frequency-shift signaling meaning in English
移频信号
Examples
- The practice of doppler frequency - shift signal extraction in ultrasonic blood flow detector
多普勒频移信号提取技术在超声血流检测中应用 - Because frequency - shift signal is a kind of modulation signal , it ' s waveform is two ac sine signal of alternating i . e . upper frequency and lower frequency which was generated by low frequency modulating middle frequency
由于移频信号是一种调频信号，其波形为低频信号调制中心载频信号后产生的低端载频（下边频）和高端载频（上边频）两个交替变化的正弦交流信号。