DSP: Superimposing quasi periodic signals

Discussion in 'Programmer's Corner' started by John Downs, Sep 13, 2012.

  1. John Downs

    Thread Starter New Member

    Sep 13, 2012
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    Hi everyone.

    I'm new to signal processing. I'm doing a project in matlab that involves using the coherent averaging technique to remove the noise (generated digitally with a mean of zero) from biomedical signals (like egg and emg signals). To do this I need so superimpose the signals to cancel the noise but I don't know how to do it when the frequency varies over time:confused:. Is there some kind of algorithm to deal with this problem? If they were periodic I think it would be much easier. Thanks in advance for your help.

    Regards,
    John
     
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