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Using the discrete Gabor expansion for the Doppler ultrasound signal processing
S Ghofrani1, A Ayatollahi, M B Shamsollahi
1Electrical Engineering Department, Iran University of Science & Technology, Islamic Azad University, Tehran South Unit, Tehran, Iran. s_ghofrani@iust.ac.ir
Biomedical Sciences Instrumentation
|May 3, 2003
Abstract:
In this paper we have synthesized the Doppler signal with a known time varying mean frequency, then used the orthogonal-like Discrete Gabor Transform (DGT) and the spectrogram for analyzing the signal. Mean square error has been computed for each method respectively and at last we have analyzed the real clinical signal too.