Principal component analysis has long been used for a variety of signa
l processing applications, including signal compression. Neural networ
k implementations of principal component analysis provide a means for
unsupervised feature discovery and dimension reduction. In this paper
we describe a method for the compression of ECG data using principal c
omponent analysis. Hebbian neural networks were used for principal com
ponents computation. A variety of examples of normal and pathological
ECGs obtained from the MIT ECG database demonstrate that the proposed
method cart provide compression ratio up to 30 with PRD% less than 5%.