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Title: An accurate imaging and doppler chirp rate estimation algorithm for airborne CSSAR-GMTI systems
Authors: Li, Yongkang
Liu, Baochang
Wang, Lei
Chen, Hongmeng
Nie, Laisen
Zeng, Lina
Bi, Guoan
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2019
Source: Li, Y., Liu, B., Wang, L., Chen, H., Nie, L., Zeng, L., & Bi, G. (2019). An accurate imaging and doppler chirp rate estimation algorithm for airborne CSSAR-GMTI systems. IEEE Access, 7, 170077-170086. doi:10.1109/ACCESS.2019.2955718
Journal: IEEE Access
Abstract: Airborne circular stripmap synthetic aperture radar (CSSAR)-ground moving target indication (GMTI) systems are attractive tools for air-to-ground surveillance and monitoring, because of their advantages of short revisit time and large coverage. This paper proposes an accurate imaging and Doppler chirp rate estimation algorithm for the airborne CSSAR-GMTI system with high range resolution. A key step of this algorithm is to utilize an alternation strategy to implement the correction of the target's range cell migration and the estimation of the range equation's quadratic coefficient alternatively. This step enables the proposed algorithm to achieve an accurate imaging and Doppler chirp rate estimation of a ground moving target. In addition, this paper presents an investigation on the accuracy of the quadratic-approximated range equation for ground moving target imaging. Numerical experiments are conducted to validate the proposed algorithm.
ISSN: 2169-3536
DOI: 10.1109/ACCESS.2019.2955718
Rights: © 2019 IEEE. This journal is 100% open access, which means that all content is freely available without charge to users or their institutions. All articles accepted after 12 June 2019 are published under a CC BY 4.0 license, and the author retains copyright. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, as long as proper attribution is given.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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