Publication detail

Filter for Processing of NMR Signal

FRIEDL, M. FROHLICH, L. SEDLÁČEK, J.

Original Title

Filter for Processing of NMR Signal

English Title

Filter for Processing of NMR Signal

Type

journal article - other

Language

en

Original Abstract

The paper deals with the design of low-pass filter with lossy FNDR element. The purpose of the using the filter is as anti-aliasing filter in NMR spectrometer signal path. Signal of resonant nucleus detected by probe can be expected at uV level. Low noise preamplifier will increase the level of NMR signal before mixer. The mixer bring useful signal to base band. Inter frequency signal required to be filtered by low-pass filter with appropriate order. There is possible to use Bessel or Butterworth approximation. Filter has to have low noise parameters. In general, noise parameters are the most signifcant in all signal path design.

English abstract

The paper deals with the design of low-pass filter with lossy FNDR element. The purpose of the using the filter is as anti-aliasing filter in NMR spectrometer signal path. Signal of resonant nucleus detected by probe can be expected at uV level. Low noise preamplifier will increase the level of NMR signal before mixer. The mixer bring useful signal to base band. Inter frequency signal required to be filtered by low-pass filter with appropriate order. There is possible to use Bessel or Butterworth approximation. Filter has to have low noise parameters. In general, noise parameters are the most signifcant in all signal path design.

Keywords

NMR filter, FDNR, lossy block

RIV year

2011

Released

22.09.2011

Pages from

1004

Pages to

1007

Pages count

4

BibTex


@article{BUT75506,
  author="Martin {Friedl} and Lubomír {Fröhlich} and Jiří {Sedláček}",
  title="Filter for Processing of NMR Signal",
  annote="The paper deals with the design of low-pass filter with lossy FNDR element. The purpose of the using the filter is as anti-aliasing filter in NMR spectrometer signal path. Signal of resonant nucleus detected by probe can be expected at uV level. Low noise preamplifier will increase the level of NMR signal before mixer. The mixer bring useful signal to base band. Inter frequency signal required to be filtered by low-pass filter with appropriate order. There is possible to use Bessel or Butterworth approximation. Filter has to have low noise parameters. In general, noise parameters are the most signifcant in all signal path design.",
  chapter="75506",
  number="2011",
  volume="2011",
  year="2011",
  month="september",
  pages="1004--1007",
  type="journal article - other"
}