Name
Title | ||
|---|---|---|
Real-Time implementation of high-performance spectral estimation and display on a portable doppler device |
Abstract | ||
|---|---|---|
In present study, the complex real-time autoregressive (AR) modeling based on the Levision-Durbin recursive algorithm and the maximum entropy spectral estimation is developed to calculate the spectrograms of Doppler blood flow signals for producing more comprehensive information about the components of the blood flow profile and increasing the display quality. A portable Doppler blood flow analysis device, which is based on a digital signal processor (DSP) TMS320VC549 (Texas Instruments) and contains a 240 * 320 LCD color graphic display module (Hantronix), has been used to implement the spectral estimation algorithm and display spectrograms on the LCD in real-time. Directional Doppler spectrograms are computed directly from the in-phase and quardrature components of the Doppler signal. The results are applied to the development of a compact, economic, versatile bi-directional and battery- or line- operated Doppler device, which can be conveniently used to perform basic vascular testing. |
Year | DOI | Venue |
|---|---|---|
2005 | 10.1007/11538356_36 | ICIC (2) |
Keywords | Field | DocType |
display spectrogram,directional doppler spectrogram,real-time implementation,lcd color,blood flow profile,graphic display module,doppler blood flow signal,portable doppler blood flow,display quality,doppler device,doppler signal,portable doppler device,high-performance spectral estimation,ar model,real time,maximum entropy,digital signal processor,recursive algorithm,blood flow,spectral estimation | Digital signal processing,Maximum entropy spectral estimation,Computer science,Digital signal processor,Artificial intelligence,Doppler effect,Autoregressive model,Computer vision,Spectral density estimation,Pattern recognition,Simulation,Spectrogram,Liquid-crystal display | Conference |
Volume | ISSN | ISBN |
3645 | 0302-9743 | 3-540-28227-0 |
Citations | PageRank | References |
0 | 0.34 | 1 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yufeng Zhang | 1 | 117 | 30.05 |
| Jianhua Chen | 2 | 32 | 9.00 |
| xinling shi | 3 | 74 | 15.34 |
| Zhenyu Guo | 4 | 512 | 39.61 |