It’s not just a textbook. It’s a rite of passage.
Every time I revisit the chapter on the Hilbert transform or the matched filter, I find a detail I missed before. That’s the mark of a great textbook. teoria dei segnali luise vitetta
So if you see that green cover in a university library or on a used-book site for €20 — buy it. Your future self (studying for the esame di Comunicazioni Digitali ) will thank you. It’s not just a textbook