ecen4763.notes.2

ecen4763.notes.2 - Signal properties: Periodic vs....

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8/21/2009 1 ECEN 4763: Introduction to Digital Signal Processing Fall 2009 Lecture 2: Wednesday, August 19, 2009 Course Progression Time Difficulty Review
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8/21/2009 2 Course Progression Time Difficulty CT signals CT systems Review of CT Stuff: Big Picture 1. What is a CT signal? 2. Common CT signals 3. Convolution of CT signals 4. Linear and time-invariant CT systems
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8/21/2009 3 Review of CT Stuff: Big Picture 1. What is a CT signal? 2. Common CT signals 3. Convolution of CT signals 4. Linear and time-invariant CT systems What is a CT signal?
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8/21/2009 4 What is a CT signal? What is a CT signal? • Examples of CT signals: – Voltage across a resistor as a function of time – Brightness of a light as a function of time – Amplitude of speech as a function of time – and many, many more…
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8/21/2009 5 Review of CT Stuff: Big Picture 1. What is a CT signal? 2. Common CT signals 3. Convolution of CT signals 4. Linear and time-invariant CT systems Common CT signals
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8/21/2009 6 Common CT signals Common CT signals
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8/21/2009 7 Common CT signals Common CT signals
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8/21/2009 8 Common CT signals
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Unformatted text preview: Signal properties: Periodic vs. aperiodic signals Timelimited vs. non-timelimited signals Signal energy and power Review of CT Stuff: Big Picture 1. What is a CT signal? 2. Common CT signals 3. Convolution of CT signals 4. Linear and time-invariant CT systems 8/21/2009 9 Convolution of CT signals d t h x ) ( ) ( ) ( ) ( ) ( t h t x t y Convolution of CT signals d t h x ) ( ) ( ) ( ) ( ) ( t h t x t y Why do we learn and do convolution? 8/21/2009 10 Review of CT Stuff: Big Picture 1. What is a CT signal? 2. Common CT signals 3. Convolution of CT signals 4. Linear and time-invariant CT systems CT systems 8/21/2009 11 Linear CT systems Linear CT systems 8/21/2009 12 Time-invariant CT systems CT systems (LTI) 8/21/2009 13 CT systems (LTI) CT systems (TI but not L) 8/21/2009 14 CT systems (L but not TI) LTI CT systems 8/21/2009 15 8/21/2009 16 8/21/2009 17 8/21/2009 18 8/21/2009 19 8/21/2009 20 8/21/2009 21 The almighty impulse response The almighty impulse response...
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ecen4763.notes.2 - Signal properties: Periodic vs....

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