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Lesson_2 - Lesson2:Mathematical Whatsitallabout...

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  Lesson 02 Lesson 2: Mathematical  Representation of Signals What’s it all about?  Signal history  Signal domains  Continuous-time  signal processing   Discrete-time  signal processing   Digital signal processing (DSP)
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  Lesson 02 Origins of Signal Processing Pre-technology 25 Watts
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  Lesson 02 Origins of Signal Processing Analog technology (continuous-time)  Contributors (many) Telephone Photography Radio
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  Lesson 02 Signal Domains Continuous-time signals  Infinite resolution in time and amplitude Eg: x(t)=cos( ϖ 0 t)  {exists for all time}
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  Lesson 02 Signal Space (Analog & Discrete)   Analog Simple analog crossover network
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  Lesson 02 Signal Domains Example:  Analog Filter
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  Lesson 02 Signal Domains Example:  Neural network Mathematical model
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  Lesson 02 Origins of Signal Processing Sampled technology (discrete-time)  Contributors (Shannon, Nyquist) Time division telephony  Sampled-data control
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  Lesson 02 Signal Domains Discrete-time 
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