Method for improving on-orbit performance of SAR satellite based on electromechanical combined scanning
A satellite and satellite parameter technology, applied in the field of SAR satellite on-orbit performance improvement based on electromechanical joint scanning, can solve problems such as increased grating lobes, reduced imaging range, image blur performance, and decreased signal-to-noise ratio
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[0074] In order to make the purpose, technical solution and advantages of the present invention clearer, the following will further describe the public implementation manners of the present invention in detail with reference to the accompanying drawings.
[0075] refer to figure 1 , shows a flow chart of steps of a method for improving the on-orbit performance of a SAR satellite based on electromechanical joint scanning in an embodiment of the present invention. In this embodiment, the SAR satellite on-orbit performance improvement method based on electromechanical joint scanning includes:
[0076] Step 101, determine the desired target azimuth resolution ρ a and the desired imaging scene length W a , and the maximum electrical scanning range θ that the satellite antenna can provide e and beam scan step value d θ .
[0077] In this embodiment, the expected target azimuth resolution ρ can be given according to the application requirements and satellite capabilities, combin...
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