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An optimisation approach to robust estimation of mulitcomponent polynomial phase signals in non-Gaussian noise

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Authors
Pham, DucSon
Leung, Yee-Hong
Teo, Kok
Zoubir, A.
Date
2006
Type
Conference Paper

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Pham, Duc and Leung, Yee-Hong and Teo, Kok Lay and Zoubir, Abdelhak. 2006. An optimisation approach to robust estimation of mulitcomponent polynomial phase signals in non-Gaussian noise, in Proceedings of the IEEE Asia-Pacific Conference on Circuits and Systems 2006. (ed), IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2006), Dec 4 2006, pp. 832-835. Singapore: IEEE Computer Society.
Source Title
Proceedings of the IEEE Asia-Pacific Conference on circuits and systems 2006
Source Conference
IEEE Asia-Pacific Conference on circuits and systems 2006
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School of Electrical Engineering and Computing
Department of Electrical and Computer Engineering
Faculty of Science and Engineering
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Abstract

In this paper, we address the problem of estimating the parameters of multicomponent polynomial phase signals in impulsive noise which arises in many practical situations. In the presence of this non-standard noise, existing techniques perform can poorly. We propose a nonlinear M-estimation approach to improve the existing techniques. The phase parameters are obtained by solving a nonlinear optimisation problem. A procedure is proposed to find the global minimum at low computational cost. Simulation examples show the proposed method performs better than existing methods