Satellite-borne Ka frequency band adaptive water vapor compensation imaging method

The invention discloses a satellite-borne Ka frequency band self-adaptive water vapor compensation imaging method, which comprises the following steps of: obtaining vertical distribution of atmospheric temperature and height distribution of water vapor density according to echo data in a back-stepping manner to obtain a water vapor attenuation value, so as to carry out gain automatic adjustment and feedback to obtain an automatic gain control code; gain adjustment is carried out according to the automatic gain control code to step the loss of the echo data, imaging is carried out according to the compensated echo data, and related data is stored in a database, so that effective compensation of water vapor is realized, the accuracy of the data is improved, and an image with an imaging effect can be obtained. 本发明公开了一种星载Ka频段自适应水汽补偿成像方法，通过根据回波数据反推获得大气温度的垂直分布和水汽密度的高度分布获得水汽衰减值，从而进行增益自动调整反馈获取自动增益控制码，根据自动增益控制码进行增益调整以步长回波数据的损失，根据补偿后回波数据进行成像并将相关数据存储至数据库，从而实现水汽的有效补偿，提高数据的准确性可以获得成像效果的图像。