A satellite and/or dead-reckoning navigation integrated positioning device with improved accuracy including position, velocity, etc. is disclosed. A tracking processing module performs, based on a GPS signal, acquisition and tracking thereof and demodulation of a navigation message. A GPS calculation module calculates position, velocity, and the like based on pseudo-range and Doppler frequency observations, and ephemeris data and gives the calculations to output judgment and tracking processing modules. Based on external support information including inertial sensor output, map information or information about differences between map position and measured position, along with the pseudo-range and Doppler observations, an integrated positioning calculation module estimates position, velocity, and the like, and gives the estimates to the output judgment module. The output judgment module compares outputs of the GPS calculation and the integrated positioning calculation modules to judge reliability of data from the integrated positioning calculation module and abnormality of external support data.


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    Title :

    Satellite navigation/dead-reckoning navigation integrated positioning device


    Contributors:

    Publication date :

    2017-07-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G01S RADIO DIRECTION-FINDING , Funkpeilung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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    Free access


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    G. P. Roston / E. P. Krotkov | NTIS | 1991


    Aerial navigation by dead reckoning

    Maffert, Pierre | NTRS | 1922


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    Tsakiri, M. / Royal Institute of Navigation | British Library Conference Proceedings | 1994