MPSK调制信号在AWGN信道与瑞利信道等信道下的性能比较-MPSK modulated signals in AWGN channel and Rayleigh channel and other channels in the performance comparison

QPSK produces two bits per symbol, making it very spectrally efficient. QPSK can be referred to as 4-PSK because there are four amplitude-phase combinations. By using smaller phase shifts, more bits can be transmitted per symbol. Some popular variat