东南大学学报（自然科学版）2017，Vol.47Issue(1)：43-49,7.DOI:10.3969/j.issn.1001-0505.2017.01.009
基于分步无电离层组合的北斗三频长距离参考站间宽巷模糊度解算方法
Stepwise ionosphere-free wide-lane ambiguity method for long-range base stations with BDS triple-frequency observation
摘要
Abstract
Aiming at the triple-frequency wide-lane/extra-wide-lane ambiguity resolution for long-range base stations of Beidou navigation satellite system (BDS),the main factors and limitations were analyzed for wide-lane combination (WLC )method,the carrier and pseudorange combined geometry-free and ionosphere-free (GIF)method,the three-carrier ambiguity resolution (TCAR) method.Then,a new stepwise ionosphere-free (SIF)method was proposed based on the character-istics known by baseline components.First,the (0,-1 ,1 )ambiguity could be solved reliably with single epoch.After that,in order to solve the second wide-lane ambiguity,the ambiguity-fixed (0,-1 ,1 )observation was used to form a ionosphere-free carrier observation together with the second wide-lane combination.The effects on the residual geometry errors were analyzed.BDS triple-fre-quency baseline data with a real distance of 265 km were used to test the performance.The results indicate that the proposed SIF method can avoid the influence of ionosphere delay on long-range baselines with smaller observation noises.关键词
北斗/三频/宽巷模糊度/长基线/电离层延迟Key words
Beidou navigation satellite system (BDS)/triple frequency/wide lane ambiguity/long-range baseline/ionosphere delay分类
天文与地球科学引用本文复制引用
高旺,高成发,潘树国,乔龙雷,赵庆..基于分步无电离层组合的北斗三频长距离参考站间宽巷模糊度解算方法[J].东南大学学报（自然科学版）,2017,47(1):43-49,7.基金项目
国家自然科学基金资助项目（41574026）、中央高校基本科研业务费专项资金资助项目（KYLX15＿0159）、东南大学优秀博士学位论文培育基金资助项目（YBJJ1635）． （）
