DOPPLER SPECTROGRAM CALCULATION USING CFFT ALGORITHM IN A DIGITAL SIGNAL PROCESSOR BASED SYSTEM

被引：1

作者：

Balasubramaniam, D. ^{[1
]}

Nedumaran, D. ^{[1
]}

机构：

[1] Univ Madras, Cent Instrumentat & Serv Lab, Guindy Campus, Madras 600025, Tamil Nadu, India

来源：

2009 THIRD ASIA INTERNATIONAL CONFERENCE ON MODELLING & SIMULATION, VOLS 1 AND 2 | 2009年

关键词：

DUS; Spectrogram; FFT; CFFT; TMS320C6711; DSK;

D O I：

10.1109/AMS.2009.60

中图分类号：

TP31 [计算机软件];

学科分类号：

081202 ; 0835 ;

摘要：

Most of the clinical indices of blood flow are estimated from the spectrograms of Doppler ultrasound (DUS) signals. Any noise may degrade the readabiliry of the spectrogram and the precision of the clinical indices, so the spectral augmentation plays an important role in the calculation of DUS spectrum. The proposed design employed Complex Fast Fourier Transform (CFFT), in a Digital Signal Processor (DSP) (TMS320C6711 DSK) based biomedical signal processing system, which results in reduction of computational time as well as processing time, since conventional methods involve FFT and Hilbert Transform techniques. Also, this system has been designed as open research platform, which can be programmable with a variety of novel algorithms like Gabor and Wavelet techniques for studying improved and resolved spectrograms to obtain accurate diagnostic details in the future.

引用

页码：341 / +

页数：3

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