新一代运载火箭基准方位偏差对瞄准精度的影响

Influence of Reference Azimuth Error on Aiming Accuracy of Chinese New Generation Launch Vehicle

新一代运载火箭采用近距离光学平瞄方法,将光电瞄准仪架设在与火箭距离较近的发射塔架上。由于发射塔架不稳固,导致光电瞄准仪引入的基准方位存在误差。针对此问题,采用光学矢量传递理论,推导基准方位误差对瞄准精度的影响公式。数学仿真结果表明,瞄准基准设施的建设应满足一定的稳固度要求。

A short-distance optical aiming method is used for Chinese new generation launch vehicle,which the photoelectric theodolite is located on the launch tower close to the vehicle.Because of the launch towers sloshing,there is error of the reference azimuth used by the theodolite.According to the method of optical vector,the effect model of the reference azimuth error to the aiming error is established.The results of numerical simulation demonstrate the aiming infrastructure should be satisfied a certain degree of stability.