13.07.2015 Views

ELE610 FPGA-del, 2013. Lab. 3, Multiratefilter. Innhold

ELE610 FPGA-del, 2013. Lab. 3, Multiratefilter. Innhold

ELE610 FPGA-del, 2013. Lab. 3, Multiratefilter. Innhold

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1.5De 100 første sampler av v, signalfrekvens f1=8 Hz.10.50−0.5−1−1.50 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2Tid i sekund, f2s=500 Hz.Figur 18: Signalet v, det er x oppsamplet med en faktor på 5.−20Effektspeter for v estimer med pwelch.−25−30Power/frequency (dB/Hz)−35−40−45−50−55−600 0.05 0.1 0.15 0.2 0.25Frekvens i kHz (samplerate er 500 Hz)Figur 19: Effektspekteret av signalet v.22

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