Eliminating ghost images for stepped-frequency train of LFM pulses

2007 ◽  
Author(s):  
Y.M. Liu ◽  
H.D. Meng ◽  
H. Zhang ◽  
X.Q. Wang
Keyword(s):  
Stepped Frequency ◽  
Frequency Train ◽  
Ghost Images

Study on Imaging Algorithm for Stepped-Frequency Chirp Train Waveform

2013 ◽  
Vol 347-350 ◽  
pp. 1101-1105
Author(s):  
Liang Wang ◽  
Chao Xuan Shang ◽  
Qiang He ◽  
Zhuang Zhi Han ◽  
Hong Wei Ren
Keyword(s):  
Matched Filter ◽  
Sampling Frequency ◽  
Frequency Chirp ◽  
Imaging Algorithm ◽  
Range Profile ◽  
Filter Operation ◽  
Close Range ◽  
Stepped Frequency ◽  
High Resolution Range Profile ◽  
Ghost Images

A range profile synthetic algorithm of the stepped-frequency chirp train waveform is designed to obtain HRRP (High Resolution Range Profile) in this paper. Based on waveform model, grating lobes restraining method is proposed with the help of autocorrelation function. Due to the matched filter operation, image energy spill over the close range bins, which causes “ghost images”. Set parameters of inner pulse bandwidth, stepped frequency and chirp compression envelop sampling frequency properly, and then carry the synthetic algorithm, the “ghost images” are restrained. All of the results are validated by simulation.

Overlapped stepped frequency train of flam pulses for microwave imaging

2015 ◽  
pp. 3-6
Author(s):  
K.V. Nikitin ◽  
A. Dewantari ◽  
S.Y. Jeon ◽  
T.Y. Lee ◽  
S. Kim ◽  
...  
Keyword(s):  
Microwave Imaging ◽  
Stepped Frequency ◽  
Frequency Train

A New OFDM Phase-coded Stepped-frequency Radar Signal and Its Characteristic

2011 ◽  
Vol 33 (3) ◽  
pp. 677-683 ◽  
Author(s):  
Kai Huo ◽  
Wei-dong Jiang ◽  
Xiang Li ◽  
Jun-jie Mao
Keyword(s):  
Radar Signal ◽  
Stepped Frequency
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