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Impact of Oscillator Noise in Bistatic and Multistatic SAR

Krieger, Gerhard and Rodriguez Cassola, Marc and Younis, Marwan and Metzig, Robert (2005) Impact of Oscillator Noise in Bistatic and Multistatic SAR. In: IEEE Geoscience and Remote Sensing Symposium (IGARSS), 2, pp. 1043-1046. IEEE. Geoscience and Remote Sensing Symposium (IGARSS), 25-29 July 2005, Seoul, Korea.

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Official URL: http://ieeexplore.ieee.org/search/srchabstract.jsp?arnumber=1525293&isnumber=32596&punumber=10226&k2dockey=1525293@ieeecnfs&query=%28krieger+g.%3Cin%3Eau%29&pos=20


This paper addresses the impact of limited oscillator stability in bi- and multistatic SAR. Oscillator noise deserves special attention in distributed SAR systems, since there is no cancellation of low frequency phase errors as in a monostatic SAR, where the same oscillator signal is used for modulation and demodulation. We show that uncompensated phase noise may cause a time variant shift, spurious sidelobes, and a widening of the impulse response, as well as a low frequency phase modulation of the focused SAR signal. Quantitative estimates are derived analytically for each of these errors based on a systems theoretic model taking into account the second-order statistics of the oscillator phase noise.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Impact of Oscillator Noise in Bistatic and Multistatic SAR
AuthorsInstitution or Email of Authors
Krieger, GerhardUNSPECIFIED
Rodriguez Cassola, MarcUNSPECIFIED
Date:July 2005
Journal or Publication Title:IEEE Geoscience and Remote Sensing Symposium (IGARSS)
Refereed publication:No
In ISI Web of Science:No
Page Range:pp. 1043-1046
Keywords:SAR, bistatic, multistatic, synchronisation, phase noise, stochastic process, ISLR, interferometry
Event Title:Geoscience and Remote Sensing Symposium (IGARSS)
Event Location:Seoul, Korea
Event Type:international Conference
Event Dates:25-29 July 2005
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Entwicklung eines Mini-SAR (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Microwaves and Radar Institute > Spaceborne SAR Systems
Deposited By: Dr.-Ing. Gerhard Krieger
Deposited On:03 Apr 2007
Last Modified:12 Dec 2013 20:08

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