A Spaceborne Dual Frequency Radar Altimeter System Design with its Performance Estimation

摘要

A spaceborne dual frequency radar altimeter system is designed for 800km height satellite orbit based on our past works and its height measurement precision is analyzed. By the dual frequency mode design (Ku band and C band), the altimeter can correct transmissio path delay caused by the total electron content variation in ionospheere, and it can be used to measure the large scale sea surface topographic feature with +-1.6cm height precision.