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一、卫星导航的性能及其增强卫星导航的性能的主要参数有如下四个,即定位时的精度、完好性、可用性和连续服务性。定位精度——目前对平面导航来说,主要指水平定位误差(总系统误差的95％概率值)。GPS 的水平定位误差在100米以内,可以符合航路、终端导航和非精密进近的要求,但不能满足精密进近的要求。完好性——指卫星信号故障或引起误差的事件能及
First, the performance of satellite navigation and its main parameters to enhance the performance of satellite navigation are the following four, that is, positioning accuracy, integrity, availability and continuity of service. Positioning accuracy - currently for plane navigation, mainly refers to the horizontal positioning error (total system error of 95% probability value). GPS horizontal positioning error of 100 meters, can meet the route, terminal navigation and non-precision approach requirements, but can not meet the requirements of precision approach. Integrity - refers to the satellite signal failure or cause of error events