电光与控制, 2012, 19 (6): 21, 网络出版: 2012-06-06
双机协同定位误差分析的研究
Error Analysis in DualAircraft Cooperative Locating
交叉定位 双机协同 模糊区 定位精度 误差分析 cross location dualaircraft cooperation location ambiguity region locational accuracy error analyzing
摘要
测向交叉定位技术是协同定位常用方法,针对双机协同测向交叉定位算法及其定位精度进行理论研究和仿真分析。首先给出了交叉定位造成的模糊区的计算方法,并进行仿真;而后重点对测向定位精度进行分析,给出定位算法和误差计算公式,并针对不同载机间距和间距误差、测角误差下的目标GDOP的分布进行了仿真分析。仿真结果表明,定位误差随着间距误差、测角误差的增大而增大,随着双机间距的增大先减小而后增大。
Abstract
Locating based on angles of arrival measurement is the fundamental method in cooperative locating.The algorithm and accuracy of cross locating were analyzed. Firstlya method for calculating the locational ambiguity region was givenand simulation was made. Thenthe accuracy of cross locating was analyzedthe locating algorithm and error calculating formulas were given.Simulations were made for distribution of target GDOP with different distance between two aircraftsdifferent aircrafts interval error and bearing error.Simulation results show that the locating error increases with the incraese of aircrafts interval error and bearing errorbut as the distance between two aircrafts increaseit will tend to decrease firstly and then to increase.
朱剑辉, 方洋旺, 张平, 李望西. 双机协同定位误差分析的研究[J]. 电光与控制, 2012, 19(6): 21. ZHU Jianhui, FANG Yangwang, ZHANG Ping, LI Wangxi. Error Analysis in DualAircraft Cooperative Locating[J]. Electronics Optics & Control, 2012, 19(6): 21.