DOA Estimation of LFM Signal Based on the FRFT and MUSIC Algorithms

摘要：

A novel algorithm for the direction of arrival (DOA) estimation based on the Fractional Fourier transform (FRFT) and Multiple Signal Classification (MUSIC) is proposed. In this method, the observed signals are transformed to the fractional Fourier (FRF) domain, then we present an adaptive narrow band-pass filter from the measured signals themselves, using the superior time frequency localization. The time-varying direction matrix of the LFM signal can converge to time-invariant direction matrix. Then the direction estimation of LFM signals can be achieved by combining with the MUSIC method in the fractional Fourier (FRF) domain. Simulation results are provided to show the effectiveness of our method.

关键词： Direction of arrival LFM signal Fractional Fourier transform MUSIC

作者: Xuewei Lou Yali Qin Hongliang Ren Lieyong Ying

作者单位: Institute of Fiber-optic Communication and Information Engineering, College of Information Engineeri Institute of Fiber-optic Communication and Information Engineering, College of lnformation Engineeri

会议类型: 国际会议

会议名称: 2010 International Conference on Image Analysis and Signal Processing(2010 图像分析与信号处理国际会议 IASP 10)

会议地点: 厦门

会议语种:英文

页码: 157-160

在线出版日期: 2010-04-12（万方平台首次上网日期，不代表论文的发表时间）