摘要
近年来,全球定位系统(GPS)技术不仅在测绘、地质、采矿、水电等一般领域,而且在公安、消防、旅游、搜救、探险等特殊领域也得到了广泛应用。基于这些特殊领域的实时性要求以及不同定位精度的需要,目前,GPS伪距差分定位技术己成为热门的研究方向。简述差分GPS定位原理以及RTCMSC-104数据格式及其电文编译的方法。提出利用普通的GPS-OEM板建立伪距差分GPS定位系统的设计方案。通过实地试验统计数据表明,经过差分后,这种基于GPS-OEM板的定位系统可以提供1～4 m的平面定位精度,而且这种简易差分系统具有设备简单,造价低及实用灵活等优点。
In recent years, the GPS technique has been widely applied in such usual fields as surveying, mapping, geology, mining and electricity, and in such special fields as police, fire protection, tour, and exploration. At present, the technology of pseudo-range differential GPS has become the hottest research fields. The differential GPS positioning is introduced, and RTCM SC-104 message content is also described. The design scheme of the pseudo-range differential GPS positioning system based on GPS-OEM is proposed. ;lest result shows that the positioning precision by this DGPS positioning system can reach to 1-4 m, the system has simple equipments, low cost and flexible performance.
出处
《现代电子技术》
2010年第17期4-6,共3页
Modern Electronics Technique
