How to create chirp signals in Omnet++ using INET?

[K]

Hi there!

How can a chirp signal be realized in Omnet++ using INET? I.e. a signal changing the frequency over time.

I am trying to implement a similar chirp signal as in this official video (link) myself, but am struggeling to describe the complex spectrum using e.g. CombinedFunctions. I am grateful for any hints!

Thanks in advance

K

[Levente Mészáros]

See the topic/chirp branch of INET at https://github.com/inet-framework/inet/commits/topic/chirp and look for the hack in DimensionalTransmitterBase.cc.

In this example the chirp power density function is simply a modulated function of the non-chirped power density by a sawtooth function.

Best regards,

levy

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[K]

Thank you very much!! Exactly what I was looking for :-)

Best regards

Konstantin