... 相移编码 phase-shift coding 相移编码器 phase-shift coder 相移常数 phase-shift constant ...
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与当前通过编码的相移键控(PSK)调制相对，还存在另外的通过子载波的调制。
Compared to current phase shift keying (PSK) modulation by a code, there is a further modulation by a sub-carrier.
设计出了二次调制系统：采用连续可变斜率增量调制（ CV SD）实现模拟话音信号与数字编码的转换，采用二进制相对相移键控（2 DPSK）作为数字调制方式。
A twice modulation is designed:, CVSD was adopted to realize conversion between analog and digital voice signals, 2DPSK was used as the digital modulation mode.
提出一种新的光学轮廓术线性编码轮廓术，它利用周期线性结构光编码三维物面，并辅以相移技术来解调相位。
A new optical profilometry linearly coded profilometry is presented. It USES a periodic linear structure illuminating light to code the surface and the phase shifting technique to decode the phase.
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