Generate swept-frequency cosine (chirp) signal - Simulink
https://www.mathworks.com/help/dsp/ref/chirp.html
For Linear, Quadratic, and Swept cosine sweeps, the initial frequency, f 0, of the output chirp signal.You can specify the Initial frequency (Hz) as a scalar, greater than or equal to zero. For Logarithmic sweeps, Initial frequency is one less than the actual initial frequency of the sweep. Also, when the sweep is Logarithmic, you must set the Initial frequency to be less than the …
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