CN118101022B - Digital phased receiving array polarization tracking method, system, equipment and medium - Google Patents
Digital phased receiving array polarization tracking method, system, equipment and medium Download PDFInfo
- Publication number
- CN118101022B CN118101022B CN202410370075.2A CN202410370075A CN118101022B CN 118101022 B CN118101022 B CN 118101022B CN 202410370075 A CN202410370075 A CN 202410370075A CN 118101022 B CN118101022 B CN 118101022B
- Authority
- CN
- China
- Prior art keywords
- signal
- polarized beam
- beam signal
- conjugate
- compensation coefficient
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000010287 polarization Effects 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004364 calculation method Methods 0.000 claims description 113
- 238000004590 computer program Methods 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 238000003786 synthesis reaction Methods 0.000 abstract description 6
- 239000013598 vector Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000004422 calculation algorithm Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/086—Weighted combining using weights depending on external parameters, e.g. direction of arrival [DOA], predetermined weights or beamforming
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention relates to the technical field of digital multibeam, and provides a digital phased receiving array polarization tracking method, a system, equipment and a medium, wherein the method comprises the following steps: acquiring a plurality of digital beam signals generated by a digital beam gate array; acquiring a first conjugate signal of a polarized beam signal v and a second conjugate signal of a polarized beam signal h; obtaining a maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h and the second conjugate signal; a target combined signal between the polarized beam signal v and the polarized beam signal h is generated based on the polarized beam signal v, the polarized beam signal h, and the maximum compensation coefficient. In the embodiment of the invention, HV two linear polarization antennas are used for tracking the polarized beam signals v and h instead of the circular polarization antennas, and the two polarized beam signals v and h are subjected to beam synthesis to output the maximum signals, so that the 3db loss of the circular polarization antennas is avoided.
Description
Technical Field
The invention relates to the technical field of digital multibeam, in particular to a digital phased receiving array polarization tracking method, a system, equipment and a medium.
Background
In the existing digital phased antenna receiving array architecture, each single circularly polarized antenna is externally connected with a digital receiving channel, a plurality of digital beams are generated through a DBF FPGA (Digital Beamforming, digital beam forming technology/Field-Programmable GATE ARRAY, field Programmable gate array), and digital beam IQ signals are output to a baseband unit for demodulation. However, since the antennas in the existing digital phased antenna receiving array architecture are single circularly polarized antennas, the antenna gain drops by 3dB when receiving a linearly polarized signal.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides a digital phased receiving array polarization tracking method, a digital phased receiving array polarization tracking system, digital phased receiving array polarization tracking equipment and a digital phased receiving array polarization tracking medium, which can use HV two linear polarization antennas to replace a circular polarization antenna, respectively carry out beam synthesis on data of the two antennas, output maximum signals and avoid the 3db loss of the circular polarization antenna.
The technical scheme for solving the technical problems is as follows:
A digital phased receiving array polarization tracking method comprises the following steps:
Acquiring a plurality of digital beam signals generated by a digital beam gate array; the plurality of digital beams includes a polarized beam signal v and a polarized beam signal h;
Acquiring a first conjugate signal of the polarized beam signal v and a second conjugate signal of the polarized beam signal h;
Obtaining a maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h and the second conjugate signal;
and generating a target combined signal between the polarized beam signal v and the polarized beam signal h based on the polarized beam signal v, the polarized beam signal h and the maximum compensation coefficient.
According to the digital phased receiving array polarization tracking method provided by the invention, the maximum compensation coefficient is obtained based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h and the second conjugate signal, and the method comprises the following steps:
Performing product calculation based on the polarized beam signal v and a first conjugate signal corresponding to the polarized beam signal v to obtain a first calculated value, and performing product calculation based on the polarized beam signal h and a second conjugate signal corresponding to the polarized beam signal h to obtain a second calculated value;
comparing the values of the first calculated value and the second calculated value to obtain a comparison result;
And obtaining the maximum compensation coefficient based on the comparison result, the polarized beam signal v and the polarized beam signal h, and the first conjugate signal or the second conjugate signal.
According to the digital phased receiving array polarization tracking method provided by the invention, the maximum compensation coefficient is obtained based on the comparison result, the polarized beam signal v, the polarized beam signal h and the second conjugate signal, and the method comprises the following steps:
If the comparison result is that the second calculated value is larger than the first calculated value, performing product calculation based on the second conjugate signal and the polarized beam signal v to obtain a first product calculation result;
Performing product calculation based on the second conjugate signal and the polarized beam signal h to obtain a second product calculation result;
And carrying out quotient calculation on the first product calculation result and the second product calculation result, and determining the obtained first quotient calculation result as the maximum compensation coefficient.
According to the digital phased receiving array polarization tracking method provided by the invention, the calculation formula for generating the target combined signal between the polarized beam signal v and the polarized beam signal h based on the polarized beam signal v, the polarized beam signal h and the maximum compensation coefficient is as follows:
Wherein alpha is the maximum compensation coefficient, and w is the target combined signal;
the calculation formula of the maximum compensation coefficient is as follows:
Wherein h H is the second conjugate signal.
According to the digital phased receiving array polarization tracking method provided by the invention, the maximum compensation coefficient is obtained based on the comparison result, the polarized beam signal v, the polarized beam signal h and the first conjugate signal, and the method comprises the following steps:
if the comparison result is that the second calculated value is smaller than the first calculated value, performing product calculation based on the first conjugate signal and the polarized beam signal h to obtain a third product calculation result;
performing product calculation based on the first conjugate signal and the polarized beam signal v to obtain a fourth product calculation result;
And carrying out quotient calculation on the third product calculation result and the fourth product calculation result, and determining the obtained second quotient calculation result as the maximum compensation coefficient.
According to the digital phased receiving array polarization tracking method provided by the invention, the calculation formula for generating the target combined signal between the polarized beam signal v and the polarized beam signal h based on the polarized beam signal v, the polarized beam signal h and the maximum compensation coefficient is as follows:
Wherein alpha is the maximum compensation coefficient, and w is the target combined signal;
the calculation formula of the maximum compensation coefficient is as follows:
wherein v H is the first conjugate signal.
The invention also provides a digital phase control receiving array polarization tracking system, which comprises:
The first acquisition module is used for acquiring a plurality of digital beam signals generated by the digital beam gate array; the plurality of digital beams includes a polarized beam signal v and a polarized beam signal h;
The second acquisition module is used for acquiring a first conjugate signal of the polarized beam signal v and a second conjugate signal of the polarized beam signal h;
The compensation coefficient calculation module is used for obtaining a maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h and the second conjugate signal;
and the combined signal generation module is used for generating a target combined signal between the polarized beam signal v and the polarized beam signal h based on the polarized beam signal v, the polarized beam signal h and the maximum compensation coefficient.
The present invention also provides an electronic device including: a memory for storing a computer software program; and the processor is used for reading and executing the computer software program so as to realize the digital phased receiving array polarization tracking method.
The invention also provides a non-transitory computer readable storage medium, characterized in that the storage medium stores a computer software program which when executed by a processor implements any of the digital phased array polarization tracking methods described above.
The invention also provides a computer program product comprising a computer program which when executed by a processor implements a digital phased receive array polarization tracking method as described in any one of the above.
The beneficial effects of the invention are as follows: acquiring a plurality of digital beam signals generated by a digital beam gate array; the plurality of digital beams includes a polarized beam signal v and a polarized beam signal h; acquiring a first conjugate signal of a polarized beam signal v and a second conjugate signal of a polarized beam signal h; obtaining a maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h and the second conjugate signal; a target combined signal between the polarized beam signal v and the polarized beam signal h is generated based on the polarized beam signal v, the polarized beam signal h, and the maximum compensation coefficient. Therefore, the polarized beam signals v and h are tracked by using the HV two linear polarized antennas instead of the circular polarized antenna, and the two polarized beam signals v and h are subjected to beam synthesis, so that the maximum signal is output, and the 3db loss of the circular polarized antenna is avoided.
Drawings
Fig. 1 is a schematic flow chart of a digital phased receiving array polarization tracking method according to an embodiment of the present application;
FIG. 2 is a schematic diagram of the digital phased array polarization tracking system provided by the invention;
fig. 3 is a schematic diagram of an embodiment of an electronic device according to an embodiment of the present invention;
Fig. 4 is a schematic diagram of an embodiment of a computer readable storage medium according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. 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.
In the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, the term "for example" is used to mean "serving as an example, instance, or illustration. Any embodiment described as "for example" in this disclosure is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for purposes of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes have not been described in detail so as not to obscure the description of the application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
In the existing digital phased antenna receiving array architecture, each single circularly polarized antenna is externally connected with a digital receiving channel, a plurality of digital beams are generated through a DBF FPGA, and digital beam IQ signals are output to a baseband unit for demodulation. However, since the antennas in the existing digital phased antenna receiving array architecture are single circularly polarized antennas, the antenna gain drops by 3dB when receiving a linearly polarized signal.
Therefore, in order to solve the above technical problems, the embodiment of the present invention acquires a plurality of digital beam signals generated by a digital beam gate array; the plurality of digital beams includes a polarized beam signal v and a polarized beam signal h; acquiring a first conjugate signal of a polarized beam signal v and a second conjugate signal of a polarized beam signal h; obtaining a maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h and the second conjugate signal; a target combined signal between the polarized beam signal v and the polarized beam signal h is generated based on the polarized beam signal v, the polarized beam signal h, and the maximum compensation coefficient. Therefore, in the embodiment of the invention, the HV two linear polarization antennas are used for tracking the polarized beam signals v and h instead of the circular polarization antennas, and the two polarized beam signals v and h are subjected to beam synthesis to output the maximum signals, so that the 3db loss of the circular polarization antennas is avoided.
It should be noted that, in the embodiment of the present invention, a digital phased receiving array polarization tracking system is taken as an execution subject for illustration, and for the purpose of description, the following digital phased receiving array polarization tracking system is simply described as a polarization tracking system. In one embodiment, the polarization tracking system at least includes a DBF-H FPGA (H digital beam gate array) and a DBF-V FPGA (V digital beam gate array), and a digital phase control receiving array polarization tracking method of the present invention is described below with reference to fig. 1, which includes:
Step 10, a plurality of digital beam signals generated by the digital beam gate array are acquired.
Optionally, after the polarization tracking system receives the signal sent by the antenna, the signal sent by the antenna is processed through the digital beam gate array to generate a plurality of digital beam signals, where the plurality of digital beams include a polarized beam signal V and a polarized beam signal H, so it can be understood that the signal sent by the antenna is processed through the DBF-H FPGA to generate the polarized beam signal V, and the signal sent by the antenna is processed through the DBF-V FPGA to obtain the polarized beam signal H.
Step 20, a first conjugate signal of the polarized beam signal v and a second conjugate signal of the polarized beam signal h are obtained.
Step 30, obtaining the maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h and the second conjugate signal.
Optionally, the polarization tracking system acquires a first conjugate signal v H of the polarized beam signal v and acquires a second conjugate signal h H of the polarized beam signal h. The polarization tracking system obtains the maximum compensation coefficient according to the polarization beam signal v, the first conjugate signal, the polarization beam signal h and the second conjugate signal, and specifically comprises the following steps:
Step 301, performing product calculation based on the polarized beam signal v and the corresponding first conjugate signal thereof to obtain a first calculated value, and performing product calculation based on the polarized beam signal h and the corresponding second conjugate signal thereof to obtain a second calculated value;
step 302, comparing the first calculated value with the second calculated value to obtain a comparison result;
Step 303, obtaining the maximum compensation coefficient based on the comparison result, the polarized beam signal v and the polarized beam signal h, and the first conjugate signal or the second conjugate signal
Optionally, the polarization tracking system performs product calculation according to the polarized beam signal v and the corresponding first conjugate signal v H to obtain a first calculated value, so that the first calculated value may be denoted as v H ×v. Further, the polarization tracking system performs product calculation according to the polarized beam signal h and the second conjugate signal h H corresponding to the polarized beam signal h to obtain a second calculated value, so the second calculated value may be expressed as h H ×h.
Further, the polarization tracking system compares the first calculated value v H with the second calculated value h H to obtain a comparison result, and thus the comparison result may be that the first calculated value v H is greater than the second calculated value h H, or that the first calculated value v H is less than the second calculated value h H.
Further, the polarization tracking system obtains the maximum compensation coefficient according to the comparison result, the polarized beam signal v and the polarized beam signal h, and the first conjugate signal v H or the second conjugate signal h H, which may be understood as obtaining the maximum compensation coefficient according to the comparison result, the polarized beam signal v, the polarized beam signal h and the first conjugate signal v H, or obtaining the maximum compensation coefficient according to the comparison result, the polarized beam signal v, the polarized beam signal h and the second conjugate signal v H.
For the first case: the comparison result is that the second calculated value is larger than the first calculated value, that is, the first calculated value v H is smaller than the second calculated value h H, and the specific process of obtaining the maximum compensation coefficient is as follows:
Step 3031, if the comparison result is that the second calculated value is greater than the first calculated value, performing product calculation based on the second conjugate signal and the polarized beam signal v to obtain a first product calculation result;
step 3032, performing product calculation based on the second conjugate signal and the polarized beam signal h to obtain a second product calculation result;
step 3033, performing quotient calculation on the first product calculation result and the second product calculation result, and determining the obtained first quotient calculation result as a maximum compensation coefficient.
The polarization tracking system performs product calculation according to the second conjugate signal h H and the polarized beam signal v to obtain a first product calculation result, so that the first product calculation result may be denoted as h H v. Further, the polarization tracking system performs product calculation according to the second conjugate signal h H and the polarized beam signal h to obtain a second product calculation result, and thus, the second product calculation result may be denoted as h H h. Further, the polarization tracking system performs quotient calculation on the first product calculation result h H v and the second product calculation result h H h, and determines the obtained first quotient calculation result as a maximum compensation coefficient, wherein the calculation formula of the maximum compensation coefficient is as follows:
Where α is the maximum compensation coefficient.
For the second case: the comparison result is that the second calculated value is smaller than the first calculated value, that is, the first calculated value v H is larger than the second calculated value h H, and the specific process of obtaining the maximum compensation coefficient is as follows:
Step 3034, if the comparison result is that the second calculated value is smaller than the first calculated value, performing product calculation based on the first conjugate signal and the polarized beam signal h to obtain a third product calculation result;
Step 3035, performing product calculation based on the first conjugate signal and the polarized beam signal v to obtain a fourth product calculation result;
Step 3036, the third product calculation result and the fourth product calculation result are subjected to quotient calculation, and the obtained second quotient calculation result is determined as the maximum compensation coefficient.
Optionally, the polarization tracking system performs product calculation according to the first conjugate signal v H and the polarized beam signal h to obtain a third product calculation result, so the third product calculation result may be denoted as v H h. Further, the polarization tracking system performs product calculation according to the first conjugate signal v H and the polarized beam signal v to obtain a fourth product calculation result, and thus, the fourth product calculation result may be denoted as v H v.
Further, the polarization tracking system performs quotient calculation on the third product calculation result v H h and the fourth product calculation result v H v, and determines the obtained second quotient calculation result as a maximum compensation coefficient, wherein the calculation formula of the maximum compensation coefficient is as follows:
Where α is the maximum compensation coefficient.
Step 40, generating a target combined signal between the polarized beam signal v and the polarized beam signal h based on the polarized beam signal v, the polarized beam signal h and the maximum compensation coefficient.
For the first case: the comparison result is that the second calculated value is greater than the first calculated value, that is, the first calculated value v H ×v is less than the second calculated value h H ×h, and the calculation formula for generating the target combined signal between the polarized beam signal v and the polarized beam signal h based on the polarized beam signal v, the polarized beam signal h and the maximum compensation coefficient is as follows:
For the second case: the comparison result is that the second calculated value is smaller than the first calculated value, that is, the first calculated value v H is larger than the second calculated value h H, and the calculation formula for generating the target combined signal between the polarized beam signal v and the polarized beam signal h based on the polarized beam signal v, the polarized beam signal h and the maximum compensation coefficient is as follows:
Wherein, alpha is the maximum compensation coefficient, and w is the target combined signal.
In one embodiment, the embodiment of the present invention can be further understood as: the column vectors of the beam signals for both polarizations H (horizontal, horizental) and V (vertical) after DBF are noted as H and V. Let the h and v vectors contain N signal samples, each of which is complex. If represented by a row vector, the h vector is represented by [ h (1), h (2), …, h (N) ], and the samples are separated by commas. If represented by a column vector, the h vector is represented as [ h (1); h (2); …; h (N), the sample points are marked by a mark "; "partition". [ h (1), h (2), …, h (N) ] is [ h (1); h (2); …; h (N) ]. The embodiment of the invention is represented by a column vector, and therefore, the column vector h= [ h (1); h (2); …; h (N) ]. The conjugate transpose h H of the column vector h is a row vector, where h * (1) is the conjugate complex number of h (1), the v vectors are the same, and the signal column vector after combining is w. The following process flow may be used:
If hHh>vHv
Else
End
The embodiment of the invention relates to alignment of v vector and h vector, wherein LS (least square) algorithm, namely least square algorithm is used for alignment. Taking h Hh>vH v as an example, f (α) is a function of α, α being a complex number:
f(α)＝|hα-v|2
The adjustment of α minimizes the above formula f (α). Df (α)/dα h＝0(αh is complex conjugate of α at the minimum point, i.e., h H (hα -v) =0, to obtain
As the antenna output signal contains both wireless signals and noise. The magnitudes of noise contained in the h signal and the v signal are the same. If h Hh>vH v, which means that the h signal is somewhat more than the wireless signal (useful component in the antenna output signal) contained in the v signal, h H h should be used as a denominator, so that the calculated α can be made more accurate. Otherwise, using v H v as the denominator may make the calculated α more accurate.
Further, when the v signal is aligned to the h signal, only the phase of the signal is adjusted, and the amplitude of the signal is not adjusted, which is specifically described as follows:
In the case of the h Hh>vH v, since ||α|/α|= |α|/|α|=1, so that That is to say with respect to v,The amplitude is not adjusted but the phase is adjusted. For h Hh≤vH v, the same applies. Since |α/|α|= |α|/|α|=1, the following is trueThat is to say with respect to v,The amplitude is not adjusted but the phase is adjusted.
Further, the phase always leans upward toward H, and there are antenna elements with two polarization directions of H (horizontal) and V (vertical) at the same physical position of the antenna element. The DBF can be implemented with only H-direction cells, or only V-direction cells.
In order to ensure that the total power (H power+V power) before and after combining is unchanged, assuming that the amplitude of a wireless signal is m, the included angle between the electric field direction and the H polarization direction is theta, and the included angle between the electric field direction and the V polarization direction is 90 ° -theta, on the same antenna position, the amplitude of an output signal in the H polarization direction is m x cos theta, and the amplitude of an output signal in the V polarization direction is m x sin theta. The power of the H polarization direction output signal is m 2*cos2 θ, and the amplitude of the V polarization direction output signal is m 2*sin2 θ. It follows that when the output powers of the two H/V polarized antennas at the same antenna position are known, the output powers of the two H/V polarized antennas should be added and then squared to obtain the wireless signal amplitude m at the antenna position. I.e.From this, it is seen that the radio signal amplitude corresponds to (H power + V power). To make the polarization-combined signal, i.e. the w signal amplitude, correctly reflect the amplitude of the radio signal, w signal power = h signal power + v signal power is needed and only needed.
When the LS algorithm is used for calculating alpha, if h Hh>vH vOtherwiseAlpha reflects the relative difference in amplitude phase of the h signal and the v signal. α=1 (which can be calculated by h=v) means that there is no amplitude phase difference, i.e. the same amplitude, and the phase difference is 0. If h Hh>vH v then |α|=v signal amplitude/h signal amplitude, otherwise |α|=h signal amplitude/v signal amplitude. Inverse positive always |α|=small signal amplitude/large signal amplitude, see |α|+.1.
With a large signal amplitude of 1, the total power (H power+v power) before polarization combining is 1+|α| 2. When in combination, the amplitude of the large signal is 1, the amplitude of the small signal is |alpha|, and the large and small signals are in phase, so that the amplitude of the w signal after combination is 1+|alpha|, and the power of the w signal is (1+|alpha|) 2. To let w signal power = h signal power + v signal power = 1+|α| 2, the power should be multiplied byCorresponding to the amplitude, i.e. multiplied byIs used for the compensation coefficient of (a).
The embodiment obtains a plurality of digital beam signals generated by a digital beam gate array; the plurality of digital beams includes a polarized beam signal v and a polarized beam signal h; acquiring a first conjugate signal of a polarized beam signal v and a second conjugate signal of a polarized beam signal h; obtaining a maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h and the second conjugate signal; a target combined signal between the polarized beam signal v and the polarized beam signal h is generated based on the polarized beam signal v, the polarized beam signal h, and the maximum compensation coefficient. Therefore, the polarized beam signals v and h are tracked by using the HV two linear polarized antennas instead of the circular polarized antenna, and the two polarized beam signals v and h are subjected to beam synthesis, so that the maximum signal is output, and the 3db loss of the circular polarized antenna is avoided.
The digital phased receiving array polarization tracking system provided by the invention is described below, and the digital phased receiving array polarization tracking system described below and the digital phased receiving array polarization tracking method described above can be referred to correspondingly.
Optionally, as shown in fig. 2, fig. 2 is a schematic structural diagram of a digital phased receiving array polarization tracking system provided in the present invention, where the system includes:
A first acquisition module 201, configured to acquire a plurality of digital beam signals generated by the digital beam gate array; the plurality of digital beams includes a polarized beam signal v and a polarized beam signal h;
A second acquisition module 202, configured to acquire a first conjugate signal of the polarized beam signal v and a second conjugate signal of the polarized beam signal h;
A compensation coefficient calculation module 203, configured to obtain a maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h, and the second conjugate signal;
A combined signal generating module 204, configured to generate a target combined signal between the polarized beam signal v and the polarized beam signal h based on the polarized beam signal v, the polarized beam signal h, and the maximum compensation coefficient.
The embodiment of the invention acquires a plurality of digital beam signals generated by a digital beam gate array; the plurality of digital beams includes a polarized beam signal v and a polarized beam signal h; acquiring a first conjugate signal of a polarized beam signal v and a second conjugate signal of a polarized beam signal h; obtaining a maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h and the second conjugate signal; a target combined signal between the polarized beam signal v and the polarized beam signal h is generated based on the polarized beam signal v, the polarized beam signal h, and the maximum compensation coefficient. Therefore, the polarized beam signals v and h are tracked by using the HV two linear polarized antennas instead of the circular polarized antenna, and the two polarized beam signals v and h are subjected to beam synthesis, so that the maximum signal is output, and the 3db loss of the circular polarized antenna is avoided.
In the embodiment of the present application, the compensation coefficient calculating module 203 is configured to obtain a maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h, and the second conjugate signal, and includes:
Performing product calculation based on the polarized beam signal v and a first conjugate signal corresponding to the polarized beam signal v to obtain a first calculated value, and performing product calculation based on the polarized beam signal h and a second conjugate signal corresponding to the polarized beam signal h to obtain a second calculated value;
comparing the values of the first calculated value and the second calculated value to obtain a comparison result;
And obtaining the maximum compensation coefficient based on the comparison result, the polarized beam signal v and the polarized beam signal h, and the first conjugate signal or the second conjugate signal.
In the embodiment of the present application, the compensation coefficient calculating module 203 is configured to obtain the maximum compensation coefficient based on the comparison result, the polarized beam signal v, the polarized beam signal h, and the second conjugate signal, and includes:
If the comparison result is that the second calculated value is larger than the first calculated value, performing product calculation based on the second conjugate signal and the polarized beam signal v to obtain a first product calculation result;
Performing product calculation based on the second conjugate signal and the polarized beam signal h to obtain a second product calculation result;
And carrying out quotient calculation on the first product calculation result and the second product calculation result, and determining the obtained first quotient calculation result as the maximum compensation coefficient.
In the embodiment of the present application, the calculation formula for generating the target combined signal between the polarized beam signal v and the polarized beam signal h based on the polarized beam signal v, the polarized beam signal h and the maximum compensation coefficient is as follows:
Wherein alpha is the maximum compensation coefficient, and w is the target combined signal;
the calculation formula of the maximum compensation coefficient is as follows:
Wherein h H is the second conjugate signal.
In the embodiment of the present application, the compensation coefficient calculating module 203 is configured to obtain the maximum compensation coefficient based on the comparison result, the polarized beam signal v, the polarized beam signal h, and the first conjugate signal, and includes:
if the comparison result is that the second calculated value is smaller than the first calculated value, performing product calculation based on the first conjugate signal and the polarized beam signal h to obtain a third product calculation result;
performing product calculation based on the first conjugate signal and the polarized beam signal v to obtain a fourth product calculation result;
And carrying out quotient calculation on the third product calculation result and the fourth product calculation result, and determining the obtained second quotient calculation result as the maximum compensation coefficient.
In the embodiment of the present application, the calculation formula for generating the target combined signal between the polarized beam signal v and the polarized beam signal h based on the polarized beam signal v, the polarized beam signal h and the maximum compensation coefficient is as follows:
Wherein alpha is the maximum compensation coefficient, and w is the target combined signal;
the calculation formula of the maximum compensation coefficient is as follows:
wherein v H is the first conjugate signal.
Referring to fig. 3, fig. 3 is a schematic diagram of an embodiment of an electronic device according to an embodiment of the invention. As shown in fig. 3, an embodiment of the present invention provides an electronic device 300, including a memory 310, a processor 320, and a computer program 311 stored in the memory 310 and executable on the processor 320, wherein the processor 320 implements the following steps when executing the computer program 311:
Acquiring a plurality of digital beam signals generated by a digital beam gate array; the plurality of digital beams includes a polarized beam signal v and a polarized beam signal h;
Acquiring a first conjugate signal of the polarized beam signal v and a second conjugate signal of the polarized beam signal h;
Obtaining a maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h and the second conjugate signal;
and generating a target combined signal between the polarized beam signal v and the polarized beam signal h based on the polarized beam signal v, the polarized beam signal h and the maximum compensation coefficient.
