Hi For the CMA equaliser, the modulus refers to the desired I^2+Q^2 (modulus) value that each sample pair should have. This is a constant value, since any variations are due to multipath. The algorithm tries to remove amplitude variations given what the modulus of the signal should be in the absence of multipath.
mu is the step size. I don't exactly know how to calculate the boundaries for mu to ensure convergence, but you're right, it is related to the higher-order statistics of the signal. I know that mu should be very small (something like 1*10^-9) to ensure convergence. All the times I've used it, I've used trial and error to get a value for mu. I implemented a CMA equaliser in Matlab that I can send you if you're interested. Sebastiaan -- Sebastiaan Heunis Radar Remote Sensing Group, University of Cape Town, South Africa Tel: +27 72 950 9370 _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
