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Boxcar averaging is a signal smoothing technique that assumes the average of a small number of adjacent points to be a better measure of signal than any of the individual points. For example, in a 3-point boxcar, the first point is the average of points 1, 2, and 3. The second is the average of points 4, 5, and 6, and so on. Data becomes smoother as the size of the boxcar is increased; however, important details may be lost.
不知道楼上说的Box car averaging 滤波是不是这种原理。
如果是的话,那想来也很难做到将同频的信号分离开来。 |
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