The invention relates to a spacecraft orbit maneuver detection method and device based on nonlinear deviation evolution. The method comprises the steps that according to orbit measurement data, measurement orbit determination state statistical value vectors of a target spacecraft at the front moment and the rear moment are calculated, a target spacecraft state vector at the rear measurement momentis predicted according to the front measurement data, and the predicted target spacecraft state vector is compared with the measurement orbit determination state statistical value vector at the rearmeasurement moment; when the deviation is greater than a preset value, evolution is performed by non-linear deviations, forward prediction is carried out based on the measured orbit determination state statistical value vector at the previous moment; and backward prediction is performed based on the subsequent measured orbit determination state statistical value vectors, two orbit determination state statistical value vectors are obtained at each prediction moment, and when the deviation between the two orbit determination state statistical value vectors at a certain moment is smaller than a preset value, the two measurement data are determined to correspond to the same target spacecraft before and after maneuvering. By adopting the method, the target spacecraft data obtained by two timesof detection can be matched, and the orbital maneuver condition of the target spacecraft can be identified in near real time.

    本申请涉及一种基于非线性偏差演化的航天器轨道机动检测方法和装置。所述方法包括:根据轨道测量数据,计算前后两个时刻目标航天器的测量定轨状态统计值矢量,根据在前测量数据预测在后测量时刻的目标航天器状态矢量,与在后测量时刻的测量定轨状态统计值矢量比较。当偏差大于预设值时,通过非线性偏差演化,基于在前时刻的测量定轨状态统计值矢量进行前向预测,基于在后的测量定轨状态统计值矢量进行后向预测,在每个预测时刻上得到两个定轨状态统计值矢量,当某个时刻二者偏差小于预设值时,判定两次测量数据对应于机动前后的同一目标航天器。采用上述方法能够匹配两次检测获得的目标航天器数据,近实时地识别出目标航天器的轨道机动情况。


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    Title :

    Spacecraft orbit maneuver detection method and device based on nonlinear deviation evolution


    Additional title:

    基于非线性偏差演化的航天器轨道机动检测方法和装置


    Contributors:
    YANG ZHEN (author) / LUO YAZHONG (author) / SHU PENG (author) / ZHANG JIN (author) / LI ZEYUE (author)

    Publication date :

    2020-11-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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