Unformatted text preview: y [ n ] = 0 . 5 y [ n1] + x [ n ] . Using ztransform, determine the formula for the response of this system to input x [ n ] = u [ n ]. 4. The input to a digital ﬁlter is x [ n ] = { ⇓ 1 , . 5 } and the response is described by y [ n ] = δ [ n + 1]2 δ [ n ]δ [ n1]. (a) Determine the transfer function of this ﬁlter. (b) Is this a FIR ﬁlter or an IIR ﬁlter? Justify. (c) Is this ﬁlter stable? Is it causal? Justify....
View
Full
Document
This note was uploaded on 05/25/2010 for the course BME 171 taught by Professor Izatt during the Spring '08 term at Duke.
 Spring '08
 IZATT

Click to edit the document details