An angles only navigation system. The system includes an IMU coupled with a passive optical sensor. The optical sensor provides periodic updates to the IMU in order to correct for accelerometer and gyro drifts. The IMU computes the air vehicle's instantaneous position, velocity, and attitude using gyro and accelerometer measurements. The optical sensor images stars and satellites. The navigation filter combines optical sensor measurements with IMU inputs, and determines those corrections needed to compensate for the IMU drifts. By applying periodic corrections to the IMU using satellite angular measurements, the navigation filter maintains an accurate position estimate during an entire flight.


    Access

    Download


    Export, share and cite



    Title :

    Angles only navigation system


    Contributors:

    Publication date :

    2015-12-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G01S RADIO DIRECTION-FINDING , Funkpeilung



    Observability Criteria for Angles-Only Navigation

    Woffinden, D.C. / Geller, D.K. | IEEE | 2009


    Observability Criteria for Angles-Only Navigation

    Woffinden, D.C. | Online Contents | 2009


    Autonomous orbital rendezvous using angles-only navigation

    Chari, Raja Jon Vurputoor, 1977- | DSpace@MIT | 2001

    Free access


    Optimal Orbital Rendezvous Maneuvering for Angles-Only Navigation

    Woffinden, David C. / Geller, David K. | AIAA | 2009