A system for achieving spacecraft camera (1, 2) image registration comprises a portion external to the spacecraft and an image motion compensation system (IMCS) portion onboard the spacecraft. Within the IMCS, a computer (38) calculates an image registration compensation signal (60) which is sent to the scan control loops (84, 88, 94, 98) of the onboard cameras (1, 2). At the location external to the spacecraft, the long-term orbital and attitude perturbations on the spacecraft are modeled. Coefficients (K, A) from this model are periodically sent to the onboard computer (38) by means of a command unit (39). The coefficients (K, A) take into account observations of stars and landmarks made by the spacecraft cameras (1, 2) themselves. The computer (38) takes as inputs the updated coefficients (K, A) plus synchronization information indicating the mirror position (AZ, EL) of each of the spacecraft cameras (1, 2), operating mode, and starting and stopping status of the scan lines generated by these cameras (1, 2), and generates in response thereto the image registration compensation signal (60). The sources of periodic thermal errors on the spacecraft are discussed. The system is checked by calculating measurement residuals, the difference between the landmark and star locations predicted at the external location and the landmark and star locations as measured by the spacecraft cameras (1, 2).


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Spacecraft camera image registration


    Beteiligte:

    Erscheinungsdatum :

    1987-08-18


    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch





    Fast Image Registration for Spacecraft Autonomous Navigation Using Natural Landmarks

    Yun-Hua Wu / Lin-Lin Ge / Feng Wang et al. | DOAJ | 2018

    Freier Zugriff

    Efficient Registration of Aerial Image Sequences Without Camera Priors

    Niranjan, Shobhit / Gupta, Gaurav / Mukerjee, Amitabha et al. | Springer Verlag | 2007


    The image dissector camera. A new approach to spacecraft sensors

    Brachflower, G. A. / Koenig, E. W. | NTRS | 1967


    The Image Dissector Camera - A new approach to spacecraft sensors.

    Branchflower, G. A. / Koenig, E. W. | NTRS | 1968