Need information for chirp modulation implementation in matlab

I am working in implementation of chirp slope keying modulation and demodulation in MATLAB.

Simulations that I completed are:

1. Chirp signal(up and down chirp) generation completed

2. LFM with up-chirp and down-chirp simulated

3. Random data generation completed

4. finally, am working to simulate the CSK MODULATED SIGNAL. but, i got struck in modulated signal that means not getting properly.


could you please give me the information about the chirp slope modulation to implement in MATLAB.