一种有源定标器雷达截面积标校方法及装置

• Format: Patent
• Language: Chinese
• Published: 08.09.2023
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

本发明提供一种有源定标器雷达截面积标校方法及装置。其中，该方法包括：基于星载合成孔径雷达获取沿等距离线部署的有源定标器和角反射器的点目标图像数据；并基于点目标图像数据确定有源定标器和角反射器的点目标图像能量；基于角反射器的雷达截面积值与点目标图像能量的比值，以及有源定标器的点目标图像能量，计算有源定标器的雷达截面积值；基于所述雷达截面积值对所述有源定标器的雷达截面积进行标校。采用本发明公开的有源定标器雷达截面积标校方法，操作简单，能够同时实现多套有源定标器雷达截面积值的高精度标校，减少了有源定标器标校次数，有效提高了有源定标器雷达截面积标校的稳定性和效率，降低了成本。 The invention provides an active scaler radar sectional area calibration method and device. The method comprises the following steps: acquiring point target image data of an active scaler and a corner reflector deployed along an equidistance line based on a satellite-borne synthetic aperture radar; determining point target image energy of the active scaler and the corner reflector based on the point target image data; calculating the radar sectional area value of the active scaler based on the ratio of the radar sectional area value of the corner reflector to the point target image energy and the point target image energy of the active scaler; and calibrating the radar sectional area of the active calibrator based on the radar