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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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Abstract
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 | ||||||||||
| Authors: |
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| Date: | July 2005 | ||||||||||
| Journal or Publication Title: | IEEE Geoscience and Remote Sensing Symposium (IGARSS) | ||||||||||
| Refereed publication: | No | ||||||||||
| In SCOPUS: | No | ||||||||||
| In ISI Web of Science: | No | ||||||||||
| Volume: | 2 | ||||||||||
| Page Range: | pp. 1043-1046 | ||||||||||
| Publisher: | IEEE | ||||||||||
| Status: | Published | ||||||||||
| 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 | ||||||||||
| Organizer: | IEEE | ||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||
| HGF - Program: | Space | ||||||||||
| 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: | 14 Jan 2010 20:31 |
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