测绘与空间地理信息
測繪與空間地理信息
측회여공간지리신식
Geomatics & Spatial Information Technology
2015年
10期
158-160,164
,共4页
三频%载波相位%无几何相位组合%周跳探测与修复%伪距载波组合
三頻%載波相位%無幾何相位組閤%週跳探測與脩複%偽距載波組閤
삼빈%재파상위%무궤하상위조합%주도탐측여수복%위거재파조합
triple-frequency%carrier-phase%geometry-free phase combination%cycle-slip detection and correction%pseudo-range minus phase linear combination
随着GPS现代化的实施和L5频率的开设， GPS进入了三频时代。相对于双频观测数据三频观测值线性组合可以形成更多长波长、弱电离层、低噪声的组合。本文分析了GPS三频无几何相位组合的特性，利用两个GPS三频无几何相位组合和一个三频伪距载波组合组成观测矩阵探测周跳，并采用搜索方法确保周跳修复的正确。最后利用模拟的L5观测数据进行验证，结果表明该算法可以有效地探测并修复周跳。
隨著GPS現代化的實施和L5頻率的開設， GPS進入瞭三頻時代。相對于雙頻觀測數據三頻觀測值線性組閤可以形成更多長波長、弱電離層、低譟聲的組閤。本文分析瞭GPS三頻無幾何相位組閤的特性，利用兩箇GPS三頻無幾何相位組閤和一箇三頻偽距載波組閤組成觀測矩陣探測週跳，併採用搜索方法確保週跳脩複的正確。最後利用模擬的L5觀測數據進行驗證，結果錶明該算法可以有效地探測併脩複週跳。
수착GPS현대화적실시화L5빈솔적개설， GPS진입료삼빈시대。상대우쌍빈관측수거삼빈관측치선성조합가이형성경다장파장、약전리층、저조성적조합。본문분석료GPS삼빈무궤하상위조합적특성，이용량개GPS삼빈무궤하상위조합화일개삼빈위거재파조합조성관측구진탐측주도，병채용수색방법학보주도수복적정학。최후이용모의적L5관측수거진행험증，결과표명해산법가이유효지탐측병수복주도。
With the implementation of GPS Modernization and L5 frequency broadcast, GPS into three frequency era.Compared with the dual-frequency observation data, triple -frequency observation linear combination can be formed more long wavelength, low noise, low abscission layer.This paper analyzes the features of GPS triple-frequency geometry-free phase combination firstly,then uses two triple-frequency geometry-free phase combinations and a pseudo-range minus phase linear combination to detect cycle slip and combines a searching method to ensure the correct repair cycle slip .Finally using the simulate L5observation data verifica -tion, the results show that the algorithm can effectively detect and repair the cycle slip.
