卫星高度计直接绝对定标方法及其最新应用

Direct absolute calibration methods of satellite altimeter and its newest application

单颗卫星高度计的绝对定标是卫星测高任务实施的基础与前提,论文对基于直接比较的卫星高度计绝对定标方法进行了分析与比较.首先介绍了绝对定标方法的基本原理;根据参考海面高的测量方式将直接绝对定标方法分为3类,对其典型示例进行了分析,总结了各自实现的过程和原理;介绍了Corsica岛定标场使用GPS船筏系统进行定标这一直接定标方法的最新应用;归纳比较了不同方法的优缺点.最后,对我国定标场建设方法的选择提出了一些建议.

Absolute calibration of single satellite altimeter is the foundation and precondition of satellite altimetry mission. The approaches of absolute calibration based on direct comparison is analyzed and compared in this paper. The principle of absolute calibration is described in the first place,and then direct methods are classified into 3 types. Providing the process and principle of each method,typical instances of above methods are analyzed. The newest application of direct approach in Corsica calibration site which utilizes a GPS-zodiac system is introduced. Both advantages and shortages of each method is concluded and compared with each other. Last,suggestion of choosing calibration method is proposed for constructing our own calibration site.