User`s guide

8 Model Analysis
Noise Spect ru m P lot Se tting s (C onti n u ed )
Action
Command
Change the frequency
values for computing
the n oise spectrum.
The d efault frequency
vector is 128 linearly
distributed values,
greater than zero and
less than or equal to the
Nyquist frequency.
Select Options > Frequency range and specify
a new frequency vector in units of radians per
second.
Enter the frequency vector using any one of
following methods:
• MATLAB expression, such as
[1:100]*pi/100
or logspa ce(- 3,-1,200).Cannotcontain
variables in the MATLAB workspace.
• Row vector of values, such as
[1:.1:100]
Tip To restore the default frequency vector, enter
[].
Change frequency units
between hertz and
radians per second.
Select Style > Frequency (Hz) or
Style > Frequency (rad/s).
Change frequency scale
between linear and
logarithmic.
Select Style > Linear frequency scale or
Style > Log frequency scale.
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