基于有源定标器的HY-2高度计后向散射系数在轨定标方法研究
发布时间：2019-01-16 00:52
【摘要】：为保证HY-2卫星高度计输出数据的准确性和稳定性,提高其对海面风速的测量精度,提出了一种基于脉冲重建型有源定标器对HY-2高度计后向散射系数进行在轨定标的方法,开展了在轨定标实验,得到了定标因子。将定标因子用于校正高度计测量的海面后向散射系数,并且与Jason2所测得的后向散射系数进行对比,取得了一致的结果,验证了方法的可行性和准确性。
[Abstract]:In order to ensure the accuracy and stability of the HY-2 satellite altimeter output data and improve the accuracy of the sea surface wind speed measurement, An on-orbit calibration method for backscattering coefficient of HY-2 altimeter based on pulse reconstruction active scaler is proposed. The calibration experiment is carried out and the calibration factor is obtained. The calibration factor is used to calibrate the sea surface backscattering coefficient measured by the altimeter, and compared with the backscattering coefficient measured by Jason2, the results are consistent, and the feasibility and accuracy of the method are verified.
【作者单位】： 中国科学院国家空间科学中心微波遥感技术重点实验室;中国科学院大学;
【分类号】：P715.6
[Abstract]:In order to ensure the accuracy and stability of the HY-2 satellite altimeter output data and improve the accuracy of the sea surface wind speed measurement, An on-orbit calibration method for backscattering coefficient of HY-2 altimeter based on pulse reconstruction active scaler is proposed. The calibration experiment is carried out and the calibration factor is obtained. The calibration factor is used to calibrate the sea surface backscattering coefficient measured by the altimeter, and compared with the backscattering coefficient measured by Jason2, the results are consistent, and the feasibility and accuracy of the method are verified.
【作者单位】： 中国科学院国家空间科学中心微波遥感技术重点实验室;中国科学院大学;
【分类号】：P715.6
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