hello,
   
  im new to the topic of adaptive filters and its implementation in matlab. im doing a project
on 'filtering and analysis of an ECG wave'. we are carrying out all our analysis on an ECG wave
with only a powerline interference (60hz).
   
  the signal available to us is an ECG wave with a noise component of 60hz, sampled at
200hz..the file is in .dat format. we have been able to implement FIR/IIR, notch filtering for
the same in matlab..the 60hz component was successfully filtered out.
   
  can you help me implement an adaptive filter using LMS algorithm for this signal in matlab...
i am not clear with regards to the value of mu(step size), filter order, necessary inputs to be
given to filter etc... can someone please send me a SAMPLE CODE.  
   
  has anybody here worked with ECG waves..any help,suggestions will be appreciated.
   
  thanks
   
  puneetha

hello, puneetha
iam a biomedical engineer and iam working in the same feild that you try to do, ive
successfully implemented a code for LMS algorithm to eleminate the noise from sinusoidal signal
and iam trying to eleminate the interference from ECG signal using LMS, it is easy to choose
the parameters of the filter but you will get a problem in the input to the adaptive filter,
you can use matlab simulink and aptive filter toolbox to insert your signal and simulate the
overall process but finally we need to successfully eleminate the noise,on the other hand iam
working on elemination motion artifacts from the signal, if you are intrested you can send for
me for more information .

b...@yahoo.com
E.mare'a