FFT里面能量功率spectrum和频谱(幅度)图有啥关系. 比如举例: 一个SIN(400T)的波..做过FFT以后能量功率怎么算? 还有一个问题.spectrum图里面各个频率的能量是怎么算的?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/27 15:06:57
![FFT里面能量功率spectrum和频谱(幅度)图有啥关系. 比如举例: 一个SIN(400T)的波..做过FFT以后能量功率怎么算? 还有一个问题.spectrum图里面各个频率的能量是怎么算的?](/uploads/image/z/9955702-46-2.jpg?t=FFT%E9%87%8C%E9%9D%A2%E8%83%BD%E9%87%8F%E5%8A%9F%E7%8E%87spectrum%E5%92%8C%E9%A2%91%E8%B0%B1%28%E5%B9%85%E5%BA%A6%29%E5%9B%BE%E6%9C%89%E5%95%A5%E5%85%B3%E7%B3%BB.+%E6%AF%94%E5%A6%82%E4%B8%BE%E4%BE%8B%3A+%E4%B8%80%E4%B8%AASIN%28400T%29%E7%9A%84%E6%B3%A2..%E5%81%9A%E8%BF%87FFT%E4%BB%A5%E5%90%8E%E8%83%BD%E9%87%8F%E5%8A%9F%E7%8E%87%E6%80%8E%E4%B9%88%E7%AE%97%3F+%E8%BF%98%E6%9C%89%E4%B8%80%E4%B8%AA%E9%97%AE%E9%A2%98.spectrum%E5%9B%BE%E9%87%8C%E9%9D%A2%E5%90%84%E4%B8%AA%E9%A2%91%E7%8E%87%E7%9A%84%E8%83%BD%E9%87%8F%E6%98%AF%E6%80%8E%E4%B9%88%E7%AE%97%E7%9A%84%3F)
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