A New Range Migration Correction Algorithm and Its Simulation for SAR Altimeter

Wang Lei; Xu Ke; Shi Ling-wei; Yang Shuang-bao

doi:10.11999/JEIT150282

Volume 37 Issue 11

Nov. 2015

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Wang Lei, Xu Ke, Shi Ling-wei, Yang Shuang-bao. A New Range Migration Correction Algorithm and Its Simulation for SAR Altimeter[J]. Journal of Electronics & Information Technology, 2015, 37(11): 2713-2718. doi: 10.11999/JEIT150282

Citation:

Wang Lei, Xu Ke, Shi Ling-wei, Yang Shuang-bao. A New Range Migration Correction Algorithm and Its Simulation for SAR Altimeter[J]. Journal of Electronics & Information Technology, 2015, 37(11): 2713-2718. doi: 10.11999/JEIT150282

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A New Range Migration Correction Algorithm and Its Simulation for SAR Altimeter

doi: 10.11999/JEIT150282

Received Date: 2015-03-09
Rev Recd Date: 2015-06-29
Publish Date: 2015-11-19

Abstract

Abstract

The Range Migration Correction (RMC) is a key technique of synthetic aperture radar altimeter which is more precise than the conventional radar altimeter. Because of the satellite motion, the distance change between the satellite and the observed target will bring about some residual errors, but they are ignored in the existing RMC algorithms. In this paper, the influences of the vertical and horizontal velocities of the satellite are studied, then an RMC model is builded, and finally a new RMC algorithm which corrects not only the slant range error but also the residual errors is proposed. The simulation results show that this new algorithm can obtain more accurate outcomes.
- SAR altimeter,
- Range migration algorithm,
- Residual error

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References(21)

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