- A digital filter has the difference equation
𝑦(𝑛) = 1.349𝑦(𝑛 − 1) − 0.514𝑦(𝑛 − 2) + 0.0413𝑥(𝑛) + 0.0825𝑥(𝑛 − 1) + 0.0413𝑥(𝑛 − 2)
- Draw the block diagram of the filter
Use the sampling time T𝑠 = 0.02
- Draw a Bode graph and describe from the graph the type of filter in question. How much are the frequencies 1 𝐻𝑧, 5 𝐻𝑧 and 20 𝐻𝑧 attenuated on a linear scale (amplitude decrease)?
- Draw a graph with input signal and filtered signal as the input signal is an edge wave with a frequency of 1 Hz
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