Adaptive cancellation of harmonic interferences in transcranial Doppler signal

被引：0
|
作者：
Zabolotny, WM [1 ]
Karlowicz, P [1 ]
Jurkiewicz, J [1 ]
机构：
[1] Warsaw Univ Technol, Inst Elect Syst, PL-00665 Warsaw, Poland
来源：
PHOTONICS APPLICATIONS IN ASTRONOMY, COMMUNICATIONS, INDUSTRY, AND HIGH-ENERGY PHYSICS EXPERIMENTS II | 2004年 / 5484卷
关键词：
transcranial Doppler; medical diagnostics; ultrasound; adaptive interference cancellation; adaptive filters; LMS algorithm;
D O I：
10.1117/12.568907
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper presents a method of improving the Transcranial Doppler (TCD) signal by removing harmonic interferences. Such interferences, originating from medical equipment using the high power HF signals are common in a clinical environment, especially in the neighborhood of the operating theater. The Adaptive Interference Canceler based on the NLMS FIR filter has been used. The reference signal was obtained by delaying of the original TCD signal. The presented method allows significant improvement of a seriously disturbed TCD signal.
引用
收藏
页码：486 / 492
页数：7
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