The selected point(s) appears blue.TipTo select multiple frequency points, click and drag across the frequency points of
interest.(^4) Enter the new values for the signal parameters.
If the parameter value is
some of the frequency points selected.
(^5) Click OK to save the modified input signal.
Modify Sinestream Signal Using MATLAB Code
For example, suppose that you used a sinestream input signal, and the output at a specific
frequency did not reach steady state. In this case, you can modify the characteristics of
the sinestream input at the corresponding frequency.
input.NumPeriods(index) = NewNumPeriods;
input.SettlingPeriods(index) = NewSettlingPeriods;
where index is the frequency value index of the sine wave you want to modify.
NewNumPeriods and NewSettlingPeriods are the new values of NumPeriods and
SettlingPeriods, respectively.
To modify several signal properties at a time, you can use the set command. For
example:
input = set(input,'NumPeriods',NewNumPeriods,...
'SettlingPeriods',NewSettlingPeriods)
After modifying the input signal, repeat the estimation.
5 Frequency Response Estimation