varlms

#varlms function for Scilab

What is it?

This function creates an AdaptiveAlgorithm Object for Variable Step Size LMS to use it with lineareq or dfe to create an equalizer object.
This function has been developed for Communication toolbox in Scilab under Project FOSSEE Toolbox.

Usage

• Change current directory to path/to/function/.
• In Scilab prompt, run: exec('cma.sci'). This will load the function in environment.
  The function is tested on Scilab 5.5.2. There is no specific OS requirement.

Instructions

alg = varlms(initstep, incstep, minstep, maxstep, leakage_factor)

• Input Arguments:

  • initstep : Initial value of stepsize
  • incstep : Increment in initial value of stepsize after every iteration
  • minstep : Minimum value of stepsize
  • maxstep : Maximum value of stepsize
  • leakage_factor : Leakage Factor parameter for algorithm (Default = 1)

• Output:

  • alg : Adaptive Alagorithm Object based on Input parameters. Implemented as a Structure type.

Example

alg = varlms(0.1, 0.01, 0.001, 1)

Output:

alg  =
   AlgType: "Variable Step Size LMS"
   LeakageFactor: 1
   InitStep: 0.1
   IncStep: 0.01
   MinStep: 0.001
   MaxStep: 1

License

This file must be used under the terms of the CeCILL. This source file is licensed as described in the file COPYING, which you should have received as part of this distribution. The terms are also available at
http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt