CN-122027009-A - Phased array beam interference suppression method, device, equipment and storage medium

Abstract

The invention relates to a phased array beam interference suppression method, a phased array beam interference suppression device, phased array beam interference suppression equipment and a storage medium. The method comprises the steps that after a phased array receives a beam switching instruction according to a stipulated configuration mode, the beam switching instruction is divided into a single beam switching instruction and a multi-beam switching instruction. The total interference of the target beam by the residual beam of the target beam is calculated. The total interference is compared to a minimum signal to noise threshold for the target beam. If the minimum signal-to-noise threshold is not met, interference suppression is performed on the interfering source to reconfigure the target beam. The method can improve the interference resistance of the same-frequency multi-beam communication.

Inventors

• Liu Xiashu
• LI FANGBIAO

Assignees

• 湖南斯北图科技有限公司

Dates

Publication Date

20260512

Application Date

20260415

Claims (10)

1. 1. A method of phased array beam interference suppression, the method comprising: According to a contracted configuration mode, after receiving a beam switching instruction, the phased array divides the beam switching instruction into a single beam switching instruction and a multi-beam switching instruction; calculating the total interference of a target beam by the residual beam of the target beam; comparing the total interference with a minimum signal-to-noise threshold of a target beam; If the minimum signal-to-noise threshold is not met, interference suppression is performed on the interfering source to reconfigure the target beam.
2. 2. The method of claim 1, wherein calculating the total interference of the target beam by the residual beam of the target beam comprises: Calculating sidelobe signals of the target beam at the points of the rest beams of the target beam by adopting an array comprehensive algorithm to serve as single-beam interference, and carrying out arithmetic accumulation on the signal intensity of each single-beam interference to obtain total interference: ; Wherein, the For beam n to experience the total interference of the other beams, Is the interference of beam m to beam n.
3. 3. The method of claim 1, wherein the minimum snr threshold for the target beam is a minimum snr threshold that is determined to be guaranteed for current beam communication based on a signal modulation scheme employed by the target beam 。
4. 4. The method of claim 3, wherein if the minimum signal-to-noise threshold is not met, performing interference suppression on an interfering source to reconfigure the target beam comprises: If the minimum signal-to-noise ratio threshold is not met, when the number of array elements is enough and the degree of freedom of the system is sufficient, polling to calculate that the nth beam is influenced by the rest of N-1 beams, taking the rest of N-1 beams as an interference source input, and adopting a zero forcing algorithm or a minimum variance undistorted response algorithm to perform total interference source suppression so as to reconfigure the target beam.
5. 5. The method of claim 1 wherein when performing multi-beam switching, for M beams that need to be switched, polling calculates interference impact of an mth beam on N-M beams that have been configured, and if adding the mth beam results in interference of the nth beam that has been configured exceeding the minimum snr threshold, then the mth beam needs to perform beam suppression on an angle at which the nth beam is located, so as to reconfigure the target beam.
6. 6. The method of claim 5, further comprising, prior to the step of performing interference suppression on an interfering source to reconfigure the target beam if the minimum signal-to-noise threshold is not met: if the degree of freedom of the phased array is limited, when the mth beam cannot meet all interference suppression requirements, the interference power of all K beams affected by the mth beam and having interference exceeding a threshold value is ordered in a descending order, and the interference suppression requirements of the first L beams are preferentially met, wherein L is determined by the degree of freedom of the phased array.
7. 7. The method of claim 4, wherein performing interference suppression on an interfering source to reconfigure the target beam comprises: And at the next moment, constructing an anti-phase interference signal by using the power of the rest beams measured at the current moment, and superposing the anti-phase interference signal and a receiving signal to counteract interference and reconfigure the target beam.
8. 8. A phased array beam interference suppression device, the device comprising: the instruction switching module is used for dividing the beam switching instruction into a single beam switching instruction and a multi-beam switching instruction after the phased array receives the beam switching instruction according to a stipulated configuration mode; the total interference calculation module is used for calculating the total interference of the target beam by the residual beam of the target beam; a target threshold acquisition module, configured to compare the total interference with a minimum signal-to-noise threshold of a target beam; And the interference suppression module is used for executing interference suppression on an interference source to reconfigure the target beam if the minimum signal-to-noise ratio threshold is not met.
9. 9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 6 when the computer program is executed.
10. 10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.

