基于GPS的脉冲激光主动式定位系统

GPS-based pulsed laser active positioning system

传统脉冲激光定位系统的激光发射呈现被动式,导致系统定位精度低与定位耗时长,因此设计了基于GPS的脉冲激光主动式定位系统。硬件部分由激光测距模块电路、视频采集模块电路、GPS模块电路、环境信息采集模块电路,通信接口电路组成。根据系统利用同轴望远镜对流动站目标进行照准的操作模式,主动发射脉冲激光,利用隔点差分法和平滑滤波方法相结合方式实现信号去噪,根据回波波形的峰值点获取精准的目标流动站坐标信息,实现脉冲激光主动式定位。仿真实验结果表明,所设计的脉冲激光主动式定位系统能够快速准确实现目标定位,具有可靠性与可行性。

The laser emission of traditional pulsed laser positioning system is passive,which results in low positioning accuracy and long positioning time.The hardware part is composed of laser ranging module circuit,video acquisition module circuit,GPS module circuit,environment information acquisition module circuit and communication interface circuit.According to the operation mode that the system using coaxial telescope to sight the target of mobile station,the pulsed laser is fired actively,the signal is de-noised by using the methods of difference between points and the smoothing filter.And the coordinate information of target mobile station is obtained according to the peak point of echo waveform,so as to realize the active positioning of pulsed laser.The simulation results show that the proposed active positioning system can realize target positioning quickly and accurately,and it is reliable and feasible.