Hilbert-Huang Transformation based solar light noise suppression method

Solar light noise, as the main part of channel noise in outdoor visible light communication (VLC) system, would easily saturate the photon-detector, and dramatically decrease the outdoor VLC system performance. A Hilbert-Huang Transformation based solar light noise suppression method is proposed in this paper. A solar light noise measurement system is also designed and implemented to verify the noise suppression method´s performance. And the measurement result shows that it could effectively reduce the solar light noise, and improve the VLC system´s stability and reliability.