Time-frequency esprit for direction-of-arrival estimation of chirp signals

被引：14
|
作者：
Hassanien, A [1 ]
Gershman, AB [1 ]
Amin, MG [1 ]
机构：
[1] McMaster Univ, Dept Elect & Comp Engn, Commun Res Lab, Hamilton, ON L8S 4K1, Canada
来源：
SAM2002: IEEE SENSOR ARRAY AND MULTICHANNEL SIGNAL PROCESSING WORKSHOP PROCEEDINGS | 2002年
关键词：
D O I：
10.1109/SAM.2002.1191056
中图分类号：
TP31 [计算机软件];
学科分类号：
081202 ; 0835 ;
摘要：
In this paper, we develop an ESPRIT-type algorithm for estimating the Directions-Of-Arrival (DOA's) of multiple chirp signals using Spatial Time-Frequency Distributions (STFD's). An averaged STFD matrix (or multiple averaged STFD matrices) are used instead of the covariance matrix to estimate the signal and noise subspaces. The proposed algorithm is shown to provide a significant performance improvement over the traditional ESPRIT algorithm for FM sources, specifically in situations with closely spaced sources and low Signal-to-Noise Ratios (SNR's). Simulation results are provided to illustrate the performance of the proposed approach in scenarios with multiple narrowband chirp sources.
引用
收藏
页码：337 / 341
页数：5
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