同义词
1)keying,quadrature phase shift (QPSK),正交相位变换键控2)QPSK Quaternary Phase Shift Keying,四元相位换档按键，正交相移键控3)keying,phase shift (PSK),相位变换键控4)keying,binary phase shift (BPSK),二进制相位变换键控5)keying,differential phase shift (DPSK),差动相位变换调键控6)differential quadrature phase shift keying(DQPSK),差动正交相位变换调制
