摘要
针对不确定区域大小对系统性能的影响,以地面定点激光通信系统为背景,通过坐标转换矩阵得到初始指向角,对影响视轴指向角精度误差因素进行了分析,将卡尔曼滤波技术引入到视轴指向系统中,完成系统建模。实验结果表明:在视轴指向系统中加入卡尔曼滤波器后可有效平滑GPS输出的位置数据,并且滤波的预测功能可减小动态滞后的影响,从而提高视轴指向精度,降低不确定区域大小。
Aiming at the influence of the size of the uncertain area on the system performance, based on the ground fixed point laser communication system, the initial pointing angle is obtained by coordinate transformation matrix, and the error factors affecting the accuracy of the visual axis pointing angle are analyzed. The Kalman filter technique is introduced into the visual axis pointing system to complete the system modeling.The experimental results show that the position data of GPS can be smoothed effectively by adding Kalman filter to the visual axis pointing system, and the prediction function of the filter can reduce the influence of dynamic lag and improve the accuracy of the axis pointing. It can reduce the size of uncertain area.
作者
吴若溪
董岩
田成军
赵馨
WU Ruoxi;DONG Yan;TIAN Chengjun;ZHAO Xin(College of Electronic Information Engineering,Changchun University of Technology,Changchun 130022,China;Graduate School,Changchun University of Technology,Changchun 130022,China)
出处
《光通信技术》
北大核心
2018年第9期30-32,共3页
Optical Communication Technology
基金
吉林省重点科技研发项目(20180201002SF)资助
关键词
激光通信系统
视轴指向
不确定区域
卡尔曼滤波
laser communication system
line-of-sight pointing
field of uncertainty
Kalman filter
