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Title: Matrix ill-condition analysis in spectrum recovery of DPCA HRWS SAR imaging
Authors: Ma, Changzheng
Hu, Xianyang
Yeo, Tat Soon
Ng, Boon Poh
Zhang, Qun
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2019
Source: Ma, C., Hu, X., Yeo, T. S., Ng, B. P. & Zhang, Q. (2019). Matrix ill-condition analysis in spectrum recovery of DPCA HRWS SAR imaging. IEEE Geoscience and Remote Sensing Letters, 16(1), 55-59.
Project: MOE2016-T2-1-070
Journal: IEEE Geoscience and Remote Sensing Letters
Abstract: Conventional single-platform spaceborne synthetic aperture radar has a conflict between wide imaging swath width and fine-cross-range resolution. Displaced phase center antennas is one method to overcome this limitation. For spectrum recovery of nonuniform sampling, a detailed analysis on the relationship between coefficient matrix singularity and the number of effective phase centers (EPCs) passed by the platform during one pulse repetition time (PRT) is given. When the distance passed by the platform during one PRT is multiple of the distance between two EPCs plus a small value, the coefficient matrix is singularity. An explicit expression of the coefficient matrix is also derived.
ISSN: 1545-598X
DOI: 10.1109/LGRS.2018.2867647
Rights: © 2018 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles

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