导弹飞行数据的相容性检验研究

A STUDY ON COMPATIBILITY CHECK MISSILE FLIGHT TEST DATA

本文针对导弹飞行试验的特点,采用导弹六自由度动力学方程建立了飞行数据相容性检验的数学模型。在有舵偏激励同时考虑偏差间相关性的条件下,应用广义Kalman滤波方法进行常值及比例因子偏差的估计。仿真及实际应用表明所建数学模型及估计方法正确有效,所得结果与由高速可重复模拟匹配技术结果极为接近。

An efficient method for flight test data analysis would be to determine first whether the data channels are all compatible, make whatever adjustment required, and then use the refined compatible data for aerodynamic parameter estimation. In this paper, by considering the characteristics of missle flight tests, a model for the compatibility check of measured missile response is presented. On the condition of designing input signal and considering the correlation among bias errors, by using extended Kalman filter, simulation and practical application indicate that the mathematical model being set up and the estimation algorithm are reasonable and valid. The obtained results are very close to those determined by high-speed repetitive operation analog matching, and the effectiveness of the results is proved once again.