Yanrong Pei

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This paper conducts a research on modulation characteristics of blue light-emitting diodes (LEDs) used in a visible-light communication (VLC) system. Through analysis of the modulation characteristics of LEDs with different emitting sizes, we find that there is a similar linear relationship between LED’s 3dB bandwidth and the operation current density. This(More)
This paper studies a new type of solar spectral fitting technique based on LED. Firstly, Using the light collecting equipment collected several typical periods of the solar spectrum of Beijing. And then, After a preliminary analysis, five specific bands LEDs are used to fit the target solar spectrum. Among them, the use of two pieces of normal white light(More)
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