经PPM调制的超宽带信号经高斯白噪声信道的系统仿真,给出了时域和频域图...

提出了利用精密单点定位(precise point positioning,PPP)技术进行海啸预警的方法,并利用TriP软件对实测浮标数据进行了处理,将得出的海面高数据和海啸波模型叠加进行了模拟分析。仿真结果表明,利用精密单点定位技术进行海啸预警,能够监测判断海啸的发生,并获得海啸波到达海岸的波高和时间,提供一定的预警信息。 -Made use of Precise Point Positioning (precise point positioning, PPP) technology for tsunami early warning methods and the use of Trip software buoy measured data were processed, will come to the surface of high tsunami wave model data and conducted a simulation analysis of superposition. The simulation results show that the use of Precise Point Positioning for the tsunami early warning, to monitor to determine the occurrence of the tsunami, and tsunami wave reached the coast, wave height and time, provide some early warning information.

GPS服务器 通过SOCKET来传输数据，从GPS设备提取数据进行传输

GPS单点定位程序，可实现卫星坐标计算，地面点坐标计算，精度指标计算和输出到Excel。

大名顶顶的gpsd，很多开源软件都用的，与gps硬件进行通讯-顶顶name of gpsd, a lot of open source software are used with the gps hardware communications

--收集的-----vc++mapx资料------ 给大家--- collected----------- vc MapX information for everyone to s

从Rinex格式的GPS观测文件（即O文件）中提取所需卫星的VC程序-Observations from the GPS satellites needed to document the procedures to extract

一个国外关于GPS星座的程序，constell直接运行，希望对大家有用-abroad on a constellation of GPS procedures constell direct running, we hope to useful

全面介绍MAPX开发的有关内容，VC下鹰眼图的实现VC下鹰眼图实现的 思路与VB是一样的，只不过VC的可视化程序没有VB高，VC更多的是利用代码来实现一定的功能。 -comprehensive presentation Connection development of the content, VC Hawkeye map to achieve VC Hawkeye map and the idea is the same as VB, VC only visualization process is not high VB, VC is using more code to achieve certain functions.

目前GPS（全球定位系统）定位应用市场日趋成熟，正在进入应用的高速发展时期。本文以一款EverMore公司的GM-X205GPS接受模块为例，介绍了其数据格式，以及应用PIC16F874单片机RS232串口进行数据接收的程序-current GPS (Global Positioning System) location-based applications market becomes more mature, Applications are entering a period of rapid development. A EverMore paper to the GM-X205GPS accept modules for example, introduced a data format, and the application of PIC16F874 RS232 serial port for data receiving program

gps基线解算基础函数，包括伪距定位，差分定位，坐标转换等