A digital filter has following transfer function. Identify the type of filter and justify it.

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written 6.5 years ago by

teamques10 ★ 69k

• modified 5.5 years ago

$H(z)=\frac{1}{(1+0.9z^(-1)}$

discrete time signal processing

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written 6.5 years ago by

teamques10 ★ 69k

• modified 6.5 years ago

$Put z=e^{jω}$

$H(ω)=\frac{b}{1-0.9e^{-jω}}$

$H(ω)=\frac{1}{((1-0.9 cos⁡w )-j0.9sin w}$

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From pass band it is observed that the given filter is “High pass filter”

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