搜索 - 科创

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是的，即便是忽略了时钟源的漂移，DDS合成的噪声扰动引起的频偏，要单纯实现10E-n级别的鉴频是很不容易的，况且原帖并未采用高频载波。如果用FFT的方式软鉴频，那么要分辨率到Hz级别的话，必须FFT计...

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