Issue with PSK.M in Matlab

Communications_engineer — Sun, 08 Nov 2009 18:42:02 -0500

How pskmod.m works? I mean QPSK is supposed to make two bits as input
and output one symbol.

But when I use pskmod([1 1 1 1 0 0 0 0],4), the length of the answer
remains same i.e. 8 and not 4

I wonder if this is going to affect the BER performance of QPSK in
Matlab

I know the solution too that I can use reshape and blah blah blah, but
I want to know why Matlab has not made it correct? Maybe it has no
affects?

Comments from experts are welcome

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Issue with PSK.M in Matlab