Time delay estimation of chirp signal under chaotic environment

摘要：

In this paper, the adaptive time delay estimation algorithm based on wavelet transform is presented by combing the multiresolution wavelet analysis and LMS algorithm. Furthermore, the validity of this algorithm is studied to estimate the time delay of the chirp signal which is under the chaotic environment. The experimental result shows that the time delay could be estimated precisely despite the SCR (Signal to Chaotic signal Ratio) below -40dB. When this algorithm is applied to the chaotic background which includes Gaussian white noise (SNR=-5dB and SCR=-12dB), the time delay could also be estimated precisely, but the performance of the algorithm drops.

关键词： wavelet analysis time delay estimation chaotic signal

作者: Xing Hongyan Tang Juan Xu Wei

作者单位: School of Electronics and Information Engineering,Nanjing University of Information Science & Technology

会议类型: 国际会议

会议名称: 第八届国际电子测量与仪器学术会议(Proceedings of 2007 8th International Conference on Electronic Measurement & Instruments)

会议地点: 西安

会议语种:英文

在线出版日期: 2007-08-16（万方平台首次上网日期，不代表论文的发表时间）