Research on Signal Separation Method for Moving Group Target Based on Blind Source Separation
Liang Man, Chenxi Zhu · 2023
In response to the requirements of air motion group target recognition and tracking, this article deeply analyzes the radar echo characteristics of motion group targets, studies blind source signal separation technology, as well as group target quantity estimation and signal separation methods based on blind source signal separation, to achieve the resolution of different targets in the motion target group. Firstly, research was conducted on the estimation method of underdetermined mixed matrix based on time-frequency single source point detection in the case of underdetermined reception. The estimation of group target number parameters was achieved, and accurate mixed matrix estimation was obtained, laying the foundation for source signal reconstruction. Then, research was conducted on the algorithm for recovering underdetermined source signals based on compressed sensing, achieving the separation of echo signals from moving group targets, providing technical support for detecting and recognizing moving group targets