noisy circuit

基本解释

By using closed-loop feedback circuit weak signal can be picked up from noisy background.
采用闭环反馈电路，可使系统从环境大噪声中提取出微弱的信号。
Although the modulator produces a noisy output, future columns will show that the circuit "shapes" this noise into the higher frequencies of the output spectrum.
虽然调节器产生一个带噪声的输出，但是未来的列说明电路将噪声“塑造”成更高频率的输出频谱。
The reason for the continued use of analog video includes easy access to low cost circuit designs, use of inexpensive copper cabling, and analog video degrades "gracefully" in noisy environments.
继续使用模拟视频的原因包括：很容易获得低成本电路设计、可以使用低廉的铜线缆，以及在嘈杂的环境中模拟视频性能的下降比较平缓。