Helen Na - researchr alias

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Viewing Publication 1 - 16 from 16

1998

Time-varying reconstruction of the ionosphere. 2. Data source analysisEric Sutton, Helen Na. imst, 9(6):491-499, 1998. [doi]

Time-varying reconstruction of the ionosphere. 1. The algorithmEric Sutton, Helen Na. imst, 9(6):484-490, 1998. [doi]

1997

Limited Angle Tomography Using Volumetric ConstraintsChaitali Biswas, Helen Na. icip 1997: 488-491 [doi]

1996

Static tomographic reconstruction of the time varying ionosphereEric Sutton, Helen Na. icip 1996: 523-526 [doi]

A block iterative algorithm for tomographic reconstruction of ionospheric electron densityEric Sutton, Helen Na. imst, 7(3):238-245, 1996. [doi]

1995

Measures of information content for computerized ionospheric tomographyB. Hall, Helen Na. icip 1995: 2433-2436 [doi]

A new iterative algorithm for ionospheric tomographyEric Sutton, Helen Na. icip 1995: 2437-2440 [doi]

1994

A Space-Frequency Algorithm for Limited Anlge TomographyHelen Na, Chaitali Biswas. icip 1994: 815-819

Resolution analysis of ionospheric tomography systemsHelen Na, Eric Sutton. imst, 5(2):169-173, 1994. [doi]

High Resolution Ionospheric Tomography Through Orthogonal DecompositionEric Sutton, Helen Na. icip 1994: 148-152

Orthogonal decomposition framework for ionospheric tomography algorithmsEric Sutton, Helen Na. imst, 5(2):106-111, 1994. [doi]

1992

Analysis of fundamental resolution limit of ionospheric tomographyHelen Na, Hua Lee. icassp 1992: 97-100 [doi]

1991

Orthogonal decomposition technique for ionospheric tomographyHelen Na, Hua Lee. imst, 3(4):354-365, 1991. [doi]

Fundamental analysis of the tomographic imaging system for reconstructing ionospheric distributionsHelen Na. PhD thesis, University of Illinois Urbana-Champaign, USA, 1991. [doi]

1990

Resolution analysis of tomographic reconstruction of electron density profiles in the IonosphereHelen Na, Hua Lee. imst, 2(3):209-218, 1990. [doi]

1988

Neural net based pattern recognition on the graph search machineHelen Na, Stephen C. Glinski. icassp 1988: 2168-2171 [doi]

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