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Journal of Applied Remote Sensing

Improved nonlinear chirp scaling algorithm for dechirped missile-borne synthetic aperture radar
Author(s): Si Chen; Shuning Zhang; Huichang Zhao; Xingang Zhou; Yong Chen
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Paper Abstract

An improved nonlinear chirp scaling (NLCS) algorithm for dechirped missile-borne synthetic aperture radar was proposed. The key step is to use an improved NLCS operation to equalize azimuth frequency modulation rate after linear range walk correction, secondary range compression, and range compression. By adopting a higher-order approximation, the image has better accuracy and less distortion. Validity of the algorithm is demonstrated using simulated and real datasets. Moreover, the whole procedure only consists of fast Fourier transform and complex multiplication, which means easier implementation and higher efficiency.

Paper Details

Date Published: 18 December 2014
PDF: 17 pages
J. Appl. Remote Sens. 8(1) 083505 doi: 10.1117/1.JRS.8.083505
Published in: Journal of Applied Remote Sensing Volume 8, Issue 1
Show Author Affiliations
Si Chen, Nanjing Univ. of Science and Technology (China)
Shuning Zhang, Nanjing Univ. of Science and Technology (China)
Huichang Zhao, Nanjing University of Science and Technology (China)
Xingang Zhou, Nanjing Univ. of Science and Technology (China)
Communication Network Technology Management Ctr. of Nanjing Integrated Military Region (China)
Yong Chen, Nanjing Univ. of Science and Technology (China)


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