GPS Solutions

, Volume 21, Issue 2, pp 727–737 | Cite as

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

Original Article
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Abstract

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.

Keywords

BeiDou satellites Radar signal analysis Signal-to-noise ratio Space-surface bistatic synthetic aperture radar Synthetic aperture radar 
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Notes

Acknowledgments

The authors would like to thank the anonymous reviewers for their helpful comments. This work was supported in part by the Chinese Postdoctoral Science Foundation under Grant 2015T80834 and in part by the National Natural Science Foundation of China under Grant 41504007.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  1. 1.School of Remote Sensing and Information EngineeringWuhan UniversityWuhanChina
  2. 2.Research Center of GNSSWuhan UniversityWuhanChina
  3. 3.School of Information and ElectronicsBeijing Institute of TechnologyBeijingChina

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