Detail publikace

Universal Filters for Processing of NMR Signals

Originální název

Universal Filters for Processing of NMR Signals

Anglický název

Universal Filters for Processing of NMR Signals

Jazyk

en

Originální abstrakt

Abstract|An analysis of the parameters and usage of universal fiters in NMR area can be very interesting. In certain cases, there are situations when it is not possible to use standard filters, mainly because of requirements for tuning complete filter or using higher amount of transfer functions, which can be LP, HP, BP, BR but also LPN or HPN and AP. For this purpose, there can be used the universal filters which usually contain three and more OAs. One of these filter types are Akerberg-Mossberg or Kerwin-Huelsman-Newcomb circuits. To be able to use their universality, it is necessary to realize suitable digital processing of their basic parameters of the set filter. These parameters are mainly resonant frequency, quality factor and transfer factor. For processing or tunning of filters it is possible to use digital potentiometers, digitally controlled switchers or other modern active blocks. This article deals with the usage of these filters by control of their parameters with the help of microprocessor.

Anglický abstrakt

Abstract|An analysis of the parameters and usage of universal fiters in NMR area can be very interesting. In certain cases, there are situations when it is not possible to use standard filters, mainly because of requirements for tuning complete filter or using higher amount of transfer functions, which can be LP, HP, BP, BR but also LPN or HPN and AP. For this purpose, there can be used the universal filters which usually contain three and more OAs. One of these filter types are Akerberg-Mossberg or Kerwin-Huelsman-Newcomb circuits. To be able to use their universality, it is necessary to realize suitable digital processing of their basic parameters of the set filter. These parameters are mainly resonant frequency, quality factor and transfer factor. For processing or tunning of filters it is possible to use digital potentiometers, digitally controlled switchers or other modern active blocks. This article deals with the usage of these filters by control of their parameters with the help of microprocessor.

BibTex


@inproceedings{BUT93784,
  author="Lubomír {Fröhlich} and Jiří {Sedláček} and Martin {Friedl} and Radim {Kadlec}",
  title="Universal Filters for Processing of NMR Signals",
  annote="Abstract|An analysis of the parameters and usage of universal fiters in NMR area can be very interesting. In certain cases, there are situations when it is not possible to use standard filters, mainly because of requirements for tuning complete filter or using higher amount of transfer functions, which can be LP, HP, BP, BR but also LPN or HPN and AP. For this purpose, there can be used the universal filters which usually contain three and more OAs. One of these filter
types are Akerberg-Mossberg or Kerwin-Huelsman-Newcomb circuits.
To be able to use their universality, it is necessary to realize suitable digital processing of their basic parameters of the set filter. These parameters are mainly resonant frequency, quality factor and transfer factor. For processing or tunning of filters it is possible to use digital potentiometers, digitally controlled switchers or other modern active blocks.
This article deals with the usage of these filters by control of their parameters with the help of microprocessor.",
  booktitle="PIERS 2012 Moscow Proceedings",
  chapter="93784",
  howpublished="print",
  number="08",
  year="2012",
  month="august",
  pages="873--876",
  type="conference paper"
}