基于SIM868+STM32的定位代码

非常实用的工具，可以用Matlab来进行射频上船用的转换以及分析。（例如可以将S矩阵转化成Z矩阵，放大器稳定性分析……）-Very useful tool, you can use Matlab to carry out on the marine radio frequency conversion, as well as analysis. (Such as the S matrix can be transformed into Z matrix, amplifier stability analysis ... ...)

移动设备GIS开发包 是免费的可在ARM X68平台上开发-GIS Development Kit for mobile devices is free of charge in the ARM X68 platform

提供GPS参考站的数据结构，主要包含卫星星历结构，GPS卫星定位过程的一些模型参数，如电离层与对流层等，对初学GPS的人很有用。

Set of tools to perform transformations between projection, ellipsoidal and cartesian coordinates in either direction. -Set of tools to perform transformations be tween projection. ellipsoidal and cartesian coordinates in eith er direction.

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

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

采集gps位置工具，可以快速定位查询，带源码-Gathering gps location tool, with source code

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

北京市矢量地图

GPS测试及接收通信程序-Communication code for GPS testing and receiving