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@ARTICLE{Divin:154254,
      author       = {Divin, Yuri and Pandya, H. K. B.},
      title        = {{F}easibility of {ECE} measurements using
                      {H}ilbert-transform spectral analysis},
      journal      = {Fusion science and technology},
      volume       = {65},
      issn         = {0748-1896},
      address      = {La Grange Park, Ill.},
      publisher    = {American Nuclear Society},
      reportid     = {FZJ-2014-03630},
      pages        = {399-405 3},
      year         = {2014},
      abstract     = {Electron cyclotron emission (ECE) from hot tokamak plasmas
                      is recognized nowadays as a very informative diagnostic of
                      main plasma parameters. Among several instruments developed
                      to measure ECE, only a Martin-Puplett interferometer
                      operates in a broadband frequency range of ECE from 70 to
                      1000 GHz. To derive the absolute radiation temperature of
                      the plasma, a total measurement system, including front-end
                      radiation collection, a transmission line, and the
                      interferometer, is calibrated using a hot/cold calibration
                      source. It takes a long time to calibrate the ECE system
                      because of the high values of the noise equivalent power
                      (NEP). A new technique, Hilbert-transform spectral analysis,
                      is proposed for ITER plasma ECE spectral measurements. The
                      operation principle, characteristics, and advantages of the
                      corresponding Hilbert-transform spectrum analyzer (HTSA)
                      based on a high-Tc Josephson detector are described. Because
                      of the lower NEP values of the Josephson detector, this
                      spectrum analyzer might demonstrate shorter calibration
                      times than those for the Martin-Puplett interferometer.
                      Because of a principal difference between Fourier and
                      Hilbert transforms, the HTSA might have an additional
                      advantage in retrieving harmonic ECE radiation from a
                      continuous thermal background.},
      cin          = {PGI-5},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-5-20110106},
      pnm          = {423 - Sensorics and bioinspired systems (POF2-423)},
      pid          = {G:(DE-HGF)POF2-423},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000336947200007},
      url          = {https://juser.fz-juelich.de/record/154254},
}