CAJ | 학술논문

无模糊度模型的精密单点定位,通过历元间相位差分,消除初始相位模糊度来求取历元间位置差.本文基于抗差估计,讨论了历元间伪距、相位差分技术以及参数的估计方法.赋予伪距、相位观测值不同的初始权,然后采用抗差估计原理进行位置差参数估计.分析了不同采样率对位置差结果的影响,采用小波分析理论对位置差误差的特性进行了研究.探讨了采用历元间差分获得的位置差进行单点定位时存在的一些问题.
무모호도모형적정밀단점정위,통과역원간상위차분,소제초시상위모호도래구취역원간위치차.본문기우항차고계,토론료역원간위거、상위차분기술이급삼수적고계방법.부여위거、상위관측치불동적초시권,연후채용항차고계원리진행위치차삼수고계.분석료불동채양솔대위치차결과적영향,채용소파분석이론대위치차오차적특성진행료연구.탐토료채용역원간차분획득적위치차진행단점정위시존재적일사문제.
The ambiguity free model of precise pointing can eliminate the ambiguity parameter, because the method of Epoch-difference of phase is used. The estimation parameters of this model are the position difference. Based on the robust estimation, this paper discusses the analyses the effects of the sample interval on the results of position-difference. The characterization of position-difference error is studied using wavelet analysis. According to the characterization of errors, some key problems that happen using the method of Epoch-difference to position are also studied.