专利内容由知识产权出版社提供
专利名称：GNSS SIGNAL PROCESSING WITH
IONOSPHERIC BRIDGING FORRECONVERGENCE
发明人：LEANDRO, LEANDRO,VOLLATH,
ULRICH,TALBOT, NICHOLAS, CHARLES
申请号：EP12761111申请日：20120311公开号：EP26266A4公开日：20140903
摘要：Methods and apparatus provide for positioning of a rover antenna from GNSSdata derived from multi-frequency signals and correction data derived from a network ofreference stations. Rover antenna position and multi-frequency ambiguities are estimatedat each epoch. An ionospheric filter models variation in ionospheric bias per satellite. Aset of ionospheric carrier-phase ambiguities is estimated at least when the multi-frequency ambiguities have attained a predetermined precision. The estimated
ionospheric carrier-phase ambiguities are cached. After detecting interruption of signal atthe rover antenna and determining reacquisition of signals at the rover antenna, anionospheric bias per satellite over an interruption interval is predicted. For each satellite,a cached ionospheric carrier-phase ambiguity is combined with a predicted ionosphericbias to obtain a post-interruption ionospheric ambiguity estimate. The post-interruptionionospheric ambiguity estimates are used to aid estimation of rover antenna positionafter signal reacquisition.
申请人：TRIMBLE NAVIGATION LIMITED
更多信息请下载全文后查看
