scholarly journals Fast coherent integration method for moving target detection with random PRI variation

2020 ◽  
Vol 56 (1) ◽  
pp. 41-43
Author(s):  
Weiqiang Zhu ◽  
Zhiling Liu ◽  
Huajian Xu
Keyword(s):  
Target Detection ◽  
Integration Method ◽  
Moving Target ◽  
Moving Target Detection ◽  
Coherent Integration

A Coherent Integration Method for Moving Target Detection Using Frequency Agile Radar

2019 ◽  
Vol 16 (2) ◽  
pp. 206-210 ◽  
Author(s):  
Penghui Huang ◽  
Shuoshuo Dong ◽  
Xingzhao Liu ◽  
Xue Jiang ◽  
Guisheng Liao ◽  
...  
Keyword(s):  
Target Detection ◽  
Integration Method ◽  
Moving Target ◽  
Moving Target Detection ◽  
Coherent Integration ◽  
Frequency Agile

scholarly journals Coherent Integration Method Based on Radon-NUFFT for Moving Target Detection Using Frequency Agile Radar

Sensors ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 2176
Author(s):  
Jiameng Pan ◽  
Qian Zhu ◽  
Qinglong Bao ◽  
Zengping Chen
Keyword(s):  
Fourier Transform ◽  
Target Detection ◽  
Integration Method ◽  
Phase Fluctuation ◽  
Low Rank ◽  
Moving Target ◽  
Low Rank Approximation ◽  
Coherent Integration ◽  
Frequency Agile ◽  
Rank Approximation

This paper considers the coherent integration problem for moving target detection using frequency agile (FA) radar, involving range cell migration (RCM) and the nonuniform phase fluctuations among different pulses caused by range-agile frequency (R-AF) coupling and velocity-time-agile frequency (V-T-AF) coupling. After the analysis of the term corresponding to the phase fluctuation caused by V-T-AF coupling, the term can be regarded as related to an equivalent non-uniform slow time, and nonuniform fast Fourier transform (NUFFT) could be the solution. So a fast coherent integration method combining Radon Fourier transform (RFT) and NUFFT based on low-rank approximation, i.e., Radon-NUFFT, is proposed. In this method, the RCM is solved by Radon algorithm via target trajectory searching, the non-uniform phase fluctuation caused by R-AF coupling is compensated by constructing a compensation item corresponding to the range and agile frequency. In addition, the compensation of the non-uniform phase fluctuation caused by V-T-AF coupling is converted into a problem of spectral analysis of non-uniform sampling complex-valued signal, which is solved by the NUFFT based on low rank approximation. Compared with the existing methods, the proposed method can realize the coherent integration for FA radar accurately and quickly. The effectiveness of the proposed method is verified by simulation experiments.

scholarly journals Coherent integration for uniformly moving target detection

2018 ◽  
Vol 54 (11) ◽  
pp. 712-714 ◽  
Author(s):  
Yesheng Gao ◽  
Penghui Huang ◽  
Xingzhao Liu
Keyword(s):  
Target Detection ◽  
Moving Target ◽  
Moving Target Detection ◽  
Coherent Integration
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