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Journal of Applied Remote Sensing

Parameters estimation of sinusoidal frequency modulation signal with application in synthetic aperture radar imaging
Author(s): Yong Wang; Zhaofa Wang; Bin Zhao; Liang Xu
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Paper Abstract

A method for estimating the parameters of the sinusoidal frequency modulation (SFM) signal is presented in this paper. Based on the modified discrete sinusoid frequency modulation transform (DSFMT), the SFM signal can be transformed into the DSFMT domain where it is energy-concentrated and then the parameters can be estimated by the global maximum. To search for the location of the global maximum with less computational load, particle swarm optimization is used in this paper. Then the algorithm is used in the synthetic aperture radar imaging with high frequency vibration of the platform, and the focus performance can be improved significantly. Simulation results demonstrate the effectiveness of the method proposed in this paper.

Paper Details

Date Published: 31 May 2016
PDF: 8 pages
J. Appl. Rem. Sens. 10(2) 020502 doi: 10.1117/1.JRS.10.020502
Published in: Journal of Applied Remote Sensing Volume 10, Issue 2
Show Author Affiliations
Yong Wang, Harbin Institute of Technology (China)
Zhaofa Wang, Harbin Institute of Technology (China)
Bin Zhao, Harbin Institute of Technology (China)
Liang Xu, Harbin Institute of Technology (China)

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