UPSOOK modulation method with forward error correction based on mobile phone camera

The invention provides a UPSOOK modulation method with a forward error correction function based on a mobile phone camera, which belongs to the field of visible light communication, and specifically comprises the following steps: firstly, constructing a visible light communication system model comprising a transmitting end and a receiving end; a transmitting end generates a data packet, designs a data frame structure based on UPSOOK, and realizes signal modulation based on an undersampling modulation scheme; then, a mobile phone camera of a receiving end records a video for the single LED lamp, and after image processing, a judgment threshold of a self-adaptive threshold value is obtained; sending to a demodulator, and demodulating each frame of image by using a self-adaptive threshold to obtain a demodulation sequence S, namely an initial sequence of data; performing error correction on the demodulation sequence by using a forward error correction mechanism aiming at frame rate jitter, and recovering an info