高低卫-卫跟踪模式主要技术指标的模拟分析与验证

Simulation Analysis and Verification for Major Indexes of High-Low Satellite-to-Satellite Tracking Mission

基于重力场信号的频谱特性建立了SST-hl加速度计和星载GPS等有效载荷的解析误差分析模型。以CHAMP卫星的相关技术指标为例,对卫星高度、加速度计精度和GPS定轨精度等技术指标与恢复重力场的性能作了模拟分析。将模拟分析结果与EGM96和EIGEN-CHAMP03S模型进行了比较,验证了解析模拟分析模型的有效性。

The error analysis models of onboard accelerometer and GPS receiver in recovering the earth＇s gravity field for SST-hl are established based on analytical theory. The performance of the altitude of the orbit, the indexes of accelerometer and GPS positioning precision in recovering the earth＇s gravity field are analyzed. Compared to the cumulative geoid errors derived from EGM96 and EIGEN-CHAMP03S models, the simulated results validate the effectiveness of the analytical simulation methods.