unit 231, a second computing unit 232, a third computing unit 233, a fourth computing unit 234, and a fifth computing unit 235.
A first calculating unit 231, configured to obtain a frequency difference parameter of the source signal according to the source signal received by the reference antenna;
A second calculating unit 232, configured to obtain a source direction according to the frequency difference parameter and actual phases of source signals received by two adjacent antenna elements respectively; the adjacent two antenna array elements are two antenna array elements which receive the source signals successively.
Optionally, the second computing unit 232 may further include a first sub-computing unit 2321, a second sub-computing unit 2322, a third sub-computing unit 2323, and a fourth sub-computing unit 2324.
A first sub-calculating unit 2321, configured to obtain a first phase difference according to the frequency difference parameter and a time interval between two adjacent antenna array elements for receiving the source signal;
a second sub-calculating unit 2322, configured to obtain a second phase difference according to actual phases of the source signals received by two adjacent antenna array elements respectively;
a third sub-calculation unit 2323, configured to obtain a third phase difference according to the second phase difference and the first phase difference;
the fourth sub-calculation unit 2324 is configured to obtain the source direction according to the third phase difference.
Optionally, the first computing module 230 may further include a third computing unit 233.
The third calculating unit 233 is configured to intercept intermediate data of the first signal and intermediate data of the second signal, respectively, as effective data, and calculate the effective data, where the intermediate data is a data segment that is not affected by antenna switching.
Optionally, the preset data sequence includes a data sequence of 0 and/or a data sequence of 1.
Optionally, the source signal comprises a periodically repeated sequence of data of consecutive 0 s and/or a periodically repeated sequence of data of consecutive 1 s.
Optionally, the distance between the first array element and the second array element is less than or equal to one half of the wavelength, and the wavelength is the wavelength of the source signal in the air.
Optionally, the duration of the first array element receiving the source signal is an integer multiple of the sampling period of the chip; the duration of the second array element for receiving the source signal is an integer multiple of the sampling period of the chip.
Referring to fig. 3, a block diagram of a source direction determining system according to an embodiment of the present application is shown, where the system includes an antenna array 310 and a programmable logic device 320.
The antenna array 310 includes a first array element and a second array element;
the programmable logic device 320 is configured to perform the steps of the source direction determination method described above.
Optionally, the system further includes an antenna element switching device 330;
the antenna array element switching device 330 switches the antenna array element receiving the source signal sent by the source according to the control signal sent by the programmable logic device.
Optionally, the antenna array 310 may further include remaining antenna elements.
The other antenna elements comprise antenna elements which are except the first element and the second element and are used for receiving the information source signals in a preset mode, and the other antenna elements comprise at least one antenna element.
The antenna array 310 is a two-dimensional plane with N antenna elements distributed thereon, where N is an integer greater than 2, as shown in fig. 9. In fig. 9, 6 antenna arrays are shown, which can implement the cell direction determining method in the present application, but the method can also be applied to the occasions of different configurations, different numbers of array elements and different polarized antennas, and not only dual polarization, but also single polarization, tri-polarization or multi-polarization electromagnetic sensor arrays.
In the antenna array 310, the array element pitches are not required to be equal, but it is satisfied that the adjacent array element pitches are not greater than one half wavelength, and the wavelength is the wavelength of the source signal in the air. And the angles of rotation of all array elements are known. A certain array element in the array is selected as a reference array element, typically an array element near the center of the array.
As shown in fig. 4, which shows a block diagram of a source direction determining apparatus provided in an embodiment of the present application, the source direction determining apparatus 400 includes a first processor 401 and a first memory 402. The source direction determination device 400 may also include one or more of a first multimedia component 403, a first input/output (I/O) interface 404, and a first communication component 405.
The first processor 401 is configured to control the overall operation of the source direction determining apparatus 400, so as to complete all or part of the steps in the source direction determining method described above. The first memory 402 is used to store various types of data to support operation of the source direction determination device 400, which may include, for example, commands for any application or method operating on the source direction determination device 400, as well as application-related data such as contact data, messages, pictures, audio, video, and the like. The first Memory 402 may be implemented by any type or combination of volatile or non-volatile Memory devices, such as static random access Memory (Static Random Access Memory, SRAM for short), electrically erasable programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EPROM for short), programmable Read-Only Memory (Programmable Read-Only Memory, PROM for short), read-Only Memory (ROM for short), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia component 403 may include a screen and an audio component. Wherein the screen may be, for example, a touch screen, the audio component being for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the first memory 402 or transmitted through the first communication component 405. The audio component may further comprise at least one speaker for outputting audio signals. The first I/O interface 404 provides an interface between the first processor 401 and other interface modules, which may be a keyboard, a mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The first communication component 405 is configured to perform wired or wireless communication between the source direction determining device 400 and other devices. Wireless communication, such as Wi-F i, bluetooth, near field communication (Near FieldCommunication, NFC for short), 2G, 3G or 4G, or a combination of one or more thereof, the respective first communication component 405 may thus comprise: wi-Fi module, bluetooth module, NFC module.
In an exemplary embodiment, the source direction determining device 400 may be implemented by one or more application specific integrated circuits (Application Specific Integrated Circuit, abbreviated as ASIC), digital signal processor (DigitalSignal Processor, abbreviated as DSP), digital signal processing device (DigitalSignal Processing Device, abbreviated as DSPD), programmable logic device (Programmable Logic Device, abbreviated as PLD), field programmable gate array (Field Programmable Gate Array, abbreviated as FPGA), controller, microcontroller, microprocessor, or other electronic component for performing the source direction determining method described above.
In another exemplary embodiment, a computer readable storage medium is also provided that includes program instructions that, when executed by a processor, implement the steps of the source direction determination method described above. For example, the computer readable storage medium may be the first memory 402 including the program commands described above, which are executable by the first processor 401 of the source direction determining device 400 to perform the source direction determining method described above.
Corresponding to the above embodiment of the source direction determining method, a readable storage medium is also provided in this embodiment, and a readable storage medium described below and the source direction determining method described above may be referred to correspondingly.
A readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the source direction determination method embodiment described above.
The readable storage medium may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, and the like.
As shown in fig. 5, a flowchart of a source signaling method is shown, which includes step S510 and step S520.
S510, generating a signal source signal, wherein the signal source signal comprises a preset data sequence;
and S520, transmitting a signal source signal, wherein the signal source signal is used for being received by the first array element and the second array element in sequence, the signal source signal is received by the first array element to obtain a first signal, the signal source signal is received by the second array element to obtain a second signal, and the first signal and the second signal are used for calculating the direction of the signal source.
Optionally, the source signal is further received by other antenna elements, where the other antenna elements include a preset antenna element for receiving the source signal, and the other antenna elements include at least one antenna element.
Optionally, the duration of receiving the source signal by the second array element is equal to the duration of receiving the source signal by each of the remaining antenna array elements.
Optionally, the source signal is further used for being received by each antenna element in the antenna elements preset in the next round for receiving the source signal.
Optionally, the positioning data comprises a sequence of data consecutively 0 and/or a sequence of data all 1 s.
Optionally, the source signal comprises a repeated sequence of data consecutively 0 and/or a periodically repeated sequence of data consecutively 1.
Optionally, the distance between the first array element and the second array element is less than or equal to one half of the wavelength, and the wavelength is the wavelength of the source signal in the air.
Optionally, the duration of the first array element receiving the source signal is an integer multiple of the sampling period of the chip; the duration of the second array element for receiving the source signal is an integer multiple of the sampling period of the chip.
Referring to fig. 6, a block diagram of a source signal transmitting apparatus according to an embodiment of the present application is shown, where the apparatus includes a source signal generating module 610 and a source signal transmitting module 620.
