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目前发射车的定位定向普遍采用GPS、惯导及寻北仪等测量方法或后方交汇解算方法。测量法易受干扰、精度低而且寻北时间长;而解算法没有研究经纬仪存在姿态倾角时测量点三维坐标及载体姿态角的求解问题。本文提出了一种新的导弹发射车快速精确定位定向的方法:首先利用捷联安装在车体上的光电探测器,分别探测地面上三个坐标位置已知的靶标,得到三组方位角和俯仰角,并结合车载导航设备给出的发射车概略坐标、姿态角信息解算出发射车更精确的坐标、姿态角。通过实验研究论证,表明此方法具有速度快、精度高、自动化及智能化程度高的特点,能够有效缩短发射车准备时间、提高导弹发射的反应速度。
At present, launch vehicles generally adopt the GPS, inertial navigation, and north-finding or other measuring methods or the rear intersection and settlement method. The measurement method is susceptible to interference with low accuracy and long search time; however, the solution algorithm does not study the problem of solving the three-dimensional coordinates of the measurement point and the attitude angle of the carrier when the attitude of the theodolite exists. In this paper, a new method of fast and accurate positioning and launching of a missile launch vehicle is proposed. First, a photodetector strap-mounted on a vehicle body is used to detect three known target points on the ground and obtain three sets of azimuths Pitch angle, and combined with vehicle navigation equipment given launcher approximate coordinates, attitude angle information to solve the launch vehicle more accurate coordinates, attitude angle. The experimental research shows that this method has the characteristics of high speed, high precision, high degree of automation and intelligence, which can effectively shorten the launch vehicle preparation time and improve the missile launch response speed.