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DSP_FOEHU - Lec 06 - The z-Transform
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Amr E. Mohamed
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njnj jj ez z ez z 2 1 u(n)}n)({cos 1)(cos2 )(cos )(cos21 )(cos1 u(n)}n)({cos 2 2 21 1 zz zz zz z 1)(cos2 )(s )(cos21 )(s u(n)}n)({sin 221 1 zz inz zz inz
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x nZ o RROCzXznnx o x n nnZ o
RROCzzXznnx o o x(n)- 0n x Zn RROCzXnx / nurenurenunrnx njnj o n oo 2 1 2 1 cos
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1z:ROCassume 1 1 1 1 1 1 11 azza zY
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kdzkk zXzdA 1 1 1 1 1 ! 1 idw s ims ms ms i m
wXwd dw d dms C
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