Description

Phased array beam interference suppression method, device, equipment and storage medium Technical Field The present invention relates to the field of multi-beam interference suppression technologies, and in particular, to a phased array beam interference suppression method, apparatus, device, and storage medium. Background In satellite communications, in order to improve service range and communication capacity, a multi-beam phased array antenna is generally selected, each beam covering a certain range, and a plurality of beams covering the entire sub-satellite area. In order to avoid coverage holes, different beams overlap with each other by a part of areas, scheduling among different beams is performed according to the actual situation of a terminal, the different beams can be regarded as different cells in mobile communication, and the actual communication cell of the terminal in the beam overlapping area is solved by a cell boundary scheduling algorithm. For an antenna beam, its main operating area is the range covered by the 3dB bandwidth of the main lobe, but for other areas of the main lobe and the high energy first side lobe, the signal can still be received. For the situation that multiple beams are adjacent in an overlapping manner, part of main lobes and first side lobes among different beams are in the main lobe range of another beam, signals belonging to the first beam can enter the second beam, the signal to noise ratio of the signals of the second beam is reduced, the influence is that the influence is mutually reduced, and the signal to noise ratio of the first beam and the signal to noise ratio of the second beam are reduced. Because the beam shape of the wide angle beam can become elliptical, mutual interference among different beams can be aggravated, and for typical cellular beam coverage, the interference among different beams can reach more than 50% of the main beam, so that the same-frequency multi-beam communication can be caused, and the signal to noise ratio of signals can be influenced. Disclosure of Invention In view of the foregoing, it is desirable to provide a phased array beam interference suppression method, apparatus, device and storage medium capable of improving the interference resistance of co-frequency multi-beam communication. A phased array beam interference suppression method, the method comprising: According to the agreed configuration mode, after the phased array receives the beam switching instruction, the beam switching instruction is divided into a single beam switching instruction and a multi-beam switching instruction. The total interference of the target beam by the residual beam of the target beam is calculated. The total interference is compared to a minimum signal to noise threshold for the target beam. If the minimum signal-to-noise threshold is not met, interference suppression is performed on the interfering source to reconfigure the target beam. A phased array beam interference suppression apparatus, the apparatus comprising: the instruction switching module is used for dividing the beam switching instruction into a single beam switching instruction and a multi-beam switching instruction after the phased array receives the beam switching instruction according to the appointed configuration mode. And the total interference calculation module is used for calculating the total interference of the target beam by the residual beam of the target beam. And the target threshold acquisition module is used for comparing the total interference with the minimum signal-to-noise ratio threshold of the target beam. And the interference suppression module is used for executing interference suppression on the interference source to reconfigure the target beam if the minimum signal-to-noise ratio threshold is not met. A computer device comprising a memory storing a computer program and a processor which when executing the computer program performs the steps of: According to the agreed configuration mode, after the phased array receives the beam switching instruction, the beam switching instruction is divided into a single beam switching instruction and a multi-beam switching instruction. The total interference of the target beam by the residual beam of the target beam is calculated. The total interference is compared to a minimum signal to noise threshold for the target beam. If the minimum signal-to-noise threshold is not met, interference suppression is performed on the interfering source to reconfigure the target beam. A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of: According to the agreed configuration mode, after the phased array receives the beam switching instruction, the beam switching instruction is divided into a single beam switching instruction and a multi-beam switching instruction. The total interference of the target beam by the residual beam of the target beam is calcu