测绘学报
測繪學報
측회학보
ACTA GEODAETICA ET CARTOGRAPHICA SINICA
2015年
7期
717-725
,共9页
黄令勇%翟国君%欧阳永忠%徐广袖%李凯锋%黄贤源%范龙
黃令勇%翟國君%歐暘永忠%徐廣袖%李凱鋒%黃賢源%範龍
황령용%적국군%구양영충%서엄수%리개봉%황현원%범룡
高电离层延迟%三频GNSS%周跳探测与修复%无几何无电离层组合%两次历元差分的电离层残差组合
高電離層延遲%三頻GNSS%週跳探測與脩複%無幾何無電離層組閤%兩次歷元差分的電離層殘差組閤
고전리층연지%삼빈GNSS%주도탐측여수복%무궤하무전리층조합%량차역원차분적전리층잔차조합
high ionospheric activity%triple-frequency GNSS%cycle-slip detection and repair%geometry-free and ionosphere-free combination%second-order,time-difference phase ionospheric residual combination
在分析三频无几何无电离层组合特性的基础上,构造了3个线性无关的三频无几何无电离层组合作为周跳探测检验量,以解决电离层延迟活跃期时的周跳处理问题。为保证周跳修复的准确性,提出采用两次历元差分后的电离层残差值对周跳修复值进行验证与确认。通过高电离层延迟条件下的三频观测数据对本文算法进行了验证分析。试验结果表明,该方法可实现高电离层延迟条件下对周跳的探测与修复,并可适用于三频实时、非差导航定位的周跳处理。
在分析三頻無幾何無電離層組閤特性的基礎上,構造瞭3箇線性無關的三頻無幾何無電離層組閤作為週跳探測檢驗量,以解決電離層延遲活躍期時的週跳處理問題。為保證週跳脩複的準確性,提齣採用兩次歷元差分後的電離層殘差值對週跳脩複值進行驗證與確認。通過高電離層延遲條件下的三頻觀測數據對本文算法進行瞭驗證分析。試驗結果錶明,該方法可實現高電離層延遲條件下對週跳的探測與脩複,併可適用于三頻實時、非差導航定位的週跳處理。
재분석삼빈무궤하무전리층조합특성적기출상,구조료3개선성무관적삼빈무궤하무전리층조합작위주도탐측검험량,이해결전리층연지활약기시적주도처리문제。위보증주도수복적준학성,제출채용량차역원차분후적전리층잔차치대주도수복치진행험증여학인。통과고전리층연지조건하적삼빈관측수거대본문산법진행료험증분석。시험결과표명,해방법가실현고전리층연지조건하대주도적탐측여수복,병가괄용우삼빈실시、비차도항정위적주도처리。
A new method based on three linear independence geometry‐free and ionosphere‐free (GIF) combinations to detect and repair cycle‐slip is advanced to finishing the cycle slip processing under the higher ionospheric activity .In order to ensure that the cycle slip correction is accurate ,the repair value is validated by a second‐order ,time‐difference phase ionospheric residual (STPIR) combination .And then , this method is validated and analyzed by using the triple‐frequency data with higher ionospheric error .The experiment results show that this method can nearly detect and repair all the cycle slip except several insensitive cycle slip under high ionospheric activity .So this method can be used to cycle slip procession in triple‐frequency precise point position and other un‐differenced dynamic navigation and position .