高精度系统时钟下的相对定位算法研究

在TDMA消息分发机制的网络中,获取成员之间准确地相对位置关系十分重要。由于一般导航系统提供的经纬度误差较大,本文提出一种在高精度系统时钟下,通过伪距测量实现网内节点相对定位的算法。在此基础上,详细介绍了针对高动态用户的TOA测量与惯性导航系统（INS）相结合的组合导航算法,建立以导航控制器为坐标原点的相对导航坐标系,根据惯导误差理论设计卡尔曼滤波器,并进行仿真分析。结果显示,该算法对于网内节点的定位精度有明显提高。

Research of relative localization algorithm based on high-precision system clock

It's important to get relative localization exactly in network of TDMA message distribution mechanism.Because of obvious error of common navigation system,we described a algorithm of relative localization using pseudo-ranges measuring based on precise system clock.On the basis of the algorithm,a algorithm of navigation using TOA measuring and inertia navigation system is described.A system of coordinates was built,the origin of this system was navigation control.Kalman filter was designed according to theor...