A radar imaging algorithm based on stepped-frequency signal

2009 ◽  
Author(s):  
Zhang Linxi ◽  
Ren Jie ◽  
Hu Chufeng ◽  
Li Nanjing
Keyword(s):  
Radar Imaging ◽  
Frequency Signal ◽  
Imaging Algorithm ◽  
Stepped Frequency

A Fast Stepped-frequency Chirp Radar Imaging Method Based on NuFFT

2015 ◽  
Author(s):  
Kai Zhang Kai Zhang ◽  
Cheng Hu Cheng Hu ◽  
Changjiang Liu Changjiang Liu ◽  
Yin Xiang Yin Xiang
Keyword(s):  
Radar Imaging ◽  
Imaging Method ◽  
Frequency Chirp ◽  
Stepped Frequency

Zonal Imaging Algorithm of Range-Speed Target Based on the LMSF Radar Signal

2012 ◽  
Vol 263-266 ◽  
pp. 462-467
Author(s):  
Yu Qiong Li ◽  
Song Hua He ◽  
Guang Zhu Li ◽  
Jianping Ou ◽  
Jun Zhang
Keyword(s):  
Theoretical Model ◽  
Coupling Effect ◽  
Recognition Algorithm ◽  
Automatic Recognition ◽  
Radar Signal ◽  
Imaging Algorithm ◽  
Range Profile ◽  
Range Spread ◽  
Stepped Frequency ◽  
Wideband Radar

The automatic recognition of range-spread target is based on its range profile. When obtaining its range profile by using synthetic wideband radar signal, the different-range scatters would be overlapped because of the range-doppler coupling effect. The overlapping effect affects the ability of the automatic recognition algorithm. According to this, based on the Linearly Modulated Stepped Frequency (LMSF) radar signal, coherent processing of range profiles to obtain zonal image of range-spread target is proposed in this paper, which avoids the overlapping effect. The theoretical model of the zonal image of range-spread target is presented, the signal processing flow is derived, and the simulation result of zonal image is also given in this paper.

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