Quadratic and Higher Order Time-Frequency Analysis Based on the STFT
نویسنده
چکیده
where w(τ) is a real-valued even lag window. Implementations (hardware and software) of this transform are already widely present in practice. The STFT is linear and very simple for realization. However, it has some serious drawbacks. The most important one lies in its low concentration in the TF plane, when highly nonstationary signals are analyzed. In order to improve TF representation, various quadratic distributions have been introduced. The most important member of this class is the pseudo Wigner distribution (WD)
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