网络释义
1)quadrature modulation,正交调制，直角相位调制2)phase quadrature modulation,相位正交调制3)differential quadrature phase shift keying(DQPSK),差动正交相位变换调制4)QPAM Quadrature Phase and Amplitude Modulation,正交相位和幅度调制5)direct quadrature modulate,直接正交调制6)phase modulation/sinusoidal phase modulation,相位解调/正弦相位调制