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Unformatted text preview: than 1 also satisfy. 3. N needs to be a multiple power of 2. Satisfying the three conditions above, the minimum values for sampling rate and sample size are: f s = 64 Hz, N = 64(Γ = 1) Other possibilities include: f s = 64 Hz, N = 256(Γ = 4) f s = 128 Hz, N = 128(Γ = 1) See Figure 1 for their amplitude spectrum. 1 5 10 15 20 25 30 35 1 2 3 4 5 Frequency (Hz) Amplitude (a) f s = 64 Hz,N = 64 5 10 15 20 25 30 35 1 2 3 4 5 Frequency (Hz) (b) f s = 64 Hz,N = 256 Figure 1: Amplitude spectrum. Note N = 256 gives better frequency resolution than N = 64. 2...
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 Spring '08
 SMELA
 Digital Signal Processing, Aliasing, Signal Processing, sampling rate, Nyquist–Shannon sampling theorem

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