GPS应用程序设计，内含GPS卫星原理、方法及详细源代码

本文设计的FPGA模块需要对GPS、便携打印机和串口数据进行处理，将详细介绍如何设计FPGA和不同外设之间的数据传输。同时，在RTL编码中，编写使综合与布局布线效果更佳的代码。-In this paper, the design of FPGA modules need for GPS, portable printers, and serial data processing, will be details on how to design FPGA and data transfer between peripherals. At the same time, RTL coding, synthesis and preparation to make better placement and routing code.

API_0.83_for_BlueSoleil 希望对从事蓝牙变成的人会有所帮助-API_0.83_for_BlueSoleil wish to become engaged in Bluetooth would be helpful

GPS本开发工具是友利华（河南）高科技开发有限公司集多年开发、使用GPS OEM 板的经验 开发的一套软硬件。它具有多种GPS OEM 板的接口能力，使用直观、简便、安全、快捷。以 下就其软硬件的使用和其注意事项作以说明-GPS tool is the development of the Friends of Oliver"s (Henan) Limited sets of hi-tech development for many years to develop, the use of GPS OEM board the experience of a set of hardware and software development. It has a variety of GPS OEM board interface capabilities, the use of intuitive, simple, safe and efficient. Following on the use of its hardware and software and for its attention to matters Note

一个GPS监控系统中，实现对电子地图加密的示例。解决了GPS系统中对电子地图的安全保密-A GPS monitoring system, the realization of electronic map encrypted examples. Solved the GPS system on the electronic map of the security and confidentiality

可以通过串口连接主机获取GPS数据，然后解析出定位结果。

此代码是仿真GPS L1 信号捕获。首先，它生成 CA 代码和相关的伪代码，然后乘以载波。然后，仿真信号的频谱被绘制。最后，频率偏移被加到了信号，本地通过与仿真信号的相关运算和使用已知的pn码来获得即时的起始代码和频率偏移量。

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.

增值业务的sngp协议。 -Value-added business sngp agreement.

NGN－3G核心部件SGSN的代码实现，适合初学者学习，有详细的说明-NGN-3G core component code SGSN realize is suitable for beginners to learn, have a detailed description of

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