... 四相相移键控：QPSK 四相相移：quaternary phase shift 四糖：Tetrasaccharide ...
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四相相移键控 QPSK ; quadrature phase shift keying ; QPSK-Quadrature Reference Phase Shift Keying
差分四相相移键控 differential quadrature phase keying ; DQPSK ; differential quadrature phase shift keying ; DQPSK Differential Quadrature PSK
偏置四相相移键控 offset QPSK
偏移四相相移键控 OQPSK ; offset quadraphase shift keying
交错四相相移键控 OQPSK ; SQPSK ; offset QPSK spaggered QPSK
正交四相相移键控 OQPSK
参差四相相移键控 SQPSK
锁相环四相相移键控 phased-locked loop quadrature phase shift keying
四相相移键控调制 QPSK ; Quaternary Phase Shift Keying
四相相移调制是利用载波的四种不同相位差来表征输入的数字信息，是四进制移相键控。
Quadrature phase shift carrier modulation is used to represent the four different phase inputs of digital information, is quaternary phase shift keying.
偏移四相相移键控（OQPSK）是一种适用于在限带非线性信道中使用的高效恒包络数字调制技术。
The offset quadrature phase-shift-keyed(OQPSK) is an effective digital constant envelope modulation for band-limited nonlinear channel.
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