Matlab codefor 软件定义 GPS 和伽利略接收器

GPS模块开发：vb、rs232串行通信控制-GPS Module Development: vb, rs232 serial communication control

gpsbabel for gps testing

gsm at gsm at gsm at gsm at-gsm at

使用vb.net编写的一个gps数据采集软件，可以通过串口采集gps数据。-A GPS data reader application which can obtain GPS data from serial port easily

对GPS模块的数据处理本质上还是串口通信程序设计，只是GPS模块的输出遵循固定的格式，通过字符串检索查找即可从模块发送的数据中找出需要的数据，常用的GPS模块大多采用NMEA-0183 协议。NMEA-0183 是美国国家海洋电子协会(National Marine Electronics Association)所指定的标准规格，这一标准制订所有航海电子仪器间的通讯标准，其中包含传输资料的格式以及传输资料的通讯协议。

GPS重要资料，包括很多源代码实习，是很有用的东西，希望对你们有用-GPS important information, including a lot of source code attachment, it is very useful things you want to be useful

WGS84BJ54两种空间直角坐标系的转换,由空间直角坐标到大地坐标的转换.-WGS84BJ54 two space rectangular coordinate system conversion, from the Cartesian coordinates of the space geodetic coordinates of the conversion.

GPS应用程序设计，内含GPS卫星原理、方法及详细源代码-GPS application design, including GPS satellite theory, method and detailed source code

The idea behind differential GPS is to remove as much errors as possible from the range measurements by establishing these errors at a reference site. In its most simple setup, a GPS receiver is located at a well surveyed position and its (pseudo) range measurements are compared with the actual calculated range from this receiver to the SV s. The differences between measured ranges and calculated ranges at the reference receiver are applied as corrections to the ranges measured by other receiver(s) close by.

用vc写的测试gps信号跟踪和俘获程序正确性和速度的程序-with vc written test gps signal capture and tracking procedures accuracy and speed the process