Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W.

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Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.1 (a) Continuous-phase curve for a system function evaluated on the unit circle. (b) Principal value of the phase curve in part (a). (c) Integer multiples of 2π to be added to ARG[H(e jω )] to obtain arg[H(e jω )].

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.2 Pole-zero plot for the filter in the example of Section (The number 2 indicates double-order poles and zeroes.)

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.3 Phase response functions for system in the example of Section 5.1.2; (a) Principal value phase, ARG[H(e jω )], (b) Continuous phase arg [H(e jω )].

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.4 Frequency response of system in the example of Section 5.1.2; (a) Group delay function, grd[H(e jω )], (b) Magnitude of frequency response, |H(e jω )|.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.5 Input signal for example of Section 5.1.2; (a) Input signal x[n], (b) Corresponding DTFT magnitude |X(e jω )|.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.6 Output signal for the example of Section

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.7 Pole–zero plot for Example 5.2.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.8 Pole–zero plot for Example 5.5.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.9 Frequency response for a single zero, with r = 0.9 and the three values of θ shown. (a) Log magnitude. (b) Phase. (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.10 z -plane vectors for a 1 st -order system function evaluated on the unit circle, with r < 1.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.11 Frequency response for a single zero, with θ = π, r = 1, 0.9, 0.7, and 0.5. (a) Log magnitude. (b) Phase. (c) Group delay for r = 0.9, 0.7, and 0.5.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.12 Pole–zero plot for Example 5.6.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.13 Frequency response for a complex-conjugate pair of poles as in Example 5.6, with r = 0.9, θ = π/4. (a) Log magnitude.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.13 (continued) Frequency response for a complex-conjugate pair of poles as in Example 5.6, with r = 0.9, θ = π/4. (b) Phase. (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.14 Pole–zero plot for the lowpass filter of Example 5.8.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.15 Frequency response for the lowpass filter of Example 5.8. (a) Log magnitude. (b) Phase. (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.16 Pole–zero plots for two system functions and their common magnitude-squared function. (a) H 1 (z). (b) H 2 (z). (c) C 1 (z). C 2 (z).

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.17 Pole–zero plot for the magnitude-squared function in Example 5.10.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.18 Typical pole–zero plot for an all-pass system.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.19 Frequency response for all-pass filters with real poles at z = 0.9 (solid line) and z = −0.9 (dashed line). (a) Log magnitude. (b) Phase (principal value). (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.20 Frequency response of 2 nd -order all-pass system with poles at z = 0.9e ±jπ/4. (a) Log magnitude. (b) Phase (principal value). (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.21 Frequency response for an all-pass system with the pole–zero plot in Figure (a) Log magnitude. (b) Phase (principal value). (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.22 Illustration of distortion compensation by linear filtering.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.23 Pole–zero plot of FIR system in Example 5.13.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.24 Frequency response for FIR system with pole–zero plot in Figure (a) Log magnitude. (b) Phase (principal value). (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.25 Frequency response for minimum-phase system in Example (a) Log magnitude. (b) Phase. (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.26 Frequency response of all-pass system of Example (The sum of corresponding curves in Figures 5.25 and 5.26 equals the corresponding curve in Figure 5.24 with the sum of the phase curves taken modulo 2π.) (a) Log magnitude. (b) Phase (principal value). (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.27 Four systems, all having the same frequency-response magnitude. Zeros are at all combinations of the complex conjugate zero pairs 0.9e ±j0.6π and 0.8e ±j0.8π and their reciprocals.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.28 Sequences corresponding to the pole–zero plots of Figure 5.27.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.29 Partial energies for the four sequences of Figure (Note that E a [n] is for the minimum-phase sequence h a [n] and E b [n] is for the maximum-phase sequence h b [n].)

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.30 Interpretation of noninteger delay in discrete-time systems.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.31 Representation of a linear-phase LTI system as a cascade of a magnitude filter and a time shift.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.32 Ideal lowpass filter impulse responses, with ωc = 0.4π. (a) Delay = α = 5. (b) Delay = α = 4.5. (c) Delay = α = 4.3.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.33 Examples of FIR linear-phase systems. (a) Type I, M even, h[n] = h[M − n]. (b) Type II, M odd, h[n] = h[M − n]. (c) Type III, M even, h[n] = −h[M − n]. (d) Type IV, M odd, h[n] = −h[M − n].

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.34 Frequency response of type I system of Example (a) Magnitude. (b) Phase. (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.35 Frequency response of type II system of Example (a) Magnitude. (b) Phase. (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.36 Frequency response of type III system of Example (a) Magnitude. (b) Phase. (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.37 Frequency response of type IV system of Example (a) Magnitude. (b) Phase. (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.38 Typical plots of zeros for linear-phase systems. (a) Type I. (b) Type II. (c) Type III. (d) Type IV.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.39 Frequency response of maximum-phase system having the same magnitude as the system in Figure (a) Log magnitude. (b) Phase (principal value). (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure 5.40 Frequency response of cascade of maximum-phase and minimum-phase systems, yielding a linear- phase system. (a) Log magnitude. (b) Phase (principal value). (c) Group delay.

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.1-1

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.1-2

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.10

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.11

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.13

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.15

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.16

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.19

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.20

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.21

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.24 Pole–zero diagram for H(z).

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.25

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.29

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.32

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P The input signal and the filter frequency response

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P Possible output signals

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.42

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.44

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.45

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.46

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.48

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.50

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.54

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.55

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.56

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.63-1

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.63-2

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.63-3

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.65-1

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.65-2

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.65-3

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.65-4

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.70

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.74-1

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.74-2

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.74-3

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.76

Copyright ©2010, ©1999, ©1989 by Pearson Education, Inc. All rights reserved. Discrete-Time Signal Processing, Third Edition Alan V. Oppenheim Ronald W. Schafer Figure P5.77

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