一种高精度动态测控信号模拟器

A High Precision Simulator for Dynamic TT&C Signals

根据测控系统对动态模拟器的要求,即模拟动态范围宽、模拟精度高、逼真度高,设计了采用两级数字存储器对信号进行粗细时延组合控制的转发式模拟器。根据运动方程高逼真度地模拟飞行目标的动态特性,该模拟器可以实现距离模拟范围千万公里时,精度优于1 cm;速度模拟范围每秒几十公里时,精度优于1 mm/s的高精度动态模拟。

According to the requirements of telemetry,tracking and command( TT&C) system dynamic simulator such as wide dynamic range,high accuracy and fidelity,a forwarding simulator is adopted which uses a two-level digital memory to realize rough and accurate time delay control of signals. On the basis of motion equations for flying target,the simulator can simulate the dynamic characters of flying target accurately. The precision is under 1 cm and 1 mm/s when the simulated distance is about tens of millions kilometers and simulated velocity is about dozens kilometers per second,respectively.