规范的现代sim508z（EN）_sim508z_spec

SIM868+STM32的定位代码,GPS,GPRS,并实现定位数据上传到OneNet平台，实现轨迹回放功能。

利用gps计算太阳日出日落时间，测试过很准确-suncalc

gps接收端源码以及1个test列子，提供简单的经纬度，速度，时间等GPS数据信息-gps receiver as well as a test source Liezi, providing a simple latitude and longitude, speed, time GPS data

guGPS提供一个自由而升级为基于位置的服务移动客户端，它就像一个RSS阅读器基于GPS localization-guGPS provide a free and upgradable mobile client for Location Based Services, it is like a RSS-reader based on gps localization.

运行程序前请先把"地图"文件夹中的地图集和图层拷到mapX4.0的maps文件夹中 刚开始的登录界面里 用户名和密码都为空,直接点击 "确认" 即可-post before running the program the "map" folder and the Atlas layer of metadata mapX4.0 maps folder at the beginning Lane user interface login names and passwords are empty, just click the "confirmation" can be

GPS的matlab程序，用于对产生的ca码进行移位，用在锁相环跟踪中对ca码调增-GPS-matlab procedures used to produce displacement of ca code, used in phase-locked loop tracking of the code increases ca

open source for car navigation in linux

GPS系统下RAIM算法可用性及结果分析，可用于RAIM算法的初学者或RAIM研究时的参考资料

这个程序能很智能地计算贴片天线的各个参数，只要给出其中的任意参数就能计算出其他-This process can be very smart to calculate the various parameters of patch antenna, as long as give them any other parameters can be calculated

gsm at gsm at gsm at gsm at-gsm at