一种基于传感器的测量目标运动参数方法研究  

Study of a method for measuring target moving parameters based on sensor

作　　者：常景娜 高慧斌[1] 乔冠宇[1,2] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院大学,北京100039

出　　处：《传感器与微系统》2015年第11期19-22,共4页Transducer and Microsystem Technologies

摘　　要：光电经纬仪跟踪过程中,为高精度地跟踪目标,必须提高目标运动参数的测量精度。结合工程中遇到的实际问题,提出了采用单站、双站交会综合测量目标空间坐标的方法,利用三次样条插值方法拟合目标的运动轨迹,确定目标在各时间点的方位坐标和运动参数。经实验验证:在激光测距仪测距精度为0.2 m、编码器测角精度为20″时,测速精度可以提高0.351 m/s。与传统方法相比,该方法具有数据利用率高、计算方法简单、实时性好等优点。In order to track target with high precision,measurement precision of target moving parameters should be enhanced during tracking process of photoelectric theodolite. Combined with practical issues in engineering,propose a comprehensive method of intersection measurement by single-station and two-station,employ cubic spline interpolation method to fit motion track of target,object position information and moving parameters at any time point are determined by using this method. The experimental results show that the precision of velocity detection reaches 0. 351 m / s while ranging precision is 0. 2 m of laser range finder and encoder of angle measurement precision is 20 ＇＇. The presented method is proved to have high data utilization ratio,simplified calculation and good real-time performance comparing to traditional approaches.

关 键 词：光电经纬仪 激光测距仪 三次样条插值 运动参数 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]