This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
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( = 1) Other possibilities include: f s = 64 Hz, N = 256( = 4) f s = 128 Hz, N = 128( = 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...
View
Full
Document
This note was uploaded on 02/13/2011 for the course ENME 351 taught by Professor Smela during the Spring '08 term at Maryland.
 Spring '08
 SMELA

Click to edit the document details