HW02

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Signals and Systems 29 August 2012 Fall 2012 Quiz: Wednesday 5 September 2012 Homework Assignment #2 1. Make a sketch of each of the following discrete-time signals. (a) ) 5 ( ) 2 ( ) ( 2 ) ( = k u k u k u k x s s s (b) ) 5 ( ) ( ) 1 ( ) ( ) ( + + = k u k u k k k x s s δ δ (c) )] 5 ( ) 2 ( [ )] 2 ( ) ( [ 2 ) ( + = k u k u k u k u k x s s s s (d) )] 12 ( ) 3 ( [ ) 3 / sin( ) ( = k u k u k k k x s s π (e) )} ( ) 6 . 0 4 . 0 Re{( ) ( k u j k x s k + = 2. For each of the input-output relations, determine whether the system is linear or nonlinear, time-invariant or time-varying, causal or non-causal. (a) + = t d x t x t y τ τ ) ( 5 ) ( 2 )
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  • Fall '09
  • MALIKELBULUK
  • SIGNALS, Nonlinear system, real solutions, dτ, following discrete-time signals

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