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CE146 - Adaptive Notch Filtering using LMS Algorithm

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A Least Mean Square Adaptive Notch Filter is used for cancellation of sinusoidal interferences in amplitude sensitive information signals like ECG and other biomedical signals.

About this Code Example

A Least Mean Square Adaptive Notch Filter is used for cancellation of sinusoidal intereferences in amplitude sensitive information signals like ECG and other biomedical signals.

In this example, the dsPIC33F is interfaced with a Si3000 codec.
The Si3000 is used as a ADC module which takes in an analog signal and provides the discrete signal to the dsPIC for processing. Then the dsPIC aims at reducing the noise content in the signal by filtering the signal using a block LMS filter with time delayed copy of the input signal as reference signal for adaptive filtering.


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Release History

  • Apr 19, 2012

    Version: 1.0.0

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  • Current Version:1.0.0
  • Created:Apr 19, 2012
  • Updated:Feb 26, 2015
  • Downloads:3869
  • MPLAB Version:v8.xx or higher
  • C Compiler:C30 v3.01 or higher
  • Development Tools:dsPICDEM 1.1 Plus development board
  • Supported Devices:dsPIC33FJ256GP710 or dsPIC33Fxxxx

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