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1. |
Convert analogue filter into IIR digital filter with system function. The digital filter is to have resonant frequency \({\omega _r} = \frac{\pi }{2}\) (use by bilinear transformation)\(H\left( s \right) = \frac{{s + 0.1}}{{{{\left( {s + 0.1} \right)}^2} + 16}}\) |
A. | \(H\left( z \right) = \frac{{0.128 + 0.006{z^{ - 1}} - 0.122{z^{ - 2}}}}{{1 + 0.0006{z^{ - 1}} + 0.975{z^{ - 2}}}}\) |
B. | \(H\left( z \right) = \frac{{0.128 + 0.006{z^{ - 1}} + 0.122{z^{ - 2}}}}{{1 + 0.0006{z^{ - 1}} + 0.975{z^{ - 2}}}}\) |
C. | \(H\left( Z \right) = \frac{{0.128}}{{1 + 0.0006{z^{ - 1}}}}\) |
D. | \(H\left( Z \right) = \frac{{0.006{z^{ - 1}}}}{{1 + 0.0006{z^{ - 1}}}}\) |
Answer» B. \(H\left( z \right) = \frac{{0.128 + 0.006{z^{ - 1}} + 0.122{z^{ - 2}}}}{{1 + 0.0006{z^{ - 1}} + 0.975{z^{ - 2}}}}\) | |