Particle swarm exchange long-time accumulation implementation method based on multi-core DSP

An implementation method, particle swarm technology, applied in the direction of reflection/re-radiation of radio waves, instruments, measuring devices, etc., can solve problems such as inapplicability to stealth targets, and achieve the effect of increasing power

Active Publication Date: 2020-06-12
SHANGHAI RADIO EQUIP RES INST
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Problems solved by technology

However, this method is only suitable for shipborne radars to track space targets, and is not su

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  • Particle swarm exchange long-time accumulation implementation method based on multi-core DSP
  • Particle swarm exchange long-time accumulation implementation method based on multi-core DSP
  • Particle swarm exchange long-time accumulation implementation method based on multi-core DSP

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[0069] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0070] Such as Figure 1-Figure 2 In combination with the shown, the present invention provides a method for implementing long-term accumulation of particle swarm exchange based on multi-core DSP. During long-term accumulation, the target cross-distance unit and Doppler unit will cause the accumulation detection performance to decline. The lo...

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Abstract

The invention discloses a particle swarm exchange long-time accumulation implementation method based on a multi-core DSP. During long time accumulation, a target cross-distance unit and a Doppler unitcan cause reduction of accumulation detection performance. The long-time accumulation module firstly segments target echo data to enable a target in each segment not to cross a distance unit and a Doppler unit, then uses a particle swarm exchange PSO algorithm to search parameters such as distance, speed and acceleration of particles, and iteratively searches global optimal particles to serve asthe distance, speed and acceleration of the target. The method is particularly suitable for increasing the radar action distance of stealth and other weak echo targets, good target detection performance can be obtained, and the radar action distance of stealth and other weak echo targets is equivalently increased.

Description

technical field [0001] The invention belongs to the technical field of signal processing and detection, and relates to a long-term accumulation method of particle swarm exchange based on multi-core DSP (Digital Signal Processing, digital signal processing) in the field of radar signal processing, and is especially suitable for improving stealth targets. Search targets on the missile-borne application platform with weak echo signal power. Background technique [0002] Long-term coherent accumulation is a coherent accumulation technology based on "focusing before detection", which can obtain good target detection performance and equivalently improve the radar range for stealth and other weak echo targets. The essence of the "focus before detection" technology is to realize the coherent accumulation of moving targets across distances and across Doppler units for a long time. The result of coherent accumulation can obtain the target echo energy in the required parameter space. ...

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Application Information

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IPC IPC(8): G01S7/41G01S13/50
CPCG01S7/415G01S13/50
Inventor 杨娜成思文朱剑于祥祯刘爱华王阳阳李盘虎
Owner SHANGHAI RADIO EQUIP RES INST
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