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and Yang’s idea for eliminating interference was very simple: ascertain the frequency spectrum and characteristics of solar radiation in the monitored range, and then filter it out digitally. Both of them were technical, and at that time,and Yang’s idea for eliminating interference was very simple: ascertain the frequency spectrum and characteristics of solar radiation in the monitored range, and then filter it out digitally. Both of them were technical, and at that time, when the ignorant often led the knowledgeable, that was a rare bit of fortune. But Yang wasn’t a specialist in astrophysics, and Lei had taken the path of becoming a political officer, which prevented him from accruing in-depth technical know-how. In reality, electromagnetic radiation from the sun is only stable within the limited range from near-ultraviolet to mid-infrared...more