会议专题

Comparison of Matched Filter and Dechirp Processing Used in Linear Frequency Modulation

Linear Frequency Modulation (LFM) is an important wideband signal, which is widely used in radar system. Both matched filter and dechirp processing can realize pulse compression of LFM, and then get high resolution target range profile. Matched filter has strong anti-noise ability; it can also achieve accurate pulse compression under seriously noisy environment. Dechirp processing can reduce the sample rate of AD efficiently, but the anti-noise ability is not as good as matched filter. This paper analyzes the algorithms of matched filter and dechirp processing which are used in LFM, then simulates the pulse compression to get high resolution target onedimension range profile under different signal to noise ratio (SNK). The simulation results indicate that matched filter has strong anti-noise ability, dechirp processing has advantage in sample rate of data processing by hardware. This work can provide the theory basis and guidance to select the best pulse compression method under different scenes.

matched filter dechirp processing pulse compression high resolution range profile

Jun Wang Duoduo Cai Yaya Wen

Department of Electronic and Information Engineering Beijing University of Aeronautics and Astronautics (BUAA) Beijing, China

国际会议

2011 IEEE 2nd International Conference on Computing,Control and Industrial Engineering(CCIE 2011)(第二届计算、控制与工业工程国际会议)

武汉

英文

70-73

2011-08-20(万方平台首次上网日期,不代表论文的发表时间)