The Precise Analytical Calculation Of Fourth-Order Doppler Parameters For Geosynchronous Sar
2017 4TH INTERNATIONAL CONFERENCE ON INFORMATION SCIENCE AND CONTROL ENGINEERING (ICISCE)(2017)
Abstract
Compared with current Low-Earth-Orbit spaceborne Synthetic Aperture Radar (LEO SAR), Geosynchronous SAR (GEO SAR) is featured in its ultra-high orbit and ultra-long integration time. Due to the non-linear property of the ultra-long synthetic aperture, the traditional Doppler parameter calculation methods based on the linear motion model are invalid for GEO SAR A precise analytical algorithm to calculate the fourth-order Doppler parameters for GEO SAR is proposed, analyzed and verified in this paper. We first proposed the analytical expression of fourth-order Doppler parameters for GEO SAR, and the results can be used in arbitrary ellipse orbit cases. Then, a precise fourth-order Doppler parameter calculation algorithm is developed based on the deduced formulae. Finally, the accuracy of the calculation algorithm is verified by processing real data of a drifted geostationary satellite experiment.
MoreTranslated text
Key words
Doppler parameters, Geosynchronous Synthetic Aperture Radar, fourth-order, Synthetic Aperture Radar
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined