导航仪

• The main product lines include : pmp portable personal mobile digital terminals , mp3s , mp4s , gps navigators , mobile digital tvs , mobile telecom terminals , and other digital products
  主要产品包括pmp便携式个人移动数码终端、 mp3 、 mp4 、 gps导航仪、移动数字电视、移动通讯终端等。
• The design project of the gps receiver and the design method of hardware and software are presented in detail , and the consists of gps system and the composition and the operating principle of the gps receiver are discussed in the thesis
  最终使定位误差小于10米，大部分数据小于5米。本产品可通过导航仪的rs - 232口与计算机串口进行串行通讯，经串口向计算机输入相关位置坐标。
• Main cpu of instrument adopt digital signal process unit ( arm core ) . the hardware design adopt distributing design which separate receiving and processing gps signal from the main system to use professional gps signal from the main system to use professional dsp to fulfill
  组合导航仪的主处理器采用高精简指令集( arm内核)的数字信号处理器件，硬件部分采用分布式设计，将gps信号的接收及处理独立出来，采用专用dsp进行。
• 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 main investment is in four different categories : ( 1 ) digital electronic products including pmp portable personal mobile digital terminals , gps navigators , mobile digital tvs , and mobile telecom terminals ; ( 2 ) photo electronic products including led semiconductor illuminating products , other photo electronic components , and products used in the application of solar energy ; ( 3 ) new materials such as de - sulfurization agents and environmental protection products ; and ( 4 ) telecom value - added services products
  主要投资领域包括： pmp便携式个人移动数码终端、 gps卫星导航仪、移动数字电视、移动通讯终端等数码产品；光通讯器件、 led半导体照明、太阳能应用等光电产品；固硫剂新材料等环保产品；以及电信增值业务产品等。
• This dissertation introduces a kind of car navigation system which use inertial navigation equipments and gps navigation satellite to realize the real time orientation . this instrument for navigation can measure informations of vehicle instantaneously , such as altitude , longitude , latitude and display these information on tft lcd
  本文介绍了一种利用车载惯性导航设备和gps导航卫星进行车辆实时定位的导航系统，该导航仪用于实时测量车辆的经纬度、高度等数据信息，并显示在外挂的tft液晶屏上。
• The details are as followings : the most usual problems related to navigation data fusion are studied ( the local navigation sensors export directly navigation parameters and their accuracies without feedbacks and cross data communications ) ; a novel conservative optimal fusion method of non - feedback multi - source correlated estimators is presented , and this method is extended to the case of more than two data sources ; some new theorems are supplied or proved so that our methods are naturally connected to the achievements up to present , and the integrated theory basis of non - feedback multi - source correlated estimators fusion is founded
  具体内容如下：研究了最一般的导航数据融合问题(局部导航仪直接输出导航参数及精度，且无反馈、无局部导航仪之间的交叉数据通讯) ；提出了一种新的无反馈多源相关估计向量的保守最优融合算法，并将该算法由两个数据源推广到了多个数据源；补充证明了一系列定理，从而将本文方法和前人研究成果有机地融为一体，建立了完整的无反馈多源相关估计向量融合的理论体系。
• The system can operate under all weather conditions , 24 hours a day , anywhere on earth , and can provide land , marine and airborne user with continuous , highly accurate , three - dimensional position , velocity , time data etc . now gps receivers , as a type of advanced equipment on navigation and positioning , have been used in many fields in almost every corner of the world
  第一个产品，陆军定位导航仪，选取motorola公司最新型号? ? m12oncoregpsoem板，作为原始信号接收模块，通过串行通信，经cpu实时分析、处理，提取出相关数据，产生具体位置参数，并通过一定算法，输出并在lcd上显示导航信息。