无线电导航定位

GPS（Globalpositioningsystem）系统是目前世界上应用最广泛的星基无线电导航定位系统。

GPS ( global positioning system ) is the most advanced and most widely-used satellite-based radio navigational and positioning system .

拖曳天线用于无线电导航定位试验研究

Study on radio navigation and position experiment with trailing wire antenna

GPS是随着现代科学的发展而兴起的以卫星为基础的无线电导航、定位技术、能为为各类用户提供精密的三维坐标、速度和时间。

With the development of modern science , GPS which is rising by radio navigation and positioning technology in satellite-based can provide sophisticated three dimensional coordinate speed and time for kinds of users .

陆基无线电导航系统准确定位建立在各个发射基站发射信号之间完全同步的情况下，接收机方可完全消除发射端与各接收机端之间的钟差。

Accurate positioning of land-based radio navigation system is attributed to the complete synchronization of signals from different transmitting stations under which condition the receiver could eliminate clock error between transmitters and receivers .

本文主要对NAVTEX无线电导航系统中与定位精度有关的部分进行了研究，并利用通信仿真软件建立导航信号的跟踪捕获仿真模型，研究了多径干扰下的码跟踪误差和载波跟踪误差。

It 's investigated that the problem related with positioning precision of NAVTEX wireless navigation system , the acquisition and tracking of spreading signal are modeled and realized with simulation tools , the effects of multi-path signals are investigated in great detail .

大气折射效应会引起无线电传播路径发生弯曲，使得无线电导航定位系统中测量到的距离与真实值有一定的误差。

Radio wave bending is caused by atmospheric refraction , which leads to the distance measured by radio navigation system different from the truth .