When a target is in range of a satellite, a minimum swath width (eta) is calculated to account for attitude changes of the satellite, and represent the width which is certain to be within targeting range of the satellite. A push-broom trajectory, which represents the projection of the satellites path onto the imaged surface, is calculated using the minimum strip width and the boundaries of the targeted region. The push-broom trajectory and the minimum strip width are then substituted into a model, which uses a conjugate quaternion-based coordinate transformation, to calculate coordinates of the four vertices of the strip. To ensure coverage of the entire region by overlapping strips, the planes containing the push-broom trajectories may be generated recursively. The final strip may be corrected, by shortening it and/or moving it inwards, to avoid redundancies in detection. Strips to cover linear targets may be obtained by fitting using forward matching.


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    Title :

    Agile satellite target decomposition method and system based on push-broom trajectory


    Contributors:
    CHENG CHEN (author) / TAO WANG (author) / XIAOLU LIU (author) / RENJIE HE (author) / WENYUAN YANG (author) / YINGWU CHEN (author) / YUNING CHEN (author) / JIMIN LV (author) / YINGGUO CHEN (author) / LINING XING (author)

    Publication date :

    2021-04-07


    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 / B64G Raumfahrt , COSMONAUTICS



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