Basic performance of space-surface bistatic SAR using BeiDou satellites as transmitters of opportunity

The basic performance of space-surface bistatic synthetic aperture radar (SS-BSAR) using BeiDou satellites as transmitters of opportunity is presented. The transmitted signal, the satellite trajectory, and the observation time are analyzed to demonstrate the potential of BeiDou satellites to be used...

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Bibliographic Details
Published in:GPS solutions 2017-04, Vol.21 (2), p.727-737
Main Authors: Shi, Shuzhu, Liu, Jingnan, Li, Tao, Tian, Weiming
Format: Article
Language:English
Subjects:
Atmospheric Sciences
Automotive Engineering
BeiDou Navigation Satellite System
Earth and Environmental Science
Earth orbits
Earth Sciences
Electrical Engineering
Geophysics/Geodesy
Geosynchronous satellites
Global navigation satellite system
Original Article
Satellite navigation systems
Satellite observation
Satellite orbits
Satellite systems
Satellites
Signal to noise ratio
Space Exploration and Astronautics
Space Sciences (including Extraterrestrial Physics
Synthetic aperture radar
Transmitters
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Summary:The basic performance of space-surface bistatic synthetic aperture radar (SS-BSAR) using BeiDou satellites as transmitters of opportunity is presented. The transmitted signal, the satellite trajectory, and the observation time are analyzed to demonstrate the potential of BeiDou satellites to be used as transmitters of SS-BSAR. When a BeiDou medium earth orbit (MEO) satellite is used, the signal-to-noise ratio and the resolution are examined for different SS-BSAR cases, where the receiver is fixed on the ground or mounted on a moving platform. Since the parameters of the BeiDou geostationary earth orbit (GEO) satellite and the inclined geosynchronous satellite orbit (IGSO) satellite are different from those of the MEO satellite, the peculiarities of SS-BSAR with the GEO or IGSO satellite as transmitter are analyzed and then compared with the case of MEO satellite. In order to show the performance difference of SS-BSAR with BeiDou satellites as transmitters, comparisons with other global navigation satellite system (GNSS) transmitters are also made. The theoretical results show that SS-BSAR using BeiDou satellites as transmitters can achieve different sounding performance and can provide some new potential applications compared to other GNSS transmitters.
ISSN:1080-5370
1521-1886
DOI:10.1007/s10291-016-0563-8