afc automatic frequency control 自动频率调节 ; 声场控制 ; 自动频率控制
AFC Automatic Frequency Coder 音频编码器
AFC C Automatic Frequency Coder 音频编码器
It adopts auto adaptive step to track the frequency offset, so that it can shorten the AFC (Automatic frequency correction) tracking period and improve frequency precision.
新算法可以自适应地调节本振频率跟踪载波频率的阶距，从而很好地缩短了AFC的跟踪时间和改进了频率校正的精度。
In order to make the RF source and the waveguide have the same resonant frequency, the automatic frequency control (AFC) system is used.
为了使得射频源和波导管的频率保持一致，采用了自动频率控制系统(afc)。
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