Micro-Doppler Extraction of Frequency-Stepped Chirp Signal Based on the Hough Transform
The micro-Doppler (m-D) effect induced by the rotating parts in a radar target or mechanical vibrations of the target body provides a new approach for auto target recognition.In this paper,the m-D effect in frequency-stepped chirp signal is analyzed.Compared with that in the traditional chirp signal,the m-D effect in frequency-stepped chirp signal appears some new characteristics.To extract these m-D characteristics and so to obtain the micro-motion information of the target for auto recognition,the Extended Hough Transform is applied into detecting the parameters of the curves on the range-slow time plane after the analytical expressions of the curves deduced.Computer simulations have proved the validity of the proposed method.
Ying Luo Liang Zhou Yong-zhao Lin Qun Zhang You-qing Bai
Inst.of Telecommunication Engineering,Air Force Engineering University,Xian 710077,China Beijing Special Vehicle Institute,Beijing,100072,China Inst.of Science,Air Force Engineering University,Xian 710051,China
国际会议
昆明
英文
2008-11-01（万方平台首次上网日期，不代表论文的发表时间）