digital signal processing, Yonghong Zeng (covariance based of signal detection for cognitive radio), filters design
Read about inpulse response invariance filter design method.
See my lecture on the subject attached.
Summarising the impulse invariance method:
1. start off with the analogue filter transfer function H(s);
2. apply partial fractions to factorise H(s);
3. split into linear and quadratic factors that will give you real and complex exponentials;
4. apply inverse Laplace transform to find components of h(t), i.e., obtain the impulse response of the continuous system;
5. sample h(t) to obtain hn for the discrete system (be careful with the choice of the sampling period here!);
6. find z-transform for each of the factors;
7. assemble the z-transfer function;
8. from H(z) write down the difference equation;
9. implement it.
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