(3) |
The smallest time interval is s=0.05, so is well above 1/2s, but p is 0.01. As expected, we observe that the Nyquist frequency is at 50, and that there is no strong aliasing peak before (Fig. 1).
If we had rounded the times to 0.001 in the above example and had p at 0.001, we would have found at 500.
Figure 1: Spectral window G_{N} and power spectrum F_{N} for the simulation described in the text. Both functions are clearly symmetrical around . No peak appears for at |
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