记笔记

The Cyclostationary Characteristic Analysis of the TimeFrequency Overlapped Signal in Single-Channel

Zhibin Yu¹Yongkui Sun¹Ningyu Yu²

1. School of Electrical Engineering,Southwest Jiaotong University 2. The Second Artillery Engineering Institute

摘要：the characteristic analysis of the time-frequency overlapped signal（TFOS） in single-channel is a powerful challenge in electronic countermeasures.So,in this paper,the time-frequency overlapped degrees（P_t,P_f） of signals are proposed to measure the level overlapped of in time domain and frequency domain.Afterwards,based on cyclostationary principle,the proposition about the cyclostationary characteristic of TFOS is proved.Moreover,the cyclic spectrum of TFOS is deduced.Theoretical analysis and experimental results show that the linear sum of multicyclostationary signals is still cyclostationary signal.

关键词：

time-frequency overlapped degree; cyclostationary; cyclic spectrum density; single-channel signal;

基金：

supported by a grant from the National Natural Science Foundation of China（No.60971103）； the Fundamental Research Funds for the Central Universities（NO.SWJTU11BR026）；

会议名称：

2011 2nd International Conference on Advances in Energy Engineering（ICAEE）

会议时间：

2011-12-27

会议地点：

Bangkok,Thailand