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Impact of Oscillator Noise in Bistatic and Multistatic SAR

Krieger, Gerhard and Younis, Marwan (2006) Impact of Oscillator Noise in Bistatic and Multistatic SAR. IEEE Geoscience and Remote Sensing Letters, 3 (3), pp. 424-428. IEEE. DOI: 10.1109/LGRS.2006.874164.

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Official URL: http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?isnumber=34710&arnumber=1658019&count=37&index=30


This letter addresses the impact of limited oscillator stability in bistatic and multistatic synthetic aperture radars (SARs). 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. It is shown that the uncompensated phase noise may cause a time-variant shift, spurious sidelobes, and a broadening 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 system-theoretic model taking into account the second-order statistics of the oscillator phase noise.

Document Type:Article
Additional Information:©2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE
Title:Impact of Oscillator Noise in Bistatic and Multistatic SAR
AuthorsInstitution or Email of Authors
Krieger, GerhardUNSPECIFIED
Date:July 2006
Journal or Publication Title:IEEE Geoscience and Remote Sensing Letters
Page Range:pp. 424-428
Keywords:Bistatic radar, interferometry, multistatic radar, oscillator, phase noise, synchronization, synthetic aperture radar
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:24 Jul 2006
Last Modified:12 Dec 2013 20:08

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