audio pre-amplification 音频预放大
Compared with the exsiting systems, our design system has 15~30 expansion in the dynamic range. So sanmping pre-amplification and digital contrast hybrid technology can effectively expand the dynamic range of AGC system.
与既有系统比较,获得了动态范围15~30dB的扩大,充分证明了采样前级放大技术及数字对比技术的混合使用能有效扩大AGC系统动态范围。
参考来源 - 90dB大动态范围可控AGC系统及其在雷达远程测量平台中的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
The SPD R&D includes five modules: SPD bias voltage, pre-amplification, avalanche signal extraction, temperature control and digital control circuit.
将单光子探测器的研制分为偏置电压、前置放大、雪崩信号提取、温度控制和数字控制电路五个模块。
With nanopores, however, virtually no chemical pre-processing is required and no amplification. Instead a single strand of DNA can be read, one base pair at a time, and without the need for labelling.
但是如果用纳米孔，实质上就不需要化学与处理和“放大”，取而代之的是，可以一次一个碱基对地读出单条dna链，也不用标记。
This changes the pre - amplification of the signal before it goes to the volume fader.
这改变了前放大的信号之前，这就是音量推子。
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