空间交会激光雷达信息测量技术

为了测量目标飞行器的位置及速度等信息,提出采用模拟插入脉冲计数法测距,最小二乘曲线拟合微分法测速,四象限(QD)光斑定位法测角。并在MATLAB/SIMULINK环境下,对采用该方法的脉冲激光雷达信息测量系统进行了计算机仿真。结果表明,距离测量精度高,误差小于0.01m,速度精度也高,误差小于0.02m/s。采用该测量技术的脉冲激光雷达是可靠的。

Technology of the rendezvous lidar measuring the object's position

In order to measure the object's position and velocity,the method of counting pulse with analog interpolation is used to measure the distance,and the method of differential coefficient of the fitting curve based on least-square curve fitting that takes the exponential function is used to measure velocity,and the method of orientating facula with quadrant detector is selected to measure the orientation angles in the pulsed lidar measuring system.Computer simulation is performed with the MATLAB/SIMULINK.As a result,the distance precision is less than 0.01m,the velocity error is smaller than 0.02m/s.It can be concluded that the information measuring technology of pulse lidar is reliable.