脉波波期调变遥测 telemetering pulse duration modulation

次载波调变 subcarrier modulation ; modulation subcarrier

音频调变检波器 detector audio modulation

数位脉波调变 Digital Pulse Modulation

载波调变 Dual-Carrier Modulation

脉波内调变 intrapulse modulation ; modulation intrapulse

可变载波调制 [电子] [通信] variable carrier modulation

调变脉波 pulse modulating