Wideband polynomial-phase parameter estimation in sensor array

Author

Lie, S. ; Leyman, A. Rahim ; Chew, Y.H.

Author_Institution

Dept. of Digital Wireless, Agency for Sci. & Technol. & Res., Singapore

fYear

2003

fDate

14-17 Dec. 2003

Firstpage

314

Lastpage

317

Abstract

This paper proposes a closed-form estimation technique for a wideband constant amplitude polynomial-phase signal embedded in white Gaussian noise. It is shown that it is possible to jointly estimate the highest order phase coefficient and direction of arrivals of the signal through a closed-form method. Hence it is, computationally, much simpler than maximum likelihood method which involves highly non-linear multidimensional optimization. Simulation and comparative results are included to show its effectiveness.

Keywords

AWGN; array signal processing; direction-of-arrival estimation; fast Fourier transforms; maximum likelihood estimation; optimisation; polynomials; closed-form estimation technique; closed-form method; direction of arrivals; maximum likelihood method; nonlinear multidimensional optimization; sensor array; white Gaussian noise; wideband polynomial-phase parameter estimation; Amplitude estimation; Direction of arrival estimation; Gaussian noise; Maximum likelihood estimation; Multidimensional systems; Parameter estimation; Phase estimation; Polynomials; Sensor arrays; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Information Technology, 2003. ISSPIT 2003. Proceedings of the 3rd IEEE International Symposium on

Print_ISBN

0-7803-8292-7

Type

conf

DOI

10.1109/ISSPIT.2003.1341123

Filename

1341123