Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Removing baseline wandering in ECG. (a) Discrete wavelet transform of ecg(n) to find coefficient sequences hk(n),gk(n),gk−1(n),· · ·,g1(n). The means zero sequence. (b) Top: input ECG, ecg(n), bottom: wandering baseline in ECG, baseline(n). (c) Top: ecg(n), bottom: ecg(n)-baseline(n). When k is (d) too small or (e) too large, top: ecg(n), middle: baseline(n), bottom: ecg(n)-baseline(n).
