EE 435 Lect 30 Spring 2010

EE 435 Lect 30 Spring 2010 - EE 435 Lecture 30 Spectral...

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EE 435 Lecture 30 Spectral Performance – Windowing
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Distortion Analysis ( ) 1 - h m 0 1 mN Χ N 2 A P m + = ( ) 0 k Χ = THEOREM: If N P is an integer and x(t) is band limited to f MAX , then and for all k not defined above where is the DFT of the sequence f = 1/T, and ( ) 1 N 0 k k Χ = ( ) 1 N 0 k S kT x = MAX P f N f = 2 N .• Review from last lecture .• • •
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Question: How much noise is in the computational environment? Environmental Noise Observation: This noise is nearly uniformly distributed The level of this noise at each component is around -310dB .• Review from last lecture .• • •
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