公开(公告)号：EP2815252A1

公开(公告)日：2014-12-24

申请号：EP12868524.5

申请日：2012-02-17

申请人： Veitsel, Vladimir Viktorovich ,  Zhodzishsky, Mark, Isaakovich ,  Veitsel, Viktor Abramovich ,  Veitsel, Andrey Vladimirovich ,  Nikitin, Dmitry Pavlovich ,  Plenkin, Andrey Valerievich

发明人： VEITSEL, Vladimir Viktorovich ,  ZHODZISHSKY, Mark Isaakovich ,  VEITSEL, Victor Abramovich ,  VEITSEL, Andrey Vladimirovich ,  NIKITIN, Dmitry Pavlovich ,  PLENKIN, Andrey Valerievich

IPC分类号： G01S19/43

CPC分类号： G01S19/13 ,  G01S19/41 ,  G01S19/426 ,  G01S19/43

摘要： A navigation receiver operating in a differential navigation mode can change from one solution type to another. At each epoch, primary estimates of coordinates and the solution type are received. Each solution type has a corresponding accuracy. To improve the positioning quality when the solution type changes, smoothed estimates of coordinates are generated according to a two-branch algorithm. Two conditions are evaluated. If both conditions are satisfied, the current-epoch smoothed estimates of coordinates are set equal to the current-epoch extended estimates of coordinates calculated from the sum of the previous smoothed estimates of coordinates and coordinate increments calculated from carrier phases. If at least one of the conditions is not satisfied, updated smoothed estimates of coordinates are generated based on the sum of the current-epoch extended estimates of coordinates and a correction signal.