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Unformatted text preview: to remove zero-mean additive noise while preserving sharp edges in the original signal. 1 (a) Is the system linear? Time-invariant? (b) Is the system causal? (c) What is the systems output for input x [ n ] = [ n ]? Problem 5 For each of the following systems, determine if the system: (i) is linear or nonlinear; (ii) is causal or noncausal; (iii) is time-invariant or time-varying; (iv) has memory or is memoryless. Briey justify your answers. (a) y ( t ) = | x ( t ) | (b) y ( t ) = x ( t ) + 1 (c) y ( t ) =-dy ( t ) dt + x ( t ) Problem 6 (system modelling) Problem 2.15 from Kamen & Heck. 2...
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This note was uploaded on 05/05/2010 for the course ECE 351 taught by Professor Staff during the Spring '10 term at Ohio State.
- Spring '10