Microwave radiometer in-orbit calibration method based on antenna directional diagram real-time monitoring
A microwave radiometer and antenna pattern technology, which is applied to antenna radiation patterns, measuring devices, measuring electrical variables, etc., can solve the problems of narrowing the antenna beam width and the inability to accurately calibrate the antenna deformation, and achieves difficult and accurate calibration. high effect
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[0039] This embodiment illustrates the specific implementation of an on-orbit calibration method for a microwave radiometer based on real-time monitoring of antenna pattern according to the present invention.
[0040] Step 1. During specific implementation, install laser distance measuring devices Z1 and Z2, specifically including the following sub-steps:
[0041] Step 1.1 Apply multiple laser reflective materials on the main reflective surface of the antenna;
[0042] Among them, the laser ranging devices Z1 and Z2 emit laser light to irradiate the pasting material, Z1 and Z2 receive the laser signal reflected by the pasting material, Z1 and Z2 calculate the distance between the pasting material and the distance between the pasting material and set it to Grid shape, the grid spacing is 1 / 10 of the antenna diameter, and the grid covers the entire antenna main reflecting surface;
[0043] Among them, the laser reflective material in row i and column j is denoted as Aij;
[00...
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