基于最小二乘的无人机无线导航方法研究

摘要

The radio position (RP) navigation is the traditional mode for UAV navigation system whose error accumulates with time.For the navigation precision of traditional UAV radio position (RP) navigation system is low, the new kind of RP navigation method based on least square estimation is put forward and the model of RP navigation system is built. Taking the dead reckoning (DR) as the benchmark, the simulation model is established and the simulation calculation is made by Matlab/Simulink tool box. The simulation results show that the RP navigation system based on least square estimation can restrain nonlinear disturbance and this system has good navigation precision.%无线电导航是无人机传统导航模式,该模式的导航误差随时问积累;针对无线电导航系统由于非线性造成导航精度较低问题,提出了基于最小二乘估计的无线电导航方法;在研究非线性问题基础上构建了无线电导航系统模型;以航程推算为基准,进行了相应仿真计算分析;仿真分析表明基于最小二乘法的无线电导航系统能有效抑制非线性扰动,导航精度有较大提高.