Linear and Nonlinear Phase

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Introduction to Signal ProcessingSummer 2007

• Linear and Nonlinear Phase
• Ideal and Nonideal Frequency-Selective
• Filters
• 3. CT DT Rational Frequency Responses
• 4. DT First- and Second-Order Systems

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DT Rational Frequency Responses
If the system is described by LCCDEs
(Linear-Constant-Coefficient Difference
Equations), then
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DT First-Order Systems
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Demo Unit-sample, unit-step, and frequency
response of DT first-order systems
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DT Second-Order System
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Demo Unit-sample, unit-step, and frequency
response of DT second-order systems