Distance ambiguity suppression method based on particle swarm optimization and optimal beam forming method

A beamforming and particle technology, applied in the field of radar, can solve problems such as limiting SAR performance, and achieve the effect of enhancing the degree of suppression

Pending Publication Date: 2021-10-01
AEROSPACE INFORMATION RES INST CAS
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Problems solved by technology

In the full polarization mode represented by the hybrid circular polarization mode, some range ambiguity components will become extremely strong, which seriously limits the performance of SAR, and must be improved by introducing a range ambiguity suppression method

Method used

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  • Distance ambiguity suppression method based on particle swarm optimization and optimal beam forming method
  • Distance ambiguity suppression method based on particle swarm optimization and optimal beam forming method
  • Distance ambiguity suppression method based on particle swarm optimization and optimal beam forming method

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Embodiment Construction

[0020] Further elaborated technical solution of the disclosure in conjunction with the accompanying drawings and embodiments below.

[0021] figure 1 Flow diagram of an embodiment of the present application provides a method of blur suppression particle swarm from the optimal beam and synthesis based embodiment, such as figure 1 As shown, the method includes:

[0022] Step 102: acquiring key parameter values ​​of each particle in the sample corresponding to the sample group;

[0023] Wherein, the group can be called the sample particle group, particles of the particle group composed of a plurality of samples, each sample of particles are a vector; In one embodiment, the population of particles may be composed of N samples of particles, the said particle sample S n You can use the following equation (1):

[0024]

[0025] Incidentally, it is possible, for each particle sample according to a predetermined rule mapping designed the following formula (2), the key parameter values ​...

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Abstract

The embodiment of the invention discloses a distance ambiguity suppression method and device based on a particle swarm algorithm and an optimal beam forming method, electronic equipment and a storage medium. The method comprises the following steps: acquiring a key parameter value corresponding to each particle sample in a sample group; according to a preset radar signal parameter value and the key parameter value corresponding to each particle sample, determining a receiving directional diagram of the corresponding particle sample by applying an optimal beam forming method; according to the receiving directional diagram of each particle sample, determining the fitness of the corresponding particle sample; sorting the particle samples according to the fitness of each particle sample, and determining the optimal particle sample of the iteration; and under the condition that the fitness of the optimal particle sample of the current iteration does not meet the specific condition, updating the sample group and performing a new round of iteration according to the fitness of the optimal particle sample of the current iteration, and repeating the iteration until the fitness of the optimal particle sample meets the specific condition.

Description

Technical field [0001] The present application relates to the field of radar technology, but not limited to, one relates Particle Swarm optimum beam distance method of synthesis blur suppression method, apparatus, electronic apparatus and a storage medium. Background technique [0002] SAR (Synthetic Aperture Radar, SAR) is an active microwave imaging apparatus, as compared with more penetrating lidar, may be achieved when the all-weather earth observation, has wide application in the field of remote sensing. SAR to obtain high-resolution image signal by processing the Doppler signal and a wideband pulse position, since the elevation antenna pattern (also called antenna pattern) next to the inevitable presence of the flap, when receiving the received echo is likewise swath external echo, affect the final image quality, such interference is referred to as range ambiguity. In mixed circularly polarization mode, represented by the full polarization mode, range ambiguity component pa...

Claims

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Application Information

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IPC IPC(8): G01S7/36G01S7/41G01S13/90G06N3/00
CPCG01S7/36G01S7/41G01S13/90G06N3/006
Inventor 杨策欧乃铭邓云凯王宇刘大成
Owner AEROSPACE INFORMATION RES INST CAS
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