ABSTRACT
In this chapter, we introduce an important mathematical tool for describing nonstationary (NS) biomedical signals: jointtime frequency analysis (JTFA). In the following sections, we describe various transforms used to make JTF plots. ese include the short-term Fourier transform (STFT), the Gabor and adaptive Gabor transforms, the Wigner-Ville and psuedo-Wigner-Ville transforms, Cohen’s general class of JTF transforms, and the use of wavelets in JTF analysis. In addition, some applications of JTFA in biomedicine are described, and certain sources of free JTFA soware on the World Wide Web are given.
