EDUCATION: Making Wavelets

Science  09 May 2003:
Vol. 300, Issue 5621, pp. 873
DOI: 10.1126/science.300.5621.873a

The mathematical technique known as wavelet analysis is useful for everything from recognizing abnormal heart rhythms to digitally storing fingerprints to squeezing trends out of long-term climate data. This tutorial by engineering professor Robi Polikar of Rowan University in Glassboro, New Jersey, lets you plunge into wavelets without drowning in mathematics. Geared for engineers and other nonmathematicians, the tutorial explains how wavelet analysis works and delineates its advantage—superior resolution—over other methods of signal analysis, such as the Fourier transform. The overview boasts a friendly style and plentiful illustrations.∼polikar/WAVELETS/WTtutorial.html

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