用干涉仪实测数据预报天线跟踪角度

Forecast Antenna Tracking Angle by Using Real Data of Interferometer

在导弹飞行试验中,及时、准确地判别天线跟踪状态,是雷达完成测量任务的关键。分析了干涉仪测量值的误差项,给出了实时误差修正方法,提出并论证了用干涉仪测量值预报天线跟踪角度的一种新思路。用修正后的理论测量值替代野值和补齐未测到的段落。预报的天线跟踪角度误差小于0.45°,为判断天线跟踪状态提供了可靠的依据。

It is very important of radar tracking and measuring that to distinguish the state of radar antenna tracking timely and correctly in missile flight test. This paper analyzes the errors in the measuring data of interferometer, introduces the idea that how to correct the real-time errors, and puts forward the method in forecasting antenna tracking angle by real data of interferometer. The method uses the modified theoretical value to replace misdata and to fill missing segment. The deviation error of forecasting antenna tracking angle is less than 0.45 degree, and it is the criterion of analysing the radar antenna tracking state.