基于Radon-Gabor變換的多分量LFM信號檢測與參數(shù)估計
Multicomponent LFM Signal Detection and Parameter Estimation Based on Radon-Gabor Transform
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摘要: 該文針對多分量線性調頻(LFM)信號,首先提出一種新的變換RadonGabor變換;然后闡述了用RadonGabor變換對LFM信號進行檢測和參數(shù)估計的基本原理,并結合逐次消去(Clean)技術提出了基于RadonGabor變換的多分量LFM信號檢測和參數(shù)估計實用算法。計算機仿真結果表明了該算法的有效性。Abstract: In this paper, a new transform called Radon-Gabor transform(RGT) is proposed firstly, then the basic theory is introduced for Linear Frequency-Modulated (LFM) signal detection and parameter estimation using Radon-Gabor transform. Moreover, a new method combining Radon-Gabor transform with clean technique for multicomponent LFM signal detection and parameter estimation is presented. The computer simulation results show its effectiveness.
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Boashash B, Black P. An efficient real-time implementation of the Wigner-Ville distribution.IEEE Trans. on ASSP, 1987, ASSP-35(11): 1611-1618.[2]Barbarossa S. Analysis of multicomponent LFM signals by a combined Wigner-Hough transform.IEEE Trans. on SP, 1995, SP-43(6): 1511-1515.[3]Xia Xiang Gen. Discrete chirp-Fourier transform and its application to chirp rate estimation.IEEE Trans. on SP, 2000, SP-48(11): 3122-3133.[4]Wang M, et al.. Linear frequency-modulated signal detection using Radon-ambiguity transform.IEEE Trans. on SP, 1998, SP-46(3): 571-587.[5]Mihovilovic D, Bracewell R N. Adaptive chirplet representation of signals on time-frequency plane[J].Electronics Letters.1991, 27(13):1159-1161[6]Tsao Jenho, Steinberg B D. Reduction of sidelobe and speckle artifacts in microwave imaging:the CLEAN technique. IEEE Trans. on AP, 1988, AP-36(4): 543-556.[7]張賢達,保錚.非平穩(wěn)信號分析與處理.北京:國防工業(yè)出版社,1998,第1版:1-180.[8]王宏禹.非平穩(wěn)隨機信號分析與處理.北京:國防工業(yè)出版社,1999,第1版: 126-173. -
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