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A parameter estimation method for linear amplitude modulated chirp signals based on Discrete Fractional Fourier Transform

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2 Author(s)
Sajib, S.Z.K. ; Alcatel-Lucent, Dhaka ; Mostayed, A.

A new parameter estimation method for linear amplitude modulated chirp signal is proposed. This method utilizes the discrete fractional Fourier transform (DFRFT) along with Radon Wigner transform (RWT) to estimate the amplitude and phase parameters of multi-component chirp signals. Expressions of DFRFT for estimating amplitude and initial phase parameters are derived. The chirp rate and initial frequency is estimated using RWT. Performance of the proposed method in noise is analyzed by Monte-Carlo simulation for different signal to noise ratio (SNR). Better performance was achieved at SNR as low as -10 dB.

Published in:
Electrical and Computer Engineering, 2008. ICECE 2008. International Conference on

Date of Conference: 20-22 Dec. 2008

Page(s):
380 - 385
E-ISBN :
978-1-4244-2015-5
Print ISBN:
978-1-4244-2014-8
INSPEC Accession Number:
10470159
Conference Location :
Dhaka
Digital Object Identifier :
10.1109/ICECE.2008.4769236
Product Type:
Conference Publications

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