题目内容
The two common types of white-light LED used in the visible light communication system are ________ and____________.
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The two important problems for VLC considering the illumination constrains are ________ and____________.
The three basic transmission characteristics of theatmospheric opticalchannel are: ______________, ______________, ____________________.
Please presentthe three different categories for atmospheric scattering.
What is the atmospheric turbulenceand what is its effect on atmosphericoptical communication?
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