Re: [Discuss-gnuradio] gr-cdma

[Frank Pinto]

Sounds good! I figured this already just wanted to be sure. And will I be able to plot the BER vs. Eb/NO by using the writing and reading to fifo or simply reading and writing to a file and importing the data to matlab for the BER vs Eb/NO plot? 

On Friday, January 23, 2015 5:59 PM, Frank Pinto <address@hidden> wrote:

Sounds good! I figured this already just wanted to be sure. And will I be able to plot the BER vs. Eb/NO by using the writing and reading to fifo or simply reading and writing to a file and importing the data to matlab for the BER vs Eb/NO plot?




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At Jan 23, 2015, 5:53:58 PM, Achilleas Anastasopoulos wrote:

The beautiful thing about open source is that all the detail are there for you to see!

Looking at the cdma_parameters.py file,

you can see:

pulse_training = numpy.array((1,1,1,1,-1,1,1,-1))+0j
pulse_data =numpy.array((-1,1,-1,1,-1,-1,-1,-1))+0j

so we are using 8 chips per symbol with two orthogonal codes for training and data.

You can change them and put anything you like (they better be orthogonal AND each should have good

autocorrelation properties-- or at least the training code should)

best,
Achilleas