一种加窗速度平滑伪距的定位算法

A positioning method based on windowed velocity smoothing pseudorange

海面传感器网络的跟踪定位受到海浪以及海杂波的影响,难以满足协同观测、协同通信以及协同环境遥感等任务的精度需求,针对这一问题文中提出了加窗径向速度平滑伪距的定位方法(WVSP),并利用MonteCarlo仿真技术分析了该算法应对海杂波和链路测距粗差的定位精度。仿真处理的结果表明:与常用的直接伪距定位法、速度平滑伪距定位法相比较,WVSP能够有效地削弱测距链路中粗差的影响,降低了海杂波的干扰,使定位精度收敛。

Wireless sensor network （WSN） of sea surface is affected by sea surf, sea clutter, etc. Its＇ positioning precision doesn＇ t satisfy the requirements of cooperative exploring, cooperative communication, and cooperative remote sensing. To resolve above problems, this paper proposes a positioning method based on windowed velocity smoothing pseduorange （WVSP）. The results of Monte Carlo simulation show that compared with conventional direct pseudorange positioning algorithm （DPA） and velocity smoothing pseduorange technology （VSP） , the proposed WVSP method can effectively mitigate the influence of gross error in ranging link and the interference of sea clutter by the window smoothing technology, and its positioning precision converges to a stable value.