摘要
为了研究多个运动平台对固定辐射源的差分多普勒(FDOA)定位,根据FDOA定位原理在"XX系统仿真"平台下建立了平面三站FDOA定位系统仿真模型。首先介绍了定位系统的每个子模块的功能和相应的数学模型;然后对定位误差的Cramer-Rao界进行了公式推导;通过仿真实验考察配置方式、运动方向以及取样数等参数对FDOA定位精度的影响。仿真结果表明所建立的仿真模型是可行而有效的。
The locating of fixed emitter from multiple moving stations by using Frequency Differences of Arrival （FDOA） was studied. The models of 2D multi-station FDOA locating systems were established based on the working principle of FDOA. The function and the mathematic formula of each sub-module of the locating system were introduced. Then the Cramer-Rao bound was derived out. Several independent FDOA location systems can be constructed in the same picture. Simulated experiments were carried to study the influence of the following parameters on locating precision of FDOA： configuration of moving stations, moving direction and sampling number. The simulation results illustrated the feasibility and validity of the method.
出处
《电光与控制》
北大核心
2009年第3期13-16,共4页
Electronics Optics & Control
关键词
差分多普勒定位
系统仿真
无源定位
多运动平台
FDOA locating
system simulation
passive location
multiple moving stations
