雷达-光电经纬仪联合定位模型及误差分析

在现代靶场测量系统中,将不同测量设备测量数据进行融合处理以提高系统的综合测量水平和设备的使用效率。利用部署在光电经纬仪附近的雷达,建立雷达-光电经纬仪联合定位模型,将测角信息和部署在其附近雷达的测距信息进行数据融合,可以得到目标相对于经纬仪的距离,从而确定目标的空间三维位置;分析了定位模型的主要误差来源和典型情况下的误差情况。其结果表明,在典型情况下雷达经纬仪联合定位模型距离定位误差与雷达测距误差基本相当。

Model for joint positioning of radar and electro-optical theodolite and its errors analysis

Referring to the target measurement systems in a modern shooting range, data fusion for different measuring equipment is very important and effective to improve the comprehensive precision of target measurement and the utilization ratio of various instrumentations. Based on a joint positioning model with radar and electro-optical theodolite, data fusion will be implemented by using the angle-measurement information obtained from theodolite and the range finding information from adjacent radars. As a result, the relative range between the target and the theodolite can be obtained and the spatial 3-D position of the target can also be determined. The paper describes the main error sources of the positioning model as well as the errors in typical cases. The analysis results show that in typical cases the range positioning error of the radar-theodolite joint positioning model is basically equivalent to radar range finding error.