The source signal generating module 610 is configured to generate a source signal, where the source signal includes a preset data sequence;
The source signal sending module 620 is configured to send a source signal, where the source signal is used to be received by the first array element and the second array element in sequence, and after the source signal is received by the first array element, a first signal is obtained, and after the source signal is received by the second array element, a second signal is obtained, where the first signal and the second signal are used to calculate a direction of the source.
Optionally, the source signal is further received by other antenna elements, where the other antenna elements include a preset antenna element for receiving the source signal, and the other antenna elements include at least one antenna element.
Optionally, the duration of receiving the source signal by the second array element is equal to the duration of receiving the source signal by each of the remaining antenna array elements.
Optionally, the source signal is further used for being received by each antenna element in the antenna elements preset in the next round for receiving the source signal.
Optionally, the positioning data comprises a sequence of data consecutively 0 and/or a sequence of data all 1 s.
Optionally, the source signal comprises a periodically repeated sequence of data of consecutive 0 s and/or a periodically repeated sequence of data of consecutive 1 s.
Optionally, the distance between the first array element and the second array element is less than or equal to one half of the wavelength, and the wavelength is the wavelength of the source signal in the air.
Optionally, the duration of the first array element receiving the source signal is an integer multiple of the sampling period of the chip; the duration of the second array element for receiving the source signal is an integer multiple of the sampling period of the chip.
As shown in fig. 7, which shows a block diagram of a source signaling device 700 provided in an embodiment of the present application, the source signaling device 700 includes a second processor 701 and a second memory 702. The source signaling device 700 may also include one or more of a second multimedia component 703, a second input/output (I/O) interface 704, and a second communication component 705.
The second processor 701 is configured to control the overall operation of the source signaling device 700, so as to complete all or part of the steps in the source signaling method described above. The second memory 702 is used to store various types of data to support operation at the source signaling device 700, which may include, for example, commands for any application or method operating on the source signaling device 700, as well as application-related data, such as contact data, messages, pictures, audio, video, and the like. The second Memory 702 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as static random access Memory (Static Random Access Memory, SRAM for short), electrically erasable programmable Read-Only Memory (Electrically Erasable Programmable Read-Only Memory, EPROM for short), programmable Read-Only Memory (Programmable Read-Only Memory, PROM for short), read-Only Memory (ROM for short), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia component 703 can include a screen and an audio component. Wherein the screen may be, for example, a touch screen, the audio component being for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may be further stored in the second memory 702 or transmitted through the second communication component 705. The audio component may further comprise at least one speaker for outputting audio signals. The second I/O interface 704 provides an interface between the second processor 701 and other interface modules, which may be a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The second communication component 705 is configured to perform wired or wireless communication between the source signaling device 700 and other devices. Wireless communication, such as Wi-Fi, bluetooth, near field communication (Near FieldCommunication, NFC for short), 2G, 3G or 4G, or a combination of one or more thereof, the respective second communication component 705 may thus comprise: wi-Fi module, bluetooth module, NFC module.
In an exemplary embodiment, the source signaling device 700 may be implemented by one or more application specific integrated circuits (Application Specific Integrated Circuit, ASIC), digital signal processor (DigitalSignal Processor, DSP), digital signal processing device (DigitalSignal Processing Device, DSPD), programmable logic device (Programmable Logic Device, PLD), field programmable gate array (Field Programmable Gate Array, FPGA), controller, microcontroller, microprocessor, or other electronic element for performing the source signaling method described above.
In another exemplary embodiment, a computer readable storage medium is also provided, comprising program instructions which, when executed by a processor, implement the steps of the source signaling method described above. For example, the computer readable storage medium may be the second memory 702 described above including program instructions executable by the second processor 701 of the source signaling device 700 to perform the source signaling method described above.
Corresponding to the above signal transmission method embodiment, there is also provided a readable storage medium in this embodiment, and a readable storage medium described below and the above signal transmission method are referred to correspondingly.
A readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the source signaling method of the signaling method embodiments described above.
The readable storage medium may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, and the like.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
The foregoing is merely illustrative embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present application, and the application should be covered. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims (10)

1. The method for judging the information source direction is characterized by comprising the following steps:
receiving a first signal, wherein the first signal comprises a source signal sent by a source received by a first array element;
receiving a second signal, wherein the second signal comprises the information source signal received by a second array element;
obtaining the information source direction according to the first signal and the second signal;
the information source signals comprise preset data sequences, one antenna array element is selected from antenna array elements for receiving the information source signals and is configured as a reference antenna, other antennas are non-reference antennas, and the time length of the reference antenna for receiving the information source signals is longer than that of the non-reference antenna for receiving the information source signals; the time length of each non-reference antenna receiving the source signal is equal, and only one antenna array element is switched on at the same time;
the obtaining the information source direction according to the first signal and the second signal includes:
obtaining a frequency difference parameter of the information source signal according to the information source signal received by the reference antenna;
obtaining a first phase difference according to the frequency difference parameter and the time interval of receiving the source signals by two adjacent antenna array elements, wherein the two adjacent antenna array elements are the two antenna array elements which receive the source signals successively;
Obtaining a second phase difference according to the actual phases of the information source signals received by the two adjacent antenna array elements respectively; obtaining a third phase difference according to the second phase difference and the first phase difference; and obtaining the information source direction according to the third phase difference.
2. The source direction determining method according to claim 1, further comprising, after receiving the second signal:
and sequentially receiving the information source signals received by other antenna elements, wherein the other antenna elements comprise preset antenna elements for receiving the information source signals except the first array element and the second array element, and the other antenna elements comprise at least one antenna element.
3. A source direction determination apparatus, comprising:
the first receiving module is used for receiving a first signal, wherein the first signal comprises a signal source signal sent by a signal source received by a first array element;
the second receiving module is used for receiving a second signal, and the second signal comprises the information source signal received by a second array element;
the first calculation module is used for obtaining the information source direction according to the first signal and the second signal;
the information source signals comprise preset data sequences, one antenna array element is selected from antenna array elements for receiving the information source signals and is configured as a reference antenna, other antennas are non-reference antennas, and the time length of the reference antenna for receiving the information source signals is longer than that of the non-reference antenna for receiving the information source signals; the time length of each non-reference antenna receiving the source signal is equal, and only one antenna array element is switched on at the same time;
The first computing module includes:
obtaining a frequency difference parameter of the information source signal according to the information source signal received by the reference antenna;
obtaining a first phase difference according to the frequency difference parameter and the time interval of receiving the source signals by two adjacent antenna array elements, wherein the two adjacent antenna array elements are the two antenna array elements which receive the source signals successively;
obtaining a second phase difference according to the actual phases of the information source signals received by the two adjacent antenna array elements respectively; obtaining a third phase difference according to the second phase difference and the first phase difference; and obtaining the information source direction according to the third phase difference.
4. A source direction determination system, comprising:
the antenna array comprises a first array element and a second array element;
a programmable logic device for performing the steps of the source direction determination method of any one of claims 1 to 2.
5. A source direction determination apparatus, comprising:
a first memory for storing a computer program;
a first processor for implementing the steps of the source direction determination method according to any one of claims 1 to 2 when executing said computer program.
6. A readable storage medium, characterized by:
the readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the source direction determination method according to any of claims 1 to 2.
7. A method for transmitting a source signal, comprising:
generating a signal source signal, wherein the signal source signal comprises a preset data sequence;
the information source signals are sent and used for being received by a first array element and a second array element in sequence, after the information source signals are received by the first array element, first signals are obtained, after the information source signals are received by the second array element, second signals are obtained, the first signals and the second signals are used for calculating the direction of the information source, one antenna array element is selected from antenna array elements for receiving the information source signals and is configured as a reference antenna, the rest antennas are non-reference antennas, and the duration of the reference antenna for receiving the information source signals is longer than that of the non-reference antenna for receiving the information source signals; the time length of receiving the source signal by each non-reference antenna is equal, only one antenna array element is switched on at the same time, and the calculating of the direction of the source comprises the following steps: obtaining a frequency difference parameter of the information source signal according to the information source signal received by the reference antenna; obtaining a first phase difference according to the frequency difference parameter and the time interval of receiving the source signals by two adjacent antenna array elements, wherein the two adjacent antenna array elements are the two antenna array elements which receive the source signals successively; obtaining a second phase difference according to the actual phases of the information source signals received by the two adjacent antenna array elements respectively; obtaining a third phase difference according to the second phase difference and the first phase difference; and obtaining the information source direction according to the third phase difference.
