A CLOSED-FORM WIDEBAND DIRECTION-OF-ARRIVAL ESTIMATION WITH CHIRPLET-BASED ADAPTIVE SIGNAL DECOMPOSITION ALGORITHM

作     者：Feng Aigang Yin Qinye Wu Xiaojun Zhao Zheng(Institute of Information Engineering , Xi’an Jiaotong University, Xi’an 710019) Feng Aigang Yin Qinye Wu Xiaojun Zhao Zheng(Institute of Information Engineering , Xi’an Jiaotong University, Xi’an 710019)

作者机构：Institute of Information Engineering Xi'an Jiaotong University Xi'an 710049 

出 版 物：《Journal of Electronics(China)》 (电子科学学刊(英文版))

年 卷 期：2003年第20卷第1期

页      面：1-7页

学科分类：11[军事学] 0810[工学-信息与通信工程] 1105[军事学-军队指挥学] 08[工学] 081002[工学-信号与信息处理] 110503[军事学-军事通信学] 

基　　金：Partially supported by the National Natural Science Foundation(No.69872029)and the Research Fund for Doctoral Program of Higher Education(No.1999069808) of China 

主　　题：Time-frequency analysis Adaptive algorithm DOA estimation 

摘      要：The Direction-Of-Arrival (DOA) estimation with Coherent Signal Subspace (CSS)is not easy to cxtend from narrowband to wideband ***-frequency analysis is a powerfultechnique to deal with time-variant or non-stationary signal. Its combination with CSS exploresa new field in signal processing, especially the wideband DOA estimation. The chirp function isone of the most fundamental functions in nature. Many nature events can be modeled as chirpletfunction, such as radar system or scismic ***,the chirplet-based signal decomposi-