The invention discloses a double-side swing-scanning ultra-wide coverage SAR satellite system, a scanning method and a scanning device, and relates to the field of spacecraft design. According to the invention, the problem that high-resolution wide-width imaging is difficult to realize by the traditional spaceborne SAR is solved. According to the invention, the problem that only a single SAR antenna is installed in most of the existing SAR satellite schemes and the field of view is expanded through attitude maneuver of a satellite platform is solved. And the contradiction naturally exists between the two indexes of resolution and breadth, so that high-resolution and wide-breadth imaging is difficult to realize by a traditional satellite-borne SAR (Synthetic Aperture Radar). The system comprises a satellite, a rotating mechanism and two SAR antennas, the two SAR antennas are distributed on the two sides of the satellite in an axial symmetry mode through the rotating mechanism. The method is realized based on the double-side swingable ultra-wide coverage SAR satellite system, and comprises the following steps: dividing a scanning area into distance direction N * azimuth direction M sub-strips; and the SAR antenna carries out scanning according to the divided M sub-strips and carries out splicing. The method is applied to the satellite monitoring field.

    一种双侧可摆扫超宽覆盖SAR卫星系统、扫描方法和装置,涉及航天器设计领域。本发明解决了传统星载SAR难以实现高分宽幅成像的问题。本发明解决了现有的SAR卫星方案大多只安装单个SAR天线,通过卫星平台的姿态机动扩展视场。并且由于分辨率和幅宽两个指标之间天然存在着矛盾,传统星载SAR难以实现高分宽幅成像的问题。所述系统包括:卫星、旋转机构和两个SAR天线;所述两个SAR天线通过旋转机构呈轴对称分布在卫星两侧。所述方法基于上述所述的一种双侧可摆扫超宽覆盖SAR卫星系统实现,包括:将扫描区域划分为距离向N×方位向M个子条带;SAR天线根据划分的M个子条进行扫描,并进行拼接。本发明应用于卫星监测领域。


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    Titel :

    Double-side swing-scanning ultra-wide coverage SAR satellite system, scanning method and device


    Weitere Titelangaben:

    一种双侧可摆扫超宽覆盖SAR卫星系统、扫描方法和装置


    Beteiligte:
    WEI CHENG (Autor:in) / LI DAI (Autor:in) / GUO JINSHENG (Autor:in) / WU FAN (Autor:in) / CAO XIBIN (Autor:in)

    Erscheinungsdatum :

    2023-04-25


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64G Raumfahrt , COSMONAUTICS / G01S RADIO DIRECTION-FINDING , Funkpeilung / H01Q Antennen , ANTENNAS, i.e. RADIO AERIALS



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