FIGURE 2-1 Typical digital signal processing system.

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Presentation transcript:

FIGURE 2-1 Typical digital signal processing system. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-2 Analog signal. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-3 Sample-and-hold signal (shown with analog signal). Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-4 Digital signal (shown with sample-and-hold signal). Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-5 Undersampled analog signals. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-6 Aliasing in the time domain with 40 kHz sampling (adapted from Pohlmann, 1994). Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-7 Antialiasing Filter. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-7 Antialiasing Filter. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-7 Antialiasing Filter. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-8 Signal and its spectrum. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-8 Signal and its spectrum. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-8 Signal and its spectrum. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-9 Spectra of original and sampled signals. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-9 Spectra of original and sampled signals. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-10 Sine wave sampled at Nyquist rate. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-11 Spectra of sampled sine waves. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-11 Spectra of sampled sine waves. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-12 Sampling band-limited signals. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-12 Sampling band-limited signals. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-12 Sampling band-limited signals. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-13 Undersampling in target detection. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-14 Oversampling. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-14 Oversampling. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-15 Quantization of unipolar data (maximum error = full step). Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-16 Quantization of unipolar data (maximum error = half step). Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-17 Quantization diagram for Example 2.2. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-18 Quantization of bipolar data (maximum error = half step). Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-19 Analog-to-digital conversion. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-20 A/D. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-21 Three-bit A/D conversion. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-22 Serial digital bitstream. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-23 Digital-to-analog conversion. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-24 D/A. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-25 Three-Bit D/A conversion. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-26 Comparing signals in the A/D/D/A chain. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-26 Comparing signals in the A/D/D/A chain. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-26 Comparing signals in the A/D/D/A chain. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-26 Comparing signals in the A/D/D/A chain. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-27 Spectrum for Question 2.6. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-28 Magnitude spectrum for Question 2.7. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-29 Spectrum for Question 2.10(a). Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-30 Spectrum for Question 2.1(b). Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.

FIGURE 2-31 Signals for Question 2.19. Joyce Van de Vegte Fundamentals of Digital Signal Processing Copyright ©2002 by Pearson Education, Inc. Upper Saddle River, New Jersey 07458 All rights reserved.