测量站数量对多站测向交叉定位精度的影响  

The Influence of the Number of Measuring Participants on the Location Error in Multi-station Bearing-crossing Location

作　　者：卢发兴[1] 高波[2] 邢昌风[1] 王国根[1] 

机构地区：[1]海军工程大学电子工程学院,武汉430033 [2]海军航空工程学院,山东烟台264001

出　　处：《火力与指挥控制》2011年第2期69-72,共4页Fire Control & Command Control

基　　金：国防"十一五"装备预研项目(51306040110);海军"十一五"装备预研项目(4010804040101);海军工程大学校内基金资助项目(20080405040005)

摘　　要：多站测向交叉定位是海上编队作战中最常用的目标指示方法之一。该方法的定位精度受测向误差和目标距离远近的影响较大,定位精度相对较低。提高定位精度的措施包括合理配置观测站数量和阵位,以及提高测向精度等。虽然研究中一般认为增加测量站有助于提高精度,但缺少站数对定位精度影响的模型。首先以非线性最小二乘估计下的多站测向交叉定位为例,给出定位算法及定位误差的模型;在此基础上,解析分析了测量站数量及距离对定位误差的影响,并进行了仿真。结果表明,在多站测向交叉定位中,测量站数量增加一定程度上将提高定位精度,但站数过多对提高精度作用不大,且造成定位复杂性增加;此外加大站间距也将减小定位误差。The multi-station bearing-crossing location is a main method for target designation for engagement of the fleet. It can work in concealment, but the resulted location error is also remarkable, which is determined not only by the measuring accuracy and the distance between the target and the stations, but also by the arrangement of the measuring participants. Though it is believed that increasing the number of the participants is helpful to improve the location accuracy, the influence model has not yet been proposed. In the paper, the nonlinear least square estimator is developed for multi-station bearingcrossing location, and its location error is analyzed. Based on it, the influence of the number of the measuring participants on the location accuracy is analytically calculated and simulated. The simulation results show that the location accuracy will increase with the increase of the number of the measuring participants, but the improvement will be sharply slowed down if too many stations involved, which also boost the complexity of location ; besides, the larger the distances between the participants are, the higher the location accuracy is.

关 键 词：测向交叉定位 最小二乘估计 定位误差 测量站数量 

分 类 号：TN951[电子电信—信号与信息处理]