【摘要】 介绍了广域实时精密定位的基本原理和关键技术,并用实例证实了该系统能为双频用户提供精度优于10cm的平面坐标以及精度为1～2dm的高程,具有广阔的应用前景。论文还介绍了利用三频组合观测值来消除电离层延迟的方法,指出了这些方法的优缺点。更多还原

【Abstract】 The basic principle and key techniques in wide-area real time precise positioning system are introduced.And it is demonstrated with examples that an accuracy of 10cm in horizontal and 1-2dm in height can be obtained for the dual frequency users using the system.Also,the ionospheric correction methods with tri-frequency combination observation are described,as well as their advantages and shortcomings.更多还原