在给定星历条件下计算卫星坐标，当有更多星历数据时候程序需要更改...

H31GPSTest2007-06-09.rar自动查找GPS端口的一个测试程序-H31GPSTest2007-06-09.rar automatic search of a GPS port testing procedures

GPS receive program,use AT89c51,displayed by 1602lcd.

对于WAAS系统的最终衡量标准是可用性强调了导航系统的运行经济性。它被计算为时间的WAAS系统提供位置固定的准确性，完整性和连续性的指定级别的分数。最低运行性能标准（MOPS）的WAAS指定必须在99.99999％的概率得到满足的差分改正导航解决方案的垂直防护等级（VPL）和水平防护等级（HPL）的计算。因此，真正的误差不能超过保护水平不止一次107秒钟。如果计算出的保护水平超过了相应的警报上限则报警被丢弃的操作无法继续进行。如果操作已经开始这个条件是连续性违反和复飞，必须进行。否则系统被声明为划时代不可用。

用matlab编辑的关于超宽带通信的BPSK调制的误码率分析,系统仿真时加入高斯白噪声,仿真结果给出了时域和频域图-BER analysis of the ultra wide bank BPSK communication channel with AWGN, time and spectrum figures are given in the end.

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.

SIMCOM SIM508Z RoHS Technical Data Sheet

中国联通 gip协议代码,应该会有用的，大家看看，我也没怎么仔细看-China Unicom gip agreement code should be used, we look at, I have not had a close look at how

一个GPS网WGS_84平差坐标向地方独立坐标的转换文档，比较全-A GPS network adjustment WGS_84 independent coordinates to local coordinates of the conversion document, compare the whole

用Matlab将Radio Frequency（RF）收发模块进行模型化。非常少见用Matlab对RF的建模-Matlab will use Radio Frequency (RF) transceiver module model. Very rare with Matlab modeling of RF

该程序是信号的多普勒现象，通过设置不同的参数，可得到不同的现象，具有一定的参考价值。-that the procedure was the Doppler signal, by setting different parameters, will be different, has some reference value.