Design & Realization of Adaptive Noise Canceller on TMS320 C6713 Digital Signal Processor
Keywords:
Electrocardiography, Adaptive noise canceller, DSP, LMS, FXLMS, SDLMS, PLIAbstract
One of the main problems in bio-medical data processing like electrocardiography is the separation of
the wanted signal from the noises caused by power line interference, external electromagnetic fields, random body
movements and respiration. Different types of digital filter are used to remove signal components from unwanted
frequency ranges. It is difficult to apply filter with fixed coefficient to reduce the bio-medical signal noises,
because human behavior is not exact known depending on the time. Adaptive filter technique is required to
overcome this problem. An Adaptive noise canceller based on an improved algorithm has been designed by DSP.
The algorithm is introduced and simulated in MATLAB, then realized on the digital signal processor.