elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Unambiguous SAR Imaging for Nonuniform DPC Sampling: Lq Regularization Method Using Filter Bank

Quan, X. and Zhang, B. C. and Zhu, Xiao Xiang and Wu, Y. (2016) Unambiguous SAR Imaging for Nonuniform DPC Sampling: Lq Regularization Method Using Filter Bank. IEEE Geoscience and Remote Sensing Letters, 13 (11), pp. 1596-1600. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/LGRS.2016.2596902. ISSN 1545-598X.

Full text not available from this repository.

Official URL: http://ieeexplore.ieee.org/document/7551218/

Abstract

The displaced phase center antenna (DPCA) technique is a classical method for achieving high-resolution wide-swath synthetic aperture radar (SAR) imaging. For optimum performance, the pulse repetition frequency (PRF) of DPCA SAR systems should satisfy the azimuth uniform sampling condition as far as possible. However, this rigid PRF selection may conflict with the timing diagram for some incidence angles, which usually results in a nonuniform sampling of the synthetic aperture. According to the sparse signal processing theory, this letter proposes a novel DPCA imaging algorithm for the nonuniform displaced phase center sampling. By combining the DPCA data processing operator based on a filter bank with the ℓq regularization scheme, the algorithm can efficiently recover the backscattering coefficients of the observed scene. The experimental results have shown that it is capable of resolving ambiguity and suppressing clutter effectively and is meanwhile insensitive to additive noise.

Item URL in elib:https://elib.dlr.de/103108/
Document Type:Article
Title:Unambiguous SAR Imaging for Nonuniform DPC Sampling: Lq Regularization Method Using Filter Bank
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Quan, X.UNSPECIFIEDUNSPECIFIED
Zhang, B. C.UNSPECIFIEDUNSPECIFIED
Zhu, Xiao XiangDLR-IMF/TUM-LMFUNSPECIFIED
Wu, Y.UNSPECIFIEDUNSPECIFIED
Date:November 2016
Journal or Publication Title:IEEE Geoscience and Remote Sensing Letters
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:13
DOI :10.1109/LGRS.2016.2596902
Page Range:pp. 1596-1600
Editors:
EditorsEmailEditor's ORCID iD
Frery, Alejandro C.Ufal - Universidade Federal de Alagoas; BrazilUNSPECIFIED
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:1545-598X
Status:Published
Keywords:SAR imaging
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Vorhaben hochauflösende Fernerkundungsverfahren (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > SAR Signal Processing
Deposited By: Ge, Nan
Deposited On:17 Feb 2016 13:44
Last Modified:08 Mar 2018 18:31

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.