Help! Difference between Walsh and Hadamard Codes?

[Communications_Engineer]

Hello I hope you're all doing fine; the member of edaboard

Now, my question is, what is the difference between Walsh codes and Hadamard codes and the so-called Walsh-Hadamard codes, tehy all look the same to me.

Can some one explain?

 

[Aya2002]

hi Communications_Engineer
Dr. Mahmood which is a member in ofdmandmatlab know the answer. as his PhD was specialised on this problem.

Thanks