导航电文 meaning in English
navigation message
Examples
- Gps receivers belong to the user equipment , mainly used to receive satellite signals and telegraphese , measure the distance from receiver to the satellites by the wireless signals , compute the position and speed of satellites by telegraphese , then compute the position and speed of user
Gps卫星接收机属于卫星导航定位系统中的用户设备,主要用于接收卫星信号和电文,由无线电信号测定用户至卫星的距离,或多普勒频移等观测量;根据导航电文,计算观测卫星的位置和速度,根据观测量和卫星的位置、速度,解算出用户的位置和速度。 - In this essay , i give the hardware and software design in detail of this integrated navigation instrument . firstly , i use two charpters to analyse the characters of the required data signals , including the primary principle of transmitting gps data signal and the standard of decoding it
文中给出了该组合导航仪软硬件的详细设计，首先分析了导航所需的各种数据信号的特性，分析了gps数据信号进行传输的基本原理和导航电文的解算方法，并给出了影响各种信号的状态因素。 - The new positioning system which employs three geostationary satellites emitting radio signals to users just like the gps satellites do , and allows the users receiver to solve position based on the received radio signal as well as the reading of electronic map , the drawbacks of double - star navigation system are overcome
三颗同步导航卫星像gps卫星那样向用户播发导航电文,用户接收机根据这些导航电文信息以及电子地图高程数据,像gps接收机那样解算用户位置,从而克服了双星定位的两大缺陷。 - It makes use of resource of the chip , realizes the development of every module , achieves distilling of telegraphese , builds up new frame , calculates the position and provides external interface . in the section of calculating the position , the author combines the two measures of carrier phase position and code position . finally , in the platform of matlab , the author completes the function simulation of main modules
概述了接收机的设计原理;详细描述了基于ti公司的tms320c6713dsp芯片的系统程序设计中各模块的实现,利用该芯片的资源,实现各模块的调度,完成对导航电文的提取,重新组帧,定位解算以及对外接口;在解算部分,把载波相位定位与码测距定位相结合,利用载波相位对伪距的平滑来提高定位精度;在matlab平台下进行了各模块的功能仿真测试,以仿真结果的图表来分析说明了载波相位平滑伪距的两种算法能使定位精度有一定的提高。 - According to the present status of studying the solar flare using gps , a new algorithm of processing gps data studying the solar flare is brought forward : after the instrumental bias has been determined , with the data of dual - frequency gps code and phase and navigation message , the vtec at the satellite ' s epp can be worked out
根据现在研究太阳耀斑的实际情况，提出了利用gps研究太阳耀斑的数据处理方法：利用双频观测值确定出仪器偏差后，再利用码和相位观测值，结合导航电文就可以求出电离层交叉点的沿天顶方向上的电子总量vtec值。