The invention discloses a
scatterometer in-
orbit satellite-ground integrated calibration method,
system and device, a medium and a product, and relates to the field of
radar calibration, and the method comprises the steps: screening
scatterometer observation signals, carrying out the quality inspection of the downloading data of a
scatterometer, extracting the quality inspection data in an external calibration working
time range, and carrying out the detection of the quality inspection data in the external calibration working
time range; determining a
pitch angle and an
azimuth angle of the
satellite-to-earth connection line according to the quality inspection data, performing calibration by combining with a scatterometer observation
signal received by a ground calibration
station to obtain an
antenna gain of the scatterometer, and performing interpolation on the
antenna gain of the scatterometer to obtain a
satellite-to-earth connection line; determining an actual antenna pattern of the scatterometer and determining a comparison result of the actual antenna pattern and an antenna pattern measured in a laboratory before emission; and calculating a theoretical backscattering coefficient according to the
antenna gain and the amplification
gain of the active calibrator, determining an actual backscattering coefficient according to the quality inspection data and the antenna
gain of the scatterometer in combination with a measured antenna pattern, further determining an
absolute calibration coefficient, and completing a calibration task. According to the invention, the calibration precision and the inspection capability of the scatterometer are improved.