scholarly journals A new technique for absolute total electron content determination using the CITRIS instrument on STPSat1 and the CERTO beacons on COSMIC

Radio Science ◽  
2010 ◽  
Vol 45 (3) ◽  
pp. n/a-n/a ◽  
Author(s):  
Paul A. Bernhardt ◽  
Carl L. Siefring ◽  
Ivan J. Galysh ◽  
Douglas E. Koch
Keyword(s):  
Total Electron Content ◽  
New Technique ◽  
Electron Content ◽  
Total Electron ◽  
Content Determination ◽  
A New Technique

scholarly journals A new technique for mapping of total electron content using GPS network in Japan

2002 ◽  
Vol 54 (1) ◽  
pp. 63-70 ◽  
Author(s):  
Y. Otsuka ◽  
T. Ogawa ◽  
A. Saito ◽  
T. Tsugawa ◽  
S. Fukao ◽  
...  
Keyword(s):  
Total Electron Content ◽  
New Technique ◽  
Electron Content ◽  
Total Electron ◽  
Gps Network ◽  
A New Technique

scholarly journals Double-thin-shell approach to deriving total electron content from GNSS signals and implications for ionospheric dynamics near the magnetic equator

2021 ◽  
Vol 73 (1) ◽  
Author(s):  
Takashi Maruyama ◽  
Kornyanat Hozumi ◽  
Guanyi Ma ◽  
Pornchai Supnithi ◽  
Napat Tongkasem ◽  
...  
Keyword(s):  
Total Electron Content ◽  
Thin Shell ◽  
Spherical Surface ◽  
Satellite System ◽  
Electron Content ◽  
Equatorial Anomaly ◽  
Total Electron ◽  
Functional Fitting ◽  
A New Technique ◽  
Global Navigation Satellite

AbstractA new technique was developed to estimate the ionospheric total electron content (TEC) from Global Navigation Satellite System (GNSS) satellite signals. The vertically distributed electron density was parameterized by two thin-shell layers (double-shell approach). The spatiotemporal variation of TEC (strictly speaking, partial electron content) associated with each shell was approximated by the functional fitting of spherical surface harmonics. The major improvements over the conventional single-shell approach were as follows: (1) the precise estimation of TEC was achieved; (2) the estimated TEC was less dependent on the choice of shell heights; and (3) the equatorial anomaly was captured more correctly. Furthermore, higher and lower shells exhibited a different pattern of local time vs latitude variation, providing information on the ionosphere–thermosphere dynamics.

scholarly journals Estimating the absolute total electron content based on single-frequency satellite radio navigation GPS/GLONASS data

2017 ◽  
Vol 3 (1) ◽  
pp. 97-103
Author(s):  
Юрий Ясюкевич ◽  
Yury Yasyukevich ◽  
Анна Мыльникова ◽  
Anna Mylnikova ◽  
Всеволод Иванов ◽  
...  
Keyword(s):  
Total Electron Content ◽  
Single Frequency ◽  
Electron Content ◽  
Dual Frequency ◽  
Total Electron ◽  
Radio Navigation ◽  
The Absolute ◽  
The Difference ◽  
A New Technique ◽  
Slant Total Electron Content

We present a new technique for estimating the absolute vertical and slant total electron content (TEC). The estimation is based on single-frequency joint phase and pseudorange GPS/GLONASS measurements at single stations. Estimated single-frequency vertical TEC agrees qualitatively and quantitatively with the dual-frequency vertical TEC. For analyzed stations a typical value of the difference between the single-frequency vertical TEC and dual-frequency ones generally does not exceed ~1.5 TECU with RMS up to ~3 TECU.

scholarly journals Estimating the absolute total electron content based on single-frequency satellite radio navigation GPS/GLONASS data

2017 ◽  
Vol 3 (1) ◽  
pp. 128-137 ◽  
Author(s):  
Юрий Ясюкевич ◽  
Yury Yasyukevich ◽  
Анна Мыльникова ◽  
Anna Mylnikova ◽  
Всеволод Иванов ◽  
...  
Keyword(s):  
Total Electron Content ◽  
Single Frequency ◽  
Electron Content ◽  
Dual Frequency ◽  
Total Electron ◽  
Radio Navigation ◽  
The Absolute ◽  
The Difference ◽  
A New Technique ◽  
Slant Total Electron Content

We present a new technique for estimating the absolute vertical and slant total electron content (TEC). The estimation is based on single-frequency joint phase and pseudorange GPS/GLONASS measurements at single stations. Estimated single-frequency vertical TEC agrees qualitatively and quantitatively with the dual-frequency vertical TEC. For analyzed stations a typical value of the difference between the single-frequency vertical TEC and dual-frequency ones generally does not exceed ~1.5 TECU with RMS up to ~3 TECU.

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