There are three types of filter responses: impulse response, step response, and frequency response. Suppose I want to know how the filter reacts to a sudden change in the input, state which type of filter response I should compute? Then, plot the corresponding filter response (first 100 samples) for the two filters separately.用matlab回答
时间: 2023-12-14 17:37:29 浏览: 31
If you want to know how the filter reacts to a sudden change in the input, you should compute the step response of the filter.
To plot the step response for two filters in MATLAB, you can follow these steps:
1. Define the transfer functions for the two filters, for example:
```
H1 = tf([1 2], [1 3 2]);
H2 = tf([1 4], [1 5 6]);
```
2. Compute the step response for each filter using the `step` function:
```
[y1, t1] = step(H1, 100);
[y2, t2] = step(H2, 100);
```
The `100` parameter specifies the number of samples to compute.
3. Plot the step response for each filter using the `plot` function:
```
plot(t1, y1, t2, y2);
legend('Filter 1', 'Filter 2');
xlabel('Time');
ylabel('Output');
```
This will create a plot with the step response for both filters, labeled with a legend and axis labels. The `plot` function will automatically plot the first 100 samples of each response.
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