Further study of the SDMP method for parameter estimation of multiple transients

Author

Evans, James B. ; Hua, Yingbo

Author_Institution

Dept. of Electr. & Electron. Eng., Melbourne Univ., Parkville, Vic., Australia

Volume

iv

fYear

1994

fDate

19-22 Apr 1994

Abstract

A variant of the subspace decomposition matrix pencil (SDMP) method for estimating the angles of arrival of multiple transient signals is presented. The transient signals we consider here are modeled as the sum of complex exponentials. The SDMP-variant uses the same approach of the SDMP method to find the temporal poles. Then the SDMP-variant carries out a 1-D search for finding the spatial parameters (d.o.r´s). The advantages of the SDMP-variant are (a) that there is no pairing routine required to match the estimated d.o.r´s to the signal poles, (b) the noise sensitivity performance is better, and (c) the computation is more efficient. A sensitivity analysis is used to determine the performance, which is supported by simulation

Keywords

direction-of-arrival estimation; exponential distribution; matrix decomposition; noise; pole assignment; transient analysis; SDMP method; SDMP-variant; angles of arrival; complex exponentials; computational efficiency; multiple transients; noise sensitivity performance; pairing routine; parameter estimation; simulation; spatial parameters; subspace decomposition matrix pencil method; temporal poles; transient signals; Amplitude estimation; Analytical models; Computational modeling; Delay effects; Delay estimation; Direction of arrival estimation; Matrix decomposition; Parameter estimation; Sensitivity analysis; Sensor arrays;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on

Conference_Location

Adelaide, SA

ISSN

1520-6149

Print_ISBN

0-7803-1775-0

Type

conf

DOI

10.1109/ICASSP.1994.389833

Filename

389833