A Robust Signal Selective TDOA Estimation Algorithm for Cyclostationary Signals

摘要：

　　By exploiting cyclostationarity of received signals at certain cycle frequency,i.e.,evaluating the cyclic correlation or cyclic spectrum of the received signals at certain cycle frequency,the signal-selective time-difference-of-arrival (TDOA) estimation algorithms which based on cyclic statistics are highly tolerant to the interference and Gaussian noise.However,conventional cyclostationary TDOA methods based on the second-order cyclic correlation function or cyclic spectrum will degenerate severely in impulsive noise.In this paper,a new time delay estimation algorithm based on the fractional lower-order statistics (FLOS) and cyclostationarity is proposed for communications signals under non-Gaussian alpha stable distribution impulsive noise.Simulation results show that the proposed method is efficient and stable,and it outperforms the cyclostationarity based multi-cycle and FLOS based methods under impulsive noise and interference.

关键词： time difference of arrival estimation fractional lower-order statistics cyclostationarity impulsive noise

作者: Yang Liu Tianshuang Qiu

作者单位: College of Electronic and Information Engineering Inner Mongolia University Faculty of Electronic In Faculty of Electronic Information and Electrical Engineering Dalian University of Technology Dalian,

会议类型: 国际会议

会议名称: 2012 IEEE 14th International Conference on Communication Technology(2012年第十四届通信技术国际会议(ICCT 2012))

会议地点: 成都

会议语种:英文

页码: 1115-1119

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）