▍1. UM220 Unicore Protocol Specification Ver.1.0
和芯星通um220指令协议,适合于单片机开发(Protocol Specification of UM220 Unicore GPS/BDS module)
和芯星通um220指令协议,适合于单片机开发(Protocol Specification of UM220 Unicore GPS/BDS module)
中国地图ArcGIS练习数据(国界线、省会城市、省级行政区、县城驻地、地级城市驻地、全国县级统计数据)(China map ArcGIS exercise data)
非常有名的定位专著:Mobile Entity Localization and Tracking in GPS-less Environnments(Mobile Entity Localization and Tracking in GPS-less Environnments)
firmware for multimidia gps nwd win ce 6.0 winka
说明: 微弱信号下GNSS接收机,测绘专业GPS方向很重要的一本书。(Under weak signal GNSS receiver, GPS surveying and mapping professional direction very important book.)
说明: GPS伪距动态单点定位的计算公式,分析单点定位误差与几何强度因子GDOP之间的关系,并研究了当观测卫星数仅为必要的4颗时定位精度的降低情况,画出了GDOP与平面定位精度之间的等值线关系图,并研究了GDOP与定位精度之间的相关性。(the kinematic positioning formula using GPS pesudorange is given. The relationshipbetween error of single point positioning and geometry dilution of positioning(GDOP) is analysed. The worse situation in which only 4 pesudoranges are used in positioning is introduced. The relation contour between plane error of positioning and GDOP is given. Also studied is the correlation between positioning accuracy and GDOP. )
This are files abouth gps simulation toolbox.
一篇关于GPS抗干扰的博士论文,很有价值(GPS anti-jamming on a doctoral thesis, of great value)