CAJ | 학술논문

伪距是卫星导航系统的基本观测量,伪距的测量精度直接决定了系统的导航定位精度.从伪距测量的基本概念人手,给出了伪距、钟差、真距(传播时间、设备时延、观测时刻等基本物理量的定义及其相互间的关系,探讨了设备时延测定与伪距测量精度评估的方法与技术状态设置等问题,并给出了几点结论与建议.
위거시위성도항계통적기본관측량,위거적측량정도직접결정료계통적도항정위정도.종위거측량적기본개념인수,급출료위거、종차、진거(전파시간、설비시연、관측시각등기본물리량적정의급기상호간적관계,탐토료설비시연측정여위거측량정도평고적방법여기술상태설치등문제,병급출료궤점결론여건의.
Pseudo-range is a significant observable in satellite navigation systems. It is usually related to clock deviation,equipment time-delay and many other basic conceptions. Compared with the existing comprehensions, the specific conceptions and definitions are given of pseudo-range, clock deviation, real range (propagation time), and equipment time-delay, etc. Their rela-tionships are also deduced. At last, the way how to measure and evaluate equipment time-delay, and how to estimate the precision of pseudo-range is discussed in details. Some conclusions and suggestions are also given.