GNSS signal processing to estimate orbits

专利名称：GNSS signal processing to estimate orbits发明人：Herbert Landau,Markus Nitschke申请号：US13393202申请日：20100919公开号：US08847820B2公开日：20140930

专利附图：

摘要：Methods and apparatus are described for processing a set of GNSS signal dataderived from signals of GNSS satellites observed at reference station receivers, the datarepresenting code observations and carrier observations on each of at least two carriersover multiple epochs, comprising: obtaining an orbit start vector comprising: a time

sequence of predicted positions and predicted velocities for each satellite over a firstinterval, and the partial derivatives of the predicted positions and predicted velocitieswith respect to initial positions, initial velocities, force model parameters and Earthorientation parameters, obtaining ionospheric-free linear combinations of the codeobservations and the carrier observations for each satellite at multiple referencestations, and iteratively correcting the orbit start vector using at each epoch the

ionospheric-free linear combinations and predicted Earth orientation parameters, as soonas the ionospheric-free linear combinations of the epoch are available, to obtain updatedorbit start vector values comprising a time sequence of predicted positions and predictedvelocities for each satellite over a subsequent interval of epochs and an estimate of Earthorientation parameters.

申请人：Herbert Landau,Markus Nitschke

地址：Hoehenkirchen DE,Munich DE

国籍：DE,DE

代理机构：Kilpatrick Townsend & Stockton LLP

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