Exploració per tema "measurement errors"

Ara es mostren els items 1-7 de 7

    • A vector approach for noise parameter fitting and selection of source admittances 

      O'Callaghan Castellà, Juan Manuel; Mondal, J. P. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1991-08-31)
      Article
      Accés obert
      Simple vector concepts can be used in the determination of noise parameters from measured data. The use of such concepts leads to a simplification in the least-square fitting algorithm, complete determination of the ...

    • Accuracy considerations in microstrip surface impedance measurements 

      O'Callaghan Castellà, Juan Manuel; Sans, C.; Collado Gómez, Juan Carlos; Canet Grau, Eduard; Pous Andrés, Rafael; Fontcuberta, Josep (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1997-06-30)
      Article
      Accés obert
      An approach is proposed for the design, measurement and data extraction of superconducting microstrip resonators used in determination of surface resistance and penetration depth. Major sources of error are analyzed and ...

    • Compatible deformation in the condition assessment of beam structures 

      Jun, Lei; Xu, Dong; Turmo Coderque, José (International Association for Bridge and Structural Engineers (IABSE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The structural deformations should satisfy some geometric relations. However, this might not hold when the measured deformations are contaminated by measurement errors. In order to filter out the incompatibility in the ...

    • Condition assessment using structural system identification 

      Lei, Jun; Lozano Galant, José Antonio; Nogal Macho, María; Xu, Dong; Turmo Coderque, José (Tongji University, 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The accumulation of progressive deterioration of structures might lead to the failure of structures. In order to avoid potential accidents, it is important to carry out condition assessment using structural system ...

    • Error analysis of structural system identification by observability method 

      Lei, Jun; Xu, Dong; Lozano Galant, José Antonio; Nogal Macho, María; Turmo Coderque, José (International Association for Bridge and Structural Engineers (IABSE), 2017)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      In structural system identification, measurement errors and simulation errors are closely related with the accuracy of the identification method. In this paper, the effects of these two types of errors on structural system ...

    • New Theoretical Analysis of the LRRM Calibration Technique for Vector Network Analyzers 

      Purroy Martín, Francesc; Pradell i Cara, Lluís (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2001-10-31)
      Article
      Accés obert
      In this paper, a new theoretical analysis of the four-standards line-reflect-reflect-match (LRRM) vector network-analyzer (VNA) calibration technique is presented. As a result, it is shown that the reference-impedance (to ...

    • Static structural system identification for beam-like structures using compatibility conditions 

      Lei, Jun; Xu, Dong; Turmo Coderque, José (2018-01)
      Article
      Accés obert
      Due to the inevitable noise existing in the measured responses, structural system identification is often a challenging task in terms of the accuracy of the estimations. Structural system identification by the observability ...