Time Variant Thresholds-Automatic Adjustment When Filtering Signals in MR Tomography

摘要：

Removing noise from an FID signal (a signal deffected in MR measurement) is of fundamental significance in the analysis of results of NMR spectroscopy and tomography. Optimum solution can be seen in removing noise by means of a digital filter bank that uses halfband mirror frequency filters of the type of low-pass and high-pass filters. A filtering method using digital filters and the approach of automatic threshold adjustment is described in the paper.

作者: E. Gescheidtova R. Kubasek Z. Smekal K. Bartusek

作者单位: Faculty of Electrical Engineering and Communication, Brno University of Technology, Czech Republic Institute of Scientific Instruments, Academy of Sciences of the Czech Republic, Czech Republic

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)

会议地点: 北京

会议语种:英文

页码: 777-781

在线出版日期: 2007-03-26（万方平台首次上网日期，不代表论文的发表时间）