公开(公告)号：KR102038049B1

公开(公告)日：2019-10-29

申请号：KR1020170134816

申请日：2017-10-17

Applicant: 국방과학연구소

Inventor： 양재원 ,  류충호 ,  이동주 ,  김지훈 ,  윤재혁

IPC: G01S13/87 ,  G01S7/40

公开(公告)号：KR101389516B1

公开(公告)日：2014-05-27

申请号：KR1020130072937

申请日：2013-06-25

Applicant: 국방과학연구소

Inventor： 정명득 ,  양훈기 ,  윤재혁

IPC: G01S13/89 ,  G01S13/88

Abstract: The present invention relates to an image device of bistatic radar and an imaging method thereof which comprises a coherent signal processing unit, a platform information input unit, an image signal processing unit, and an image outputting unit. The coherent signal processing unit receives a second signal returned after a first signal transmitted from transmission radar of bistatic radar is arrived to a target terrain in a platform of the reception radar. The coherent signal processing unit extracts range information regarding scattering points within the target terrain and coherent-processes data included in a same range bin among range profiles which are calculated using the range information. The coherent signal processing unit extracts a doppler frequency regarding the scattering points, and a reflection coefficient corresponding to the doppler frequency. The platform information input unit measures a speed vector of a reception radar platform separated from the transmission radar and extracts the moving speed and moving direction of the reception radar platform from the speed vector. An image signal processing unit extracts a coordinate of the scattering points using the doppler frequency, the reflection coefficient, the moving speed, and the moving direction. The image outputting unit outputs an image by mapping the data including the reflection coefficient and the coordinate of the scattering points to the coordinate.

Abstract translation: 本发明涉及一种双向雷达的图像装置及其成像方法，包括相干信号处理单元，平台信息输入单元，图像信号处理单元和图像输出单元。 相干信号处理单元接收在从双向雷达的发射雷达发射的第一信号到达接收雷达的平台中的目标地形之后返回的第二信号。 相干信号处理单元提取关于目标地形内的散射点的范围信息，以及使用范围信息计算的距离轮廓中包括在相同范围bin中的相干处理数据。 相干信号处理单元提取关于散射点的多普勒频率以及对应于多普勒频率的反射系数。 平台信息输入单元测量与传输雷达分离的接收雷达平台的速度向量，并从速度向量提取接收雷达平台的移动速度和移动方向。 图像信号处理单元使用多普勒频率，反射系数，移动速度和移动方向提取散射点的坐标。 图像输出单元通过将包括反射系数和散射点的坐标的数据映射到坐标来输出图像。