Coherent integration method of frequency agile radar for target detection

2017 ◽  
Author(s):  
Caiyong Lin ◽  
Ruiqi Tian ◽  
Qinglong Bao ◽  
Zengping Chen
Keyword(s):  
Target Detection ◽  
Integration Method ◽  
Coherent Integration ◽  
Frequency Agile

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

Long‐time coherent integration method for high‐speed target detection using frequency agile radar

2016 ◽  
Vol 52 (11) ◽  
pp. 960-962 ◽  
Author(s):  
Dinghe Wang ◽  
Caiyong Lin ◽  
Qinglong Bao ◽  
Zengping Chen
Keyword(s):  
Target Detection ◽  
High Speed ◽  
Integration Method ◽  
Coherent Integration ◽  
Frequency Agile ◽  
Long Time

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.

An Efficient Coherent Integration Method for Maneuvering Target Detection

2015 ◽  
Author(s):  
Xiaolong Li Xiaolong Li ◽  
Guolong Cui Guolong Cui ◽  
Wei Yi Wei Yi ◽  
Lingjiang Kong Lingjiang Kong
Keyword(s):  
Target Detection ◽  
Integration Method ◽  
Maneuvering Target ◽  
Coherent Integration

scholarly journals Coherent Integration Method of High-Speed Target for Frequency Agile Radar

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 18984-18993 ◽  
Author(s):  
Ruiqi Tian ◽  
Caiyong Lin ◽  
Qinglong Bao ◽  
Zengping Chen
Keyword(s):  
High Speed ◽  
Integration Method ◽  
Coherent Integration ◽  
Frequency Agile

Performance of the Target Detection Based on Instantaneous Frequency Time-Frequency Energy Integration

2011 ◽  
Vol 403-408 ◽  
pp. 1910-1913
Author(s):  
Chang Yun Liu ◽  
Peng Lang Shui ◽  
Lei Zhu ◽  
Shao Chun Yang
Keyword(s):  
Target Detection ◽  
Instantaneous Frequency ◽  
Integration Method ◽  
Energy Integration ◽  
Echo Signal ◽  
Time Frequency ◽  
Coherent Integration ◽  
Signal Parameters ◽  
And Performance ◽  
Energy Signal

The target detection feasibility and performance based on the TF energy integration are analyzed in this paper. Assuming the phase of signal is known, the time-frequency(TF) energy signal is got through TF transform, and the energy along the instantaneous frequency(IF) curve is integrated, the TF energy is used for target detection. Analytical and experimental results show that TF energy integration method based the target detection performance increases almost 6dB as compared to non-coherent integration, the advantage of the TF energy integration detection is that the echo signal parameters aren’t needed to be known.

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