Skip to main content

7 Result(s)

within Lung-Chih Tsai Remove this filter

and

  1. No Access

    Article

    Coastal sea-surface wave measurements using software-based GPS reflectometers in Lanyu, Taiwan

    A low-cost transportable software-based global positioning system reflectometry (GPS-R) scheme, which can measure sea-surface wave frequency, period, and speed, is proposed and described. We designed and imple...

    Lung-Chih Tsai, Shin-Yi Su, Hwa Chien, Chao-Han Liu, Harald Schuh… in GPS Solutions (2021)

  2. Article

    Open Access

    Global morphology of ionospheric sporadic E layer from the FormoSat-3/COSMIC GPS radio occultation experiment

    Ionospheric sporadic-E (Es) activity and global morphology were studied using the 50 Hz signal-to-noise ratio amplitude and excess phase measurements from the FormoSat-3/Constellation Observing System for Mete...

    Lung-Chih Tsai, Shin-Yi Su, Chao-Han Liu, Harald Schuh, Jens Wickert… in GPS Solutions (2018)

    Download PDF (9392 KB) View Article

  3. No Access

    Article

    Global morphology of ionospheric F-layer scintillations using FS3/COSMIC GPS radio occultation data

    We report on the FormoSat-3/Constellation Observing System for Meteorology, Ionosphere and Climate (FS3/COSMIC) limb-viewing observations of GPS L-band scintillations since mid-2006 and propose to study global...

    Lung-Chih Tsai, Shin-Yi Su, Chao-Han Liu in GPS Solutions (2017)

  4. Article

    Open Access

    The fast development of solar terrestrial sciences in Taiwan

    In Taiwan, research and education of solar terrestrial sciences began with a ground-based ionosonde operated by Ministry of Communications in 1952 and courses of ionospheric physics and space physics offered b...

    Jann-Yenq Liu, Loren Chee-Wei Chang, Chi-Kuang Chao, Ming-Quey Chen… in Geoscience Letters (2016)

    Download PDF (4245 KB) View Article

  5. No Access

    Article

    Performance evaluation of different ionospheric models in single-frequency code-based differential GPS positioning

    Differential ionospheric slant delays are obtained from a quiet-time, three-dimensional ionospheric electron density model, called the TaiWan Ionosphere Model (TWIM), to be used in code-based differential GPS...

    Ernest Pagaran Macalalad, Lung-Chih Tsai, Joz Wu in GPS Solutions (2016)

  6. No Access

    Article

    Application of the TaiWan Ionospheric Model to single-frequency ionospheric delay corrections for GPS positioning

    The performance of a three-dimensional ionospheric electron density model derived from FormoSat3/COSMIC GPS Radio Occultation measurements, called the TaiWan Ionosphere Model (TWIM), in removing the ionospheri...

    Ernest Pagaran Macalalad, Lung-Chih Tsai, Joz Wu, Chao-Han Liu in GPS Solutions (2013)

  7. Article

    Open Access

    A comparison of a model using the FORMOSAT-3/COSMIC data with the IRI model

    In this study, an empirical model constructed using data of FORMOSAT3/COSMIC (F3/C) from 29 June, 2006, to 17 October, 2009, retrieves altitude profiles of electron density (Ne). The model derives global Ne profi...

    Yoshihiro Kakinami, Jann-Yenq Liu, Lung-Chih Tsai in Earth, Planets and Space (2012)

    Download PDF (883 KB) View Article