Ece6258 fall2012 rectangularperiodicsampling f m n f a

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Unformatted text preview: n AlRegib Ghassan AlRegib – f [m, n] ↔ F (u , v) 3 Ghassan AlRegib 4 1 9/3/2012 ECE 6258 Fall 2012 Questions? ECE 6258 Fall 2012 Rectangular Periodic Sampling f [m, n] f a ( x, y ) • When can we reconstruct from ? Fa ( , w) F (u , v) • What is the relation between and ? f [m, n] f a (mX , nY ) Ghassan AlRegib ECE 6258 Fall 2012 5 Relation between and F (u, v) Fa ( , w) Ghassan AlRegib ECE 6258 Fall 2012 6 Fa ( , w) Relation between and F (u, v) Change variable: u X , v Y f [m, n] f a (mX , nY ) But recall: Ghassan AlRegib 7 Ghassan AlRegib 8 2 9/3/2012 ECE 6258 Fall 2012 Relation betweenFa ( , w) andF (u, v) ECE 6258 Fall 2012 Relation betweenFa ( , w) andF (...
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