航天器工程2012，Vol.21Issue(5)：91-96,6.
USO—KBR测距系统建模与仿真
Modeling and Simulation for USO-KBR Ranging System
摘要
Abstract
The K band ranging (KBR) system is one of the most important instruments of the low-low satellite-satellite tracing (SST-LL) gravity measurement satellite which directly affects the Earth gravity field space resolution. The stability of ultra stable oscillator (USO) has a great influence on the whole performance of the KBR. Based on the dual one-way ranging principle and USO power law model, a system structure is presented for high precision KBR measurement sim- ulation. The basic principle, function composition and appropriate mathematical models used in the simulation are studied, and a simulation system is proposed to simulate KBR of GRACE with Matlab. The result shows that the root mean square error(RMSE) of dual one-way ranging is 9.81μm, which is the same as that of KBR in GRACE (10μm). The model can be considered as a simulation and analysis tool for KBR system design and a reference for the project application.关键词
重力测量卫星/低-低卫星跟踪卫星/K频段微波测距系统/超稳振荡器/仿真Key words
gravity measurement satellite/low-low satellite-satellite tracing/KBR system/USO/simulation分类
航空航天引用本文复制引用
辛宁,邱乐德,张立华,丁延卫,覃政..USO—KBR测距系统建模与仿真[J].航天器工程,2012,21(5):91-96,6.基金项目
国家重大科技专项工程 （）
