lecture1

lecture1 - EE102 SYSTEMS & SIGNALS Fall Quarter, 2001....

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Fall Quarter, 2001. Instructor: Fernando Paganini.
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Signal : Function that describes the evolution of a variable with time. Examples: Voltage across an electrical component. Position of a moving object. + _ V(t) x(t)
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Sound = pressure of the air outside your ear t p Information lies in the time evolution. The signal can be converted to and from other domains: Electrical (in a stereo), electro-chemical (in your brain). What matters is the mathematical structure.
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Signal examples (cont): Population of a species over time (decades) Daily value of the Nasdaq Time can be continuous (a real number) or discrete (an integer). This course focuses on continuous time.
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System : component that establishes a relationship between signals Example: circuit Relationship between voltages and currents. Vs R1 R2 R3 V1 Is Io
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Systems: examples Car: Relationship between signals: Throttle/brake position Motor speed Fuel concentration in chamber
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This note was uploaded on 01/29/2011 for the course EE 102 taught by Professor Levan during the Spring '08 term at UCLA.

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lecture1 - EE102 SYSTEMS & SIGNALS Fall Quarter, 2001....

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