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Memorias de investigación
Ponencias en congresos:
Self-adaptive sampling rate data acquisition in JET’s correlation reflectometer
Año:2008
Áreas de investigación
  • Electrónica
Datos
Descripción
Data acquisition systems with self-adaptive sampling rate capabilities have been proposed as a solution to reduce the shear amount of data collected in every discharge of present fusion devices. This paper discusses the design of such a system for its use in the KG8B correlation reflectometer at JET. The system, which is based on the ITMS platform, continuously adapts the sample rate during the acquisition depending on the signal bandwidth. Data are acquired continuously at the expected maximum sample rate and transferred to a memory buffer in the host processor. Thereafter the rest of the process is based on software. Data are read from the memory buffer in blocks and for each block an intelligent decimation algorithm is applied. The decimation algorithm determines the signal bandwidth for each block in order to choose the optimum sample rate for that block, and from there the decimation factor to be used. Memory buffers are used to adapt the throughput of the three main software modules (data acquisition, processing, and storage) following a typical producer-consumer architecture. The system optimizes the amount of data collected while maintaining the same information. Design issues are discussed and results of performance evaluation are presented.
Internacional
Si
Nombre congreso
17th Topical Conference on High-Temperature Plasma Diagnostics
Tipo de participación
960
Lugar del congreso
Albuquerque, New Mexico
Revisores
Si
ISBN o ISSN
0883185636
DOI
Fecha inicio congreso
11/05/2008
Fecha fin congreso
15/05/2008
Desde la página
0
Hasta la página
0
Título de las actas
REVIEW OF SCIENTIFIC INSTRUMENTS
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: ANTONIO FONSECA (Associação EURATOM / IST, Instituto de Plasmas e Fusão Nuclear)
  • Autor: JESÚS VEGA (Asociación EURATOM/CIEMAT para Fusión.)
  • Autor: Guillermo de Arcas Castro (UPM)
  • Autor: Mariano Ruiz Gonzalez (UPM)
  • Autor: JET-EFDA Contributors (Grupo)
  • Autor: Eduardo Barrera Lopez de Turiso (UPM)
  • Autor: Andrea Murari (Consorzio RFX – Associazione EURATOM ENEA per la Fusione)
  • Autor: Juan Manuel Lopez Navarro (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Investigación en Instrumentación y Acústica Aplicada (I2A2)
  • Departamento: Sistemas Electrónicos y de Control
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