GNSS signal processing methods and apparatus with

专利名称：GNSS signal processing methods and

apparatus with geometric filter

发明人：Nicholas Charles Talbot,Ulrich Vollath申请号：US13143194申请日：20100216公开号：US08614642B2公开日：20131224

专利附图：

摘要：Methods and apparatus are provided for processing a set of GNSS signal dataderived from signals of a first set of satellites having at least three carriers and signals ofa second set of satellites having two carriers. A geometry filter uses a geometry filter

combination to obtain an array of geometry-filter ambiguity estimates for the geometryfilter combination and associated statistical information. Ionosphere filters use a two-frequency ionospheric combination to obtain an array of ionosphere-filter ambiguityestimates for the two-frequency ionospheric combinations and associated statisticalinformation. Each two-frequency ionospheric combination comprises a geometry-freetwo-frequency ionospheric residual carrier-phase combination of observations of a firstfrequency and observations of a second frequency. Auxiliary ionosphere filters use anauxiliary ionospheric combination to obtain an array of auxiliary-ionosphere-filterambiguity estimates for the auxiliary ionospheric combinations and associated statisticalinformation. Each auxiliary ionospheric combination uses carrier-phase observations of athird frequency and carrier-phase observations of at least one of the first frequency andthe second frequency. A combined array of ambiguity estimates is prepared for all carrierphase observations and associated statistical information by combining the arrays of thegeometry filter and the ionosphere filters and the auxiliary ionosphere filters.

申请人：Nicholas Charles Talbot,Ulrich Vollath

地址：Ashburton AU,Ismaning DE

国籍：AU,DE

代理人：Bruce D Riter

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