Referring to fig. 4, fig. 4 is a schematic diagram of an embodiment of a computer readable storage medium according to an embodiment of the invention. As shown in fig. 4, the present embodiment provides a computer-readable storage medium 400 having stored thereon a computer program 411, which computer program 411, when executed by a processor, performs the steps of:
Acquiring a plurality of digital beam signals generated by a digital beam gate array; the plurality of digital beams includes a polarized beam signal v and a polarized beam signal h;
Acquiring a first conjugate signal of the polarized beam signal v and a second conjugate signal of the polarized beam signal h;
Obtaining a maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h and the second conjugate signal;
and generating a target combined signal between the polarized beam signal v and the polarized beam signal h based on the polarized beam signal v, the polarized beam signal h and the maximum compensation coefficient.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, 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. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (8)
1. The digital phased receiving array polarization tracking method is characterized by comprising the following steps of:
Acquiring a plurality of digital beam signals generated by a digital beam gate array; the plurality of digital beam signals includes a polarized beam signal v and a polarized beam signal h; the polarized beam signal v is a vertical polarized beam signal v, and the polarized beam signal h is a horizontal polarized beam signal h;
Acquiring a first conjugate signal of the polarized beam signal v and a second conjugate signal of the polarized beam signal h;
Obtaining a maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h and the second conjugate signal;
based on the polarized beam signal v, the polarized beam signal h and the maximum compensation coefficient, generating a target combined signal between the polarized beam signal v and the polarized beam signal h, wherein the formula is as follows:
wherein alpha is the maximum compensation coefficient, and w is the target combined signal;
if v Hv＞hH h, the calculation formula of the maximum compensation coefficient is:
if v Hv＜hH h, the calculation formula of the maximum compensation coefficient is:
Wherein v H is the first conjugate signal; h H is the second conjugate signal.
2. The method according to claim 1, wherein said deriving a maximum compensation coefficient based on said polarized beam signal v, said first conjugate signal, said polarized beam signal h, and said second conjugate signal comprises:
Performing product calculation based on the polarized beam signal v and a first conjugate signal corresponding to the polarized beam signal v to obtain a first calculated value, and performing product calculation based on the polarized beam signal h and a second conjugate signal corresponding to the polarized beam signal h to obtain a second calculated value;
comparing the values of the first calculated value and the second calculated value to obtain a comparison result;
And obtaining the maximum compensation coefficient based on the comparison result, the polarized beam signal v and the polarized beam signal h, and the first conjugate signal or the second conjugate signal.
3. The method according to claim 2, wherein deriving the maximum compensation coefficient based on the comparison result, the polarized beam signal v, the polarized beam signal h, and the second conjugate signal comprises:
If the comparison result is that the second calculated value is larger than the first calculated value, performing product calculation based on the second conjugate signal and the polarized beam signal v to obtain a first product calculation result;
Performing product calculation based on the second conjugate signal and the polarized beam signal h to obtain a second product calculation result;
And carrying out quotient calculation on the first product calculation result and the second product calculation result, and determining the obtained first quotient calculation result as the maximum compensation coefficient.
4. The method according to claim 2, wherein deriving the maximum compensation coefficient based on the comparison result, the polarized beam signal v, the polarized beam signal h, and the first conjugate signal comprises:
if the comparison result is that the second calculated value is smaller than the first calculated value, performing product calculation based on the first conjugate signal and the polarized beam signal h to obtain a third product calculation result;
performing product calculation based on the first conjugate signal and the polarized beam signal v to obtain a fourth product calculation result;
And carrying out quotient calculation on the third product calculation result and the fourth product calculation result, and determining the obtained second quotient calculation result as the maximum compensation coefficient.
5. A digital phased receive array polarization tracking system, comprising:
The first acquisition module is used for acquiring a plurality of digital beam signals generated by the digital beam gate array; the plurality of digital beam signals includes a polarized beam signal v and a polarized beam signal h; the polarized beam signal v is a vertical polarized beam signal v, and the polarized beam signal h is a horizontal polarized beam signal h;
The second acquisition module is used for acquiring a first conjugate signal of the polarized beam signal v and a second conjugate signal of the polarized beam signal h;
The compensation coefficient calculation module is used for obtaining a maximum compensation coefficient based on the polarized beam signal v, the first conjugate signal, the polarized beam signal h and the second conjugate signal;
if v Hv＞hH h, the calculation formula of the maximum compensation coefficient is:
if v Hv＜hH h, the calculation formula of the maximum compensation coefficient is:
wherein v H is the first conjugate signal; h H is a second conjugate signal;
the combined signal generating module is configured to generate a target combined signal between the polarized beam signal v and the polarized beam signal h based on the polarized beam signal v, the polarized beam signal h and the maximum compensation coefficient, where the formula is:
wherein, alpha is the maximum compensation coefficient, and w is the target combined signal.
6. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the digital phased receive array polarization tracking method of any of claims 1 to 4 when the program is executed by the processor.
