NDLI: SAR Sensor Trajectory Deviations: Fourier Domain Formulation and Extended Scene Simulation of Raw Signal

Content Provider	IEEE Xplore Digital Library
Author	Franceschetti, G. Iodice, A. Perna, S. Riccio, D.
Copyright Year	1980
Abstract	Synthetic aperture radar (SAR) raw signal simulation is a useful tool for SAR system design, mission planning, processing algorithm testing, and inversion algorithm design. A two-dimensional (2-D) Fourier domain SAR raw signal simulator, exploiting the efficiency of fast Fourier transform algorithms, has been presented some years ago and is able to generate the raw signal corresponding to extended scenes. However, it cannot account for the effects of sensor trajectory deviations with respect to the nominal straight-line path. This paper explores the possibility of extending the efficient Fourier domain simulation approach to the case of sensor trajectory deviations, which is more realistic for airborne SAR systems. We first of all obtain a general and compact Fourier domain formulation of the SAR raw signal in the presence of arbitrary trajectory deviations, and show that in this general case no efficient simulation scheme can be devised. However, we demonstrate that, if a narrow beam and slow trajectory deviation assumption is made, a full 2-D Fourier domain simulation can be used. This approach can be applied only to some SAR systems and/or trajectory deviations, but it has the advantage that processing time is practically not increased with respect to the nominal trajectory case. The validity limits of the approach are analytically evaluated. Some simulation results are finally presented in order to verify the effectiveness of the proposed simulation scheme. In another paper, which is the second part of this work, it will be shown that the narrow beam-slow deviation assumption can be relaxed, at the expense of computation efficiency, if a one-dimensional azimuth Fourier domain processing followed by a range time-domain integration is used
Sponsorship	IEEE Geoscience and Remote Sensing Society IEEE URSI
Starting Page	2323
Ending Page	2334
Page Count	12
File Size	321351
File Format	PDF
ISSN	01962892
Volume Number	44
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Layout Synthetic aperture radar Computational modeling Signal processing Process planning System testing Signal design Algorithm design and analysis Two dimensional displays Fast Fourier transforms synthetic aperture radar (SAR) Motion compensation simulation
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences 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

Efficient simulation of airborne SAR raw data of extended scenes

Fast Raw-Signal Simulation of Extended Scenes for Missile-Borne SAR With Constant Acceleration

Efficient spotlight SAR raw signal simulation of extended scenes

Squint Spotlight SAR Raw Signal Simulation in the Frequency Domain Using Optical Principles

Precise Aperture-Dependent Motion Compensation with Frequency Domain Fast Back-Projection Algorithm

SARAS: a synthetic aperture radar (SAR) raw signal simulator

Trajectory deviations in airborne SAR: analysis and compensation

A New Improved Step Transform Algorithm for Highly Squint SAR Imaging

Wavenumber-Domain Autofocusing for Highly Squinted UAV SAR Imagery

SAR Sensor Trajectory Deviations: Fourier Domain Formulation and Extended Scene Simulation of Raw Signal

Similar Documents

Efficient simulation of airborne SAR raw data of extended scenes

Fast Raw-Signal Simulation of Extended Scenes for Missile-Borne SAR With Constant Acceleration

Efficient spotlight SAR raw signal simulation of extended scenes

Squint Spotlight SAR Raw Signal Simulation in the Frequency Domain Using Optical Principles

Precise Aperture-Dependent Motion Compensation with Frequency Domain Fast Back-Projection Algorithm

SARAS: a synthetic aperture radar (SAR) raw signal simulator

Trajectory deviations in airborne SAR: analysis and compensation

A New Improved Step Transform Algorithm for Highly Squint SAR Imaging

Wavenumber-Domain Autofocusing for Highly Squinted UAV SAR Imagery

SAR Sensor Trajectory Deviations: Fourier Domain Formulation and Extended Scene Simulation of Raw Signal