火箭发动机涡轮泵转速遥测数据实时处理方法

Real time processing method of telemetry data of rocket engine turbo pump

火箭飞行试验过程中,一般通过连续处理测量设备输出的脉冲周期计算发动机涡轮泵转速。受测控站接力跟踪及接收条件限制,遥测数据存在不连续、短时中断等现象,极易造成数据处理错误。通过研究脉冲参数在传输时的状态及状态转移,并对实时跟踪时出现的数据中断、异常值处理等情况进行分析,提出一种基于有穷自动机理论的处理模型,有效解决了测量数据的连续判断问题。

In the process of rocket flight test,the engine turbo pump speed is generally calculated by continuously processing the pulse period output by the measuring equipment.Restricted by relay tracking and receiving conditions,telemetry data are discontinuous,and always encounter short-time interruption and other phenomena,which can easily cause data processing errors.By studying the state and state transmission,and analyzing the data interruption and abnormal disposal during real-time tracking,a processing model based on finite automaton theory is proposed,which effectively solves the continuous judgment of measurement data.