Digital Communication Modulation Signal Simulation System: Signal Types

In digital communications, signal modulation is the process of converting digital signals into analog signals. Digital signals can be transformed using various modulation schemes, including MASK, MPSK, MFSK, MQAM, and OFDM. Specifically, MASK modulation encompasses variants such as 2ASK, 4ASK, and 8ASK. MPSK modulation includes 2PSK, 4PSK, and 8PSK. MFSK modulation comprises 2FSK, 4FSK, and 8FSK, which are further categorized into Continuous Phase FSK (CPFSK) and Discrete Phase FSK (DPFSK). MQAM modulation involves schemes like 16QAM, 32QAM, 64QAM, and 128QAM. OFDM modulation allows for the flexible selection of subcarrier quantities and employs mapping methods such as BPSK, QPSK, 4QAM, 16QAM, 32QAM, or 64QAM.

Therefore, in digital communications, signal modulation is a critical process for enabling digital signal transmission. By appropriately selecting modulation schemes and integrating modern communication technologies, efficient and reliable digital communication can be achieved.