The invention discloses a satellite-borne SAR (Synthetic Aperture Radar) scene matching curve imaging machine/electricity cooperative wave control optimization method. According to the method, under the condition that a transfer matrix from a satellite orbit coordinate system to a phased array beam coordinate system is known, the analysis relation of a phased array beam control angle, a satellite machine scanning rolling angle, a pitching angle, a yaw angle and an Euler angle is obtained; the method comprises the following steps: establishing a polynomial model for a satellite machine scanning adjustment angle, and obtaining a minimum machine scanning angle time sequence under the constraint of system capability by using a PSO algorithm, thereby obtaining angle time sequences of machine scanning and electric scanning respectively, and realizing satellite-borne SAR scene matching curve imaging machine/electric cooperative wave control optimization. According to the method, the problem that the existing spaceborne SAR scene matching curve imaging beam control method only uses mechanical scanning or electric scanning and lacks mechanical/electric cooperative beam control optimization capability is solved, and the defects in the prior art are overcome.

    本发明公开了一种星载SAR场景匹配曲线成像机/电协同波控优化方法;本发明在卫星轨道坐标系到相控阵波束坐标系的转移矩阵已知的情况下,通过相控阵波束控制角、卫星机扫滚转、俯仰、偏航角和欧拉角的解析关系;将卫星机扫调整角度建立为多项式模型,利用PSO算法得到系统能力约束下最小的机扫角度时序,从而分别得到机扫与电扫的角度时序,实现星载SAR场景匹配曲线成像机/电协同波控优化。本发明解决了现有的星载SAR场景匹配曲线成像波束控制方法都是仅使用机扫或仅使用电扫的,缺乏机/电协同波控优化能力的问题,弥补了现有技术的不足。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Satellite-borne SAR (Synthetic Aperture Radar) scene matching curve imaging machine/electricity cooperative wave control optimization method


    Weitere Titelangaben:

    星载SAR场景匹配曲线成像机/电协同波控优化方法


    Beteiligte:
    WANG YAN (Autor:in) / GUO QINGRUI (Autor:in) / CHEN KE (Autor:in) / HUANG JINYANG (Autor:in) / SHI YIPENG (Autor:in)

    Erscheinungsdatum :

    17.01.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G06N COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS , Rechnersysteme, basierend auf spezifischen Rechenmodellen / B64G Raumfahrt , COSMONAUTICS / G01S RADIO DIRECTION-FINDING , Funkpeilung / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



    SATELLITE BORNE SYNTHETIC APERTURE RADAR

    MOREIRA NETO JOAO ROBERTO / KONO JANIO | Europäisches Patentamt | 2023

    Freier Zugriff

    Satellite-borne high-integration synthetic aperture radar antenna unfolding system

    SHI XINGXING / ZHOU WEIXING / YAO WEILIN et al. | Europäisches Patentamt | 2023

    Freier Zugriff



    Characterizing wave coherence with satellite-based synthetic aperture radar

    Walker, D. T. / Lyzenga, D. R. / Renouf, M. | British Library Online Contents | 2001