Please provide more context on your question such as your workflow, use-case and requirement for such a signal generator. As "Chirp compression signal" generator is not shipped with Simulink, you have to create the signal generator on your own. You might want to refer one of our File exchange submission to get started -
https://www.mathworks.com/matlabcentral/fileexchange/58719-chirp-signal-compression-simulator--cscs-.
As this is a third party submission, if you have any questions on this submission, you have to contact the author directly.