C-OOK OFDM APPARATUS AND METHOD FOR RECEIVING A SIGNAL OF HYBRID WAVEFORM BASED ON C-OOK AND OFDM AND SEPARATING MODULATED SIGNALS USING FILTER

摘要

A signal receiving method according to an embodiment of the present disclosure is a signal receiving method in which a processor of a signal receiving apparatus including a rolling camera performs at least a part of each step, wherein the rolling camera takes a light source multiple times at different times to obtain an image Generating a frame, on the basis of an image frame, generating a one-dimensional composite signal including a C-OOK (Camera-On-Off Keying) modulated signal and an OFDM (Orthogonal Frequency Division multiplexing) modulated signal. applying a low pass filter to at least a portion to generate a C-OOK modulated signal, and applying a high pass filter to at least a portion of the synthesized signal to generate an OFDM modulated signal, and based on the C-OOK modulated signal, a C- demodulating the first signal according to the OOK demodulation method and demodulating the second signal according to the OFDM demodulation method based on the OFDM modulated signal.