Method for on-orbit optimization of imaging parameters of TDI CCD camera
An optimization method and imaging parameter technology, applied in the field of aerospace optical remote sensing, can solve the problems of parameter setting errors, time-consuming, cumbersome calculation process, etc., achieve high accuracy, convenient software implementation, and avoid the effect of parameter setting errors
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[0040] Such as figure 1 Shown, the realization process of the present invention is:
[0041] 1) According to the latitude of the current imaging area The solar declination angle δ and solar hour angle t at the current imaging moment are used to calculate the solar altitude angle h. The specific calculation formula is:
[0042]
[0043] The specific formula for calculating the solar declination angle δ is:
[0044] δ=arcsin(0.398sin(S L ));
[0045] S L =4.87+0.0175d+0.033sin(0.0175d);
[0046] d=30(m-1)+m d ;
[0047] In the formula, d is the order of the day, m is the month, and m d for the day of the month.
[0048] The solar hour angle t is 0° at 12:00 local time, plus +15° every hour before and after.
[0049] According to the above method, the solar altitude angle and solar zenith angle at any point (longitude, latitude) on the earth at any time (year, month, day, hour, minute, second) can be calculated.
[0050] 2) Count the existing satellite image data of ...
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