Scala, Dsp, Digital Filters, Elliptic, Cheryshev.
Noise Reduction Filter Using Elliptic & Kaiser Techniques [2] How to deal with ECG noise: https://vheart.io/blog/2017/how-to-deal-with-ecg-noise [3] Mahesh S. Chavan, Ra.Agarwala, M.D.Uplane: Digital Elliptic Filter Application For Noise Reduction In ECG Signal