7. A non-transitory computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the digital phased receive array polarization tracking method of any of claims 1 to 4.
8. A computer program product having a computer program stored thereon, which when executed by a processor implements a digital phased array polarization tracking method according to any of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410370075.2A CN118101022B (en) | 2024-03-29 | 2024-03-29 | Digital phased receiving array polarization tracking method, system, equipment and medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410370075.2A CN118101022B (en) | 2024-03-29 | 2024-03-29 | Digital phased receiving array polarization tracking method, system, equipment and medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118101022A CN118101022A (en) | 2024-05-28 |
| CN118101022B true CN118101022B (en) | 2024-09-06 |
Family
ID=91158643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410370075.2A Active CN118101022B (en) | 2024-03-29 | 2024-03-29 | Digital phased receiving array polarization tracking method, system, equipment and medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118101022B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216986A (en) * | 2020-10-22 | 2021-01-12 | 成都天锐星通科技有限公司 | Beam tracking method, beam tracking device, computer equipment and readable storage medium |
| CN112235020A (en) * | 2020-12-08 | 2021-01-15 | 成都天锐星通科技有限公司 | Phased array antenna polarization tracking method and device and electronic equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL267203B (en) * | 2019-06-10 | 2020-11-30 | Satixfy Uk Ltd | Phased array antenna and system and method of antenna operation |
| CN110837075A (en) * | 2019-11-13 | 2020-02-25 | 杭州电子科技大学 | Low-complexity polarization parameter estimation tracking device and method |
| CN113792418B (en) * | 2021-08-25 | 2023-06-02 | 中国电子科技集团公司第三十九研究所 | Polarization phase compensation method suitable for circularly polarized spherical phased array antenna |
-
2024
- 2024-03-29 CN CN202410370075.2A patent/CN118101022B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112216986A (en) * | 2020-10-22 | 2021-01-12 | 成都天锐星通科技有限公司 | Beam tracking method, beam tracking device, computer equipment and readable storage medium |
| CN112235020A (en) * | 2020-12-08 | 2021-01-15 | 成都天锐星通科技有限公司 | Phased array antenna polarization tracking method and device and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118101022A (en) | 2024-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Friedlander | Localization of signals in the near-field of an antenna array | |
| CN104408278A (en) | A method for forming steady beam based on interfering noise covariance matrix estimation | |
| CN107643532B (en) | Satellite navigation signal processing method and device, computer equipment and storage medium | |
| CN109507698A (en) | The anti-interference steering vector automatic correction system of satellite navigation | |
| CN105717493A (en) | Passive radar radiation source polarization identification and direction-finding system based on synthesis polarization method | |
| WO2012003018A1 (en) | Method for low sidelobe operation of a phased array antenna having failed antenna elements | |
| KR101807499B1 (en) | Apparatus for estimating direction of arrival based on a circularly arraying antenna compensating intermutual interference and method therefor | |
| KR102001394B1 (en) | Method of estimating DOA of received signals based on logarithmic-domain antenna array interpolation, and apparatus for the same | |
| JP2006270847A (en) | Antenna device | |
| CN106646529A (en) | GNSS antenna array anti-interference method based on multi-beam optimization | |
| CN110208829A (en) | A kind of navigational communications anti-interference method | |
| CN101252382B (en) | Wide frequency range signal polarizing and DOA estimating method and apparatus | |
| CN103323832A (en) | Amplitude-phase error correction method for phased array three-dimensional camera shooting sonar system energy converter array | |
| CN116203517A (en) | Array error calibration method based on reconfigurable intelligent surface assistance and related equipment | |
| CN106842135B (en) | Adaptive beamformer method based on interference plus noise covariance matrix reconstruct | |
| US9444558B1 (en) | Synthetic robust adaptive beamforming | |
| CN108414993A (en) | COLD arrays direction of arrival based on resampling and polarization parameter combined estimation method | |
| CN113629400B (en) | Single pulse antenna tracking phase correction method | |
| CN118101022B (en) | Digital phased receiving array polarization tracking method, system, equipment and medium | |
| Wang et al. | Deception jamming detection based on beam scanning for satellite navigation systems | |
| CN112763972B (en) | Sparse representation-based double parallel line array two-dimensional DOA estimation method and computing equipment | |
| CN101915906B (en) | Adaptive beam forming side lobe shaping method | |
| CN117978233B (en) | Digital phase control receiving array polarization tracking method and system thereof | |
| CN107402371A (en) | A kind of smart antenna array | |
| CN114325565B (en) | Array super-resolution direction finding method based on subspace relation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |