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Purpose
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Signal with arbitrary frequency modulation.
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Synopsis
[y,iflaw] = fmodany(iflaw)
[y,iflaw] = fmodany(iflaw,t0)
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Description
fmodany generates a frequency modulated signal whose
instantaneous frequency law is approximately given by the vector
iflaw (the integral is approximated by cumsum). The
phase of this modulation is such that y(t0)=1.
| Name |
Description |
Default value |
| iflaw |
vector of the instantaneous frequency law samples |
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| t0 |
time reference |
1 |
| y |
output signal |
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Example
[y1,ifl1]=fmlin(100); [y2,ifl2]=fmsin(100);
iflaw=[ifl1;ifl2]; sig=fmodany(iflaw);
subplot(211); plot(real(sig))
subplot(212); plot(iflaw);
This example shows a signal composed of two successive frequency
modulations: a linear FM followed by a sinusoidal FM.
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See Also
fmconst, fmlin, fmsin, fmpar, fmhyp, fmpower.
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Eric Chassande-Mottin
2005-10-26
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