8. A source signaling device, comprising:
the system comprises a source signal generation module, a data processing module and a data processing module, wherein the source signal generation module is used for generating a source signal which comprises a preset data sequence;
the information source signal sending module is used for sending the information source signals, the information source signals are used for being received by a first array element and a second array element in sequence, the information source signals are received by the first array element to obtain first signals, the information source signals are received by the second array element to obtain second signals, the first signals and the second signals are used for calculating the direction of the information source, one antenna array element is selected from antenna array elements for receiving the information source signals and is configured as a reference antenna, the rest antennas are non-reference antennas, and the time length of receiving the information source signals by the reference antenna is longer than that of receiving the information source signals by the non-reference antenna; the time length of each non-reference antenna receiving the source signal is equal, and only one antenna array element is switched on at the same time; calculating the direction of the source includes: obtaining a frequency difference parameter of the information source signal according to the information source signal received by the reference antenna; obtaining a first phase difference according to the frequency difference parameter and the time interval of receiving the source signals by two adjacent antenna array elements, wherein the two adjacent antenna array elements are the two antenna array elements which receive the source signals successively; obtaining a second phase difference according to the actual phases of the information source signals received by the two adjacent antenna array elements respectively; obtaining a third phase difference according to the second phase difference and the first phase difference; and obtaining the information source direction according to the third phase difference.
9. A source signaling device, comprising:
a second memory for storing a computer program;
a second processor for implementing the steps of the source signaling method of claim 7 when executing said computer program.
10. A readable storage medium, characterized by:
the readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the source signaling method of claim 7.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1744468A1 (en) * 2005-07-13 2007-01-17 Skipper Wireless Inc. Method and system for determining direction of transmission using multi-facet antenna
CN104076324A (en) * 2014-07-09 2014-10-01 桂林电子科技大学 Method for estimating high-accuracy arrival direction without knowing information source number
CN106772347A (en) * 2016-11-22 2017-05-31 武汉大学 A kind of information source radial velocity method for quick estimating based on fixed antenna array
CN111650553A (en) * 2020-06-02 2020-09-11 斯凯瑞利（北京）科技有限公司 Signal processing system and method for time division multiplexing-based direction estimation of arriving signals
CN112702100A (en) * 2020-12-14 2021-04-23 上海磐启微电子有限公司 Automatic following system for luggage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1744468A1 (en) * 2005-07-13 2007-01-17 Skipper Wireless Inc. Method and system for determining direction of transmission using multi-facet antenna
CN104076324A (en) * 2014-07-09 2014-10-01 桂林电子科技大学 Method for estimating high-accuracy arrival direction without knowing information source number
CN106772347A (en) * 2016-11-22 2017-05-31 武汉大学 A kind of information source radial velocity method for quick estimating based on fixed antenna array
CN111650553A (en) * 2020-06-02 2020-09-11 斯凯瑞利（北京）科技有限公司 Signal processing system and method for time division multiplexing-based direction estimation of arriving signals
CN112702100A (en) * 2020-12-14 2021-04-23 上海磐启微电子有限公司 Automatic following system for luggage

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Modified arrangement for RRH based model;Ericsson;3GPP TSG RAN WG4 Meeting #75 R4-153659;全文 *
均匀直线阵的波达方向估计;林华芳, 徐明远, 徐晟;云南大学学报(自然科学版)(第04期);全文 *

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