Translations:The Nyquist frequency/15/en

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Figure 6.  (a) Actual signal of frequency 250 Hz, with the same sample points as its aliased signal of frequency 250 - 250 = 0 Hz. (b) Actual signal of frequency 225 Hz, with the same sample points as its aliased signal of frequency 250 - 225 = 25 Hz. (c) Actual signal of frequency 200 Hz, with the same sample points as its aliased signal of frequency 250 - 200 = 50 Hz.