NDLI: Object-level SAR imaging method with canonical scattering characterisation and inter-subdictionary interferences mitigation

Content Provider	IET Digital Library
Author	Cong, Xunchao Gui, Guan Li, Xiao Wen, Gongjian Huang, Xiaohong Wan, Qun
Abstract	Under the assumption of ideal-point scattering model, conventional developed synthetic aperture radar (SAR) imaging techniques often ignore frequency/angle dependence, which may result in scattering estimation inaccurate and object-level information loss. To solve the problem, in this study, the authors propose an object-level SAR imaging method by virtual of sparse representations and canonical shape feature models. Specifically, the representation basis vectors are combined with parametric scattering models for characterising angle/frequency dependence, so that they can accurately capture physically relevant scattering geometry information. To acquire high-quality object-level SAR image and mitigate the inter-subdictionary interferences, the authors propose a regularisation algorithm to take advantage of the inherent prior information including the sparsity of coefficient vector and the interaction nature between different spatial locations. The advantages of the proposed method can be summarised as follows: (i) by using the location-wise coordinate descent strategy, it can save memory cost and also reduce computation complexity in comparison with the direct solving the full inverse problem; and (ii) it can effectively acquire more parsimonious representation in the number of spatial locations and canonical scattering type information of strong scattering points such as top-hats and trihedral. Finally, experimental results are provided to demonstrate the validity of the proposed method.
Starting Page	784
Ending Page	790
Page Count	7
ISSN	17518784
Volume Number	10
e-ISSN	17518792
Issue Number	Issue 4, Apr (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/10/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2015.0385
Journal	IET Radar, Sonar & Navigation
Publisher Date	2016-04-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Angle/frequency Dependence Canonical Scattering Characterisation Canonical Shape Feature Model Computation Complexity Reduction Computational Complexity Electromagnetic Compatibility Electromagnetic Wave Scattering Feature Extraction Ideal-point Scattering Model Image Recognition Image Representation Interference Interference Suppression Intersubdictionary Interference Mitigation Location-wise Coordinate Descent Strategy Memory Cost Saving Object-level Information Loss Object-level SAR Imaging Method Radar Equipment Radar Imaging Radar Interference Regularisation Algorithm Representation Basis Vector Sparse Representation Synthetic Aperture Radar Synthetic Aperture Radar Imaging Technique System And Application
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Polarimetric object-level SAR imaging method with canonical scattering characterisation by exploiting joint sparsity

Decorrelation in GEO SARs due to radio frequency interferences

Feature-enhanced SAR imaging algorithm based on attributed scatttering centre models for man-made radar targets

L q regularisation-based synthetic aperture radar image feature enhancement via iterative thresholding algorithm

Application of feature modelling method based on SAR image in target interpretation

SAR imaging model of low-flying airplane target at complex maritime scene

Wavefront feature extraction for SAR target recognition

Hierarchical Feature-Based Detection Method for SAR Targets Under Complex Environment

Wide-band interference mitigation algorithm for SAR based on time-varying filtering and sparse recovery

Object-level SAR imaging method with canonical scattering characterisation and inter-subdictionary interferences mitigation

Similar Documents

Polarimetric object-level SAR imaging method with canonical scattering characterisation by exploiting joint sparsity

Decorrelation in GEO SARs due to radio frequency interferences

Feature-enhanced SAR imaging algorithm based on attributed scatttering centre models for man-made radar targets

L q regularisation-based synthetic aperture radar image feature enhancement via iterative thresholding algorithm

Application of feature modelling method based on SAR image in target interpretation

SAR imaging model of low-flying airplane target at complex maritime scene

Wavefront feature extraction for SAR target recognition

Hierarchical Feature-Based Detection Method for SAR Targets Under Complex Environment

Wide-band interference mitigation algorithm for SAR based on time-varying filtering and sparse recovery

Object-level SAR imaging method with canonical scattering characterisation and inter-subdictionary interferences mitigation