GPS spoofing simulation based on the data from GNSS receiver

I am currently working on an anti-spoofing algorithm, I have to simulate a spoofing attack such as a fake coordinates of my current location. I got some data from my GNSS receiver(u-blox). How can I do to simulate a spoofing attack?

[Imtiaz nabi]

Hi there, I have been working on constructing a simplistic spoofing attack for GNSS in Matlab. If you are interested in collaborating I can guide you on how to generate spoofing signal

[Romaissa]

Me too i am workkng on it can you help me please [e-mail] here is my email.