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@ARTICLE{Czarski:389616,
      author       = {Czarski, T. and Pozniak, K. T. and Romaniuk, Ryszard S. and
                      Simrock, S.},
      title        = {{C}avity parameters identification for {TESLA} control
                      system development},
      journal      = {Nuclear instruments $\&$ methods in physics research / A},
      volume       = {548},
      number       = {3},
      issn         = {0168-9002},
      address      = {Amsterdam},
      publisher    = {North-Holland Publ. Co.},
      reportid     = {PUBDB-2017-08883, DESY-TESLA-FEL-2005-08},
      pages        = {283 - 297},
      year         = {2005},
      note         = {Beschleuniger},
      abstract     = {Aim of the control system development for TESLA cavity is a
                      more efficient stabilization of the pulsed, accelerating EM
                      field inside resonator. Cavity parameters identification is
                      an essential task for the comprehensive control algorithm.
                      TESLA cavity simulator has been successfully implemented
                      using high-speed FPGA technology. Electromechanical model of
                      the cavity resonator includes Lorentz force detuning and
                      beam loading. The parameters identification is based on the
                      electrical model of the cavity. The model is represented by
                      state space equation for envelope of the cavity voltage
                      driven by current generator and beam loading. For a given
                      model structure, the over-determined matrix equation is
                      created covering long enough measurement range with the
                      solution according to the least-squares method. A low-degree
                      polynomial approximation is applied to estimate the
                      time-varying cavity detuning during the pulse. The
                      measurement channel distortion is considered, leading to the
                      external cavity model seen by the controller. The
                      comprehensive algorithm of the cavity parameters
                      identification was implemented in the Matlab system with
                      different modes of operation. Some experimental results were
                      presented for different cavity operational conditions. The
                      following considerations have lead to the synthesis of the
                      efficient algorithm for the cavity control system predicted
                      for the potential FPGA technology implementation.},
      keywords     = {electron positron: linear collider (INSPIRE) / linear
                      collider: proposed (INSPIRE) / cavity: superconductivity
                      (INSPIRE) / niobium (INSPIRE) / cavity: control system
                      (INSPIRE) / expansion: wavelet (INSPIRE) / DESY TESLA Linac
                      (INSPIRE)},
      cin          = {DESY(-2012)},
      ddc          = {530},
      cid          = {$I:(DE-H253)DESY_-2012_-20170516$},
      pnm          = {899 - ohne Topic (POF3-899)},
      pid          = {G:(DE-HGF)POF3-899},
      experiment   = {EXP:(DE-H253)TESLA-Test-Facility-20150101},
      typ          = {PUB:(DE-HGF)29 / PUB:(DE-HGF)16},
      UT           = {WOS:000231411400001},
      doi          = {10.1016/j.nima.2005.04.005},
      url          = {https://bib-pubdb1.desy.de/record/389616},
}