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在进行导弹飞行试验时,可用GPS系统取代雷达进行弹道测量。高质量的弹道轨迹测量使GPS系统在导弹惯性测量装置性能评估方面可发挥很大作用。根据美国空军在弹道导弹发射试验中采用这种系统的考核情况,介绍了GPS系统在惯性测量装置误差估计上的应用及试验中GPS的硬件配置。根据GPS提供的距离和距离增量数据,利用卡尔曼滤波近似法对惯性测量装置误差进行估计,并与雷达测量数据进行了比较。结果表明,利用GPS系统做出的估计更精确。
In conducting missile flight tests, GPS systems can be used instead of radars for ballistic measurements. High-quality ballistic trajectory measurement enables GPS systems to play a large role in the performance evaluation of missile inertial measurement devices. According to the assessment of this system by the U.S. Air Force in the ballistic missile launch test, the application of the GPS system to the error estimation of the inertial measurement device and the hardware configuration of the GPS in the experiment are introduced. According to the distance and distance increment data provided by GPS, the error of inertial measurement device was estimated by Kalman filter approximation and compared with the radar measurement data. The results show that the estimation made using the GPS system is more accurate.