https://de.mathworks.com/help/phased/ref/phased.customfmwaveform-system-object.html
phased.CustomFMWaveform - Custom FM pulse waveform - MATLAB
The phased.CustomFMWaveform System object lets you define a waveform with a user-defined frequency modulation (FM) and waveform envelope.
phasedcustomfmpulsewaveform