NDLI: The application of the principle of chirp scaling in processing stepped chirps in spotlight SAR

Content Provider	IEEE Xplore Digital Library
Author	Xin Nie Daiyin Zhu Xinhua Mao Ling Wang Zhaoda Zhu
Copyright Year	2009
Description	Author affiliation: College of Information Science and Technology, Nanjing University of Aeronautics & Astronautics, 210016, China (Xin Nie; Daiyin Zhu; Xinhua Mao; Ling Wang; Zhaoda Zhu)
Abstract	A new approach for processing stepped chirps in spotlight SAR is presented in this manuscript, which is based on exploiting the principle of chirp scaling (PCS). In particular the PCS is integrated in a Polar Format Algorithm (PFA), obtaining a more efficient solution compared with the existing interpolation based technique. The main contribution is the implementation of the azimuth scaling with the bandwidth synthesis embedded in, and it is developed dedicatedly for dealing with stepped chirps. The signal processing flow is investigated in detail, with no interpolations but only FFT's and complex multiplications involved, and point target simulation has validated the new approach based on PCS is feasible and more efficient than the existing interpolation based approach.
Starting Page	1
Ending Page	5
File Size	652579
Page Count	5
File Format	PDF
ISBN	9781424428700
ISSN	10975659
DOI	10.1109/RADAR.2009.4976979
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-05-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Chirp Personal communication networks Interpolation Bandwidth Azimuth Signal processing algorithms Signal synthesis Signal processing Synthetic aperture radar Information science
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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