基于STK的运载火箭测控链路电平仿真分析

Simulation Analysis of Tracking and Control Link Level in Launch Vehicle Based on STK

摘要:

在运载火箭的海上测控任务中,目标特性分析是最重要的工作之一。通常采用人工预先识别任务弧段中火箭遥测天线方向图的增益变化,并手动计算地面测控站接收信号AGC情况。针对上述方法效率低、过程繁琐、人为错误无法避免等问题,讨论了基于STK软件进行运载火箭测控链路电平仿真分析的方法,重点分析如何利用火箭实测天线方向图生成STK格式的天线电磁场辐射图。通过某次运载火箭飞行任务的仿真分析和实际跟踪结果比较,证明该仿真分析方法能够满足任务需求,仿真结果可以作为运载火箭目标特性分析的参考。

Abstract:

The target feature analysis is essential for sea based launch vehicle tracking and control. The analysis method is performed with recognizing gain changes of telemetry antenna pattern in task usually and computing the automatic gain control(AGC)signal received by TT C station manually. Aiming at the problems of low efficiency, complicated process and human errors, the method is discussed for a simulation analysis of tracking and control link level in launch vehicle based on STK, which elaborated emphatically for generating the electromagnetic field radiation pattern accord with STK format by launch vehicle antenna pattern. Compare the results of simulation and actual tracking by the launch vehicle in a flying, it indicates that the proposed method can satisfy the requirement in task and the result of simulation can be the reference by target feature analysis on launch vehicle.