I found out that my step size keep varying around the initial step size
that I set. Can I anyone please help?




>Currently I am trying to design an equalizer based on variable step size
>(VSS) NLMS algorithm. The adaptation of the step size is based on the
>instataneous squared error. The number of taps is 55. My initial ste
size
>(which is also equivalent to max. step size allowable) is 0.6 and the
>minimum step size allowable is 0.35, with the "Alpha" = 0.97, "Gamma" =
>0.0005. I compare it to the conventional NLMS algorithm with the sam
tap
>length and step size of 0.4 It is found that both algorithms achieve
>similar steady state error but the conventional NLMS algorithm still can
>achieve faster speed as compared to the VSS NLMS. What is the problem
>actually? Anything wrong with the setting of maximum step size, Alph
and
>Gamma? Can anyone please help? Many thanks.
>