- Sample time — Sample time of signal. To avoid aliasing, the software chooses the
sample time such that the Nyquist frequency of the signal is five times the upper
end of the frequency range,
2 π
5*max(FreqRange)
.
- Number of samples
- Initial phase
- Sweep method
- Sweep shape
(^4) Click OK to create the chirp input signal. A new input signal in_chirp1 appears in
the Linear Analysis Workspace.
You can now select this signal in the Input Signal drop-down list for estimation.
The mapping between the parameters of the Create chirp input dialog box in the Linear
Analysis Tool and the properties of frest.Chirp is as follows:
Create chirp input dialog box frest.Chirp property
Frequency range > From First element associated with the
'FreqRange' option
Frequency range > To Second element associated with the
'FreqRange' option
Amplitude 'Amplitude'
Sample time (sec) 'Ts'
Number of samples 'NumSamples'
5 Frequency Response Estimation