digital Weaver modulation
single-channel digital exploration seismograph
single channel single pulse
single-channel single fiber cable
abrupt phase change digital modulation
All-Digital Modulation Technology
coded-digital modulation
digital channel networks
digital channel receiver
digital moduation signals
digital modulation
数字调制
数字调制器
数位调制
信道
数字灯
数位调变
数字化调制
digital modulation and demodulation system
Digital modulation classification
digital modulation demodulation
Digital Modulation format
Digital modulation identification
digital modulation mode
Digital modulation quality parameters