Radio Science


Special Issue of the 2010 Asia-Pacific Radio Science Conference

Asia-Pacific Radio Science Conference 2010

    1. You have free access to this content
      Improvement of equatorial density distribution of the global core plasma model using GPS-derived TEC

      Y. Goto, Y. Kasahara and T. Ide

      Article first published online: 16 MAR 2012 | DOI: 10.1029/2011RS004763

      Key Points

      • Statistical accuracy of the global core plasma model is examined
      • A remarkable feature in bias errors in the GCPM-derived TEC is revealed
      • Altitude distribution of the GCPM error is examined in the equatorial region
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      Estimation of the strike angle of an empty tunnel in different rocks using a cross-borehole pulse radar

      Sang-Wook Kim and Se-Yun Kim

      Article first published online: 13 JAN 2012 | DOI: 10.1029/2011RS004741

      Key Points

      • Extension of geophysic paper published in 2010
      • Penetration angle estimation of a tunnel by short pulse cross-borehole radar
      • Effect of background rock on the tunnel penetration angle
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      Observation of planetary radio emissions using large arrays

      J.-M. Grießmeier, P. Zarka and J. N. Girard

      Article first published online: 14 DEC 2011 | DOI: 10.1029/2011RS004752

      Key Points

      • Good instruments are available for ground-based planetary radio studies
      • LOFAR can be expected to bring considerable advances to planetary radio science
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      Five-band microwave radiometer system for noninvasive brain temperature measurement in newborn babies: Phantom experiment and confidence interval

      T. Sugiura, H. Hirata, J. W. Hand, J. M. J. Van Leeuwen and S. Mizushina

      Article first published online: 19 NOV 2011 | DOI: 10.1029/2011RS004736

      Key Points

      • Precision was 0.7°C and accuracy was about 2°C
      • Phantom experiment of a five-band microwave radiometer system
      • Microwave radiometer for noninvasive temperature monitoring of brain
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      Calibratability and its impact on configuration design for the LOFAR and SKA phased array radio telescopes

      S. J. Wijnholds, J. D. Bregman and A. van Ardenne

      Article first published online: 8 NOV 2011 | DOI: 10.1029/2011RS004733

      Key Points

      • Definition of calibratability of radio telescope arrays
      • Derivation of antenna array requirements based on calibratability
      • Impact of calibratability on design of LOFAR and SKA aperture arrays
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      A study on characteristics of EM radiation from stripline structure

      Yoshiki Kayano and Hiroshi Inoue

      Article first published online: 29 OCT 2011 | DOI: 10.1029/2011RS004735

      Key Points

      • EM radiation from a stripline structure with a ground thin wire is studied
      • The frequency response of EM radiation can be identified by the circuit model
      • The circuit model can be used to develop physical insights and design guideline
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      Numerical validations of neural-network-based ionospheric tomography for disturbed ionospheric conditions and sparse data

      S. Hirooka, K. Hattori and T. Takeda

      Article first published online: 25 OCT 2011 | DOI: 10.1029/2011RS004760

      Key Points

      • Validation of neural-network-based tomography
      • Improvement of reconstruction accuracy
      • Reconstruction of disturbed ionosphere and sparse data
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      Validation of emission measurement site above 1 GHz

      Toshihide Tosaka and Yukio Yamanaka

      Article first published online: 22 SEP 2011 | DOI: 10.1029/2011RS004728

      Key Points

      • Validation of emission measurement site above 1 GHz
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      A locally one-dimensional finite difference time domain method for the analysis of a periodic structure at oblique incidence

      Y. Wakabayashi, J. Shibayama, J. Yamauchi and H. Nakano

      Article first published online: 9 SEP 2011 | DOI: 10.1029/2011RS004730

      Key Points

      • A periodic LOD-FDTD method is developed for the analysis at oblique incidence
      • The dispersion control parameters are introduced to reduce the dispersion error
      • The computational time is reduced to ∼16% of that of the explicit FDTD method
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      A newly developed UHF radiotelescope for interplanetary scintillation observations: Solar Wind Imaging Facility

      M. Tokumaru, M. Kojima, K. Fujiki, K. Maruyama, Y. Maruyama, H. Ito and T. Iju

      Article first published online: 25 AUG 2011 | DOI: 10.1029/2011RS004694

      Key Points

      • A UHF radiotelescope dedicated to interplanetary scintillation observations
      • A unique design of the radiotelescope
      • A high sensitivity for radio astronomical observations

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