MATLAB command vitdec

[Placebo69]

I wrote a code but i have a problem to the end...
After this b3=pskdemod(b2,2)

I have a matrix with 0 1 for example

b3 =

Columns 1 through 21

1 0 1 1 0 1 0 etc

But when i try the command

b5=vitdec(b3,t,tb,'cont','hard')

There is the following message

??? Error using ==> vitdec
CODE must be a vector of real numbers


If anyone can help...0 1 aren't real numbers??

Thnks in advance!!

 

[superkar]

is 't' your trellis? and what 'tb' are you using? and since you're essentially doing a bpsk demod with pskdemod(b2,2), try doing a slice to implement hard decision bpsk demod (demodout = (b2>0) ), or use b3 = real(b3) in your code.. post the answers you find, and we'll discuss further.