qfsk瞬时幅度，瞬时相位，瞬时频率，qfsk瞬时幅度，瞬时相位，瞬时频率-qfsk instantaneous amplitude, instantaneous phase, instantaneous frequency, qfsk instantaneous amplitude, instantaneous phase, instantaneous frequency

Generating QFSK modulated signal in Matlab.

QFSK加高斯噪声后，在0-10dB信噪比下，误码率曲线绘制-After QFSK plus Gaussian noise at 0-10dB SNR, BER curves plotted

Quadrature Phase Shift Keying (QPSK) is a form of Phase Shift Keying in which two bits are modulated at once, selecting one of four possible carrier phase shifts (0, 90, 180, or 270 degrees). QPSK allows the signal to carry twice as much information