工程师您好:
我要用传感器测量一个指数衰减的信号,假如系统的带宽是100KHz,如果噪声在这个带宽内的RMS值是200uV,那么我的信号衰减到什么程度就不能分辨了?如果我将传感器的噪声谱密度从1KHz后开始降低,那么噪声是可以降低吗?此时信号衰减进入噪声区的时间是否可以变长?
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