Zobrazeno 1 - 10
of 146
pro vyhledávání: '"Yen-Hsyang Chu"'
Publikováno v:
Atmosphere, Vol 14, Iss 6, p 987 (2023)
On the basis of interferometry measurement made with the Chung-Li VHF radar, we investigated the effects of upward propagating gravity waves on the spatial structures and dynamic behavior of the 3 m field-aligned irregularities (FAIs) of the sporadic
Externí odkaz:
https://doaj.org/article/a7e8e0f2fd71432daab806c98b483be0
Publikováno v:
Remote Sensing, Vol 15, Iss 8, p 2169 (2023)
In this paper, we compare the performances of radio frequency interference (RFI) suppression between radio frequency interference mitigation (RFIM) and frequency-domain adaptive clutter suppression (FACS) algorithms that apply to ionograms for foF2 s
Externí odkaz:
https://doaj.org/article/17d7b5142a7d4b5d991812101138e2ab
Publikováno v:
Terrestrial, Atmospheric and Oceanic Sciences, Vol 30, Iss 6, Pp 803-820 (2019)
The phase imbalance between receiving channels of a phase array antenna, referred to as phase offset, is one of the most crucial parameters in positioning the targets in lower and upper atmospheres using spatial domain interferometry (SDI) technique.
Externí odkaz:
https://doaj.org/article/c8e5f2632f994573ac0659e7e98a08d1
Autor:
Kai-Jun Ke, Ching-Lun Su, Ruey-Ming Kuong, Hsyang-Chan Chen, Hung-Shi Lin, Po-Hsun Chiu, Ching-Yuan Ko, Yen-Hsyang Chu
Publikováno v:
Remote Sensing, Vol 14, Iss 8, p 1913 (2022)
In spite of being interrupted several times in its long history of operation since 1950, the routine observation of the ionosphere with various ionosondes installed at the Chung-Li ionosphere station in Taiwan has been achieved successively for more
Externí odkaz:
https://doaj.org/article/b722a6f7711d489aab7622622adbd04a
Publikováno v:
Atmosphere, Vol 13, Iss 4, p 557 (2022)
Two approaches were designed to identify the echoes of clear air and precipitation when both coexist in the very-high-frequency (VHF) radar spectra: contour-based and peak-finding methods. The contour-based approach was used to model a 2D Doppler spe
Externí odkaz:
https://doaj.org/article/ab200da090384f10ad775402c7e5d434
Publikováno v:
Remote Sensing, Vol 14, Iss 3, p 611 (2022)
Multireceiver and multifrequency radar imaging were carried out with the 46.5 MHz MU radar in Japan (34.85°N and 136.10°E) to examine the aspect sensitivity of field-aligned plasma irregularities (FAIs) in the mid-latitude ionosphere E region. A ra
Externí odkaz:
https://doaj.org/article/d87606eedfa24863a74685c042c8f8b6
Publikováno v:
Atmosphere, Vol 12, Iss 10, p 1284 (2021)
Concurrent measurements of three-dimensional wind velocities made with three co-located wind profilers operated at frequencies of 52 MHz, 449 MHz, and 1.29 GHz for the period 12–16 September 2017 are compared for the first time in this study. The v
Externí odkaz:
https://doaj.org/article/cc1283fe31d94dce9235f08d5a328121
Publikováno v:
International Journal of Antennas and Propagation, Vol 2017 (2017)
It is well known that the primary targets responsible for first-order sea echoes observed by a High-Frequency (HF) radar are the advancing and receding ocean waves with the wavelengths at Bragg scales. However, in light of the fact that the ionospher
Externí odkaz:
https://doaj.org/article/57657511ccc0406b802c02381c0022f0
Autor:
Zai-Wun Lin, Chi-Kuang Chao, Jann-Yenq Liu, Chien-Ming Huang, Yen-Hsyang Chu, Ching-Lun Su, Ya-Chih Mao, Yeou-Shin Chang
Publikováno v:
Terrestrial, Atmospheric and Oceanic Sciences, Vol 28, Iss 2, p 099 (2017)
Advanced Ionospheric Probe (AIP) is a piggyback science payload developed by National Central University for FORMOSAT-5 satellite to explore space weather/climate and seismic precursors associated with strong earthquakes. The AIP is an all-in-one pla
Externí odkaz:
https://doaj.org/article/768233b3ed404c318d156c4b2128fa37
Publikováno v:
Terrestrial, Atmospheric and Oceanic Sciences, Vol 23, Iss 3, p 333 (2012)
One ion trap (IT) and one retarding potential analyzer (RPA) onboard the Taiwan Sounding Rocket V (SR-V) were launched to measure ionospheric plasma irregularities on 18 January 2006. After the fairing separated, voltage readings (VG1) of the first g
Externí odkaz:
https://doaj.org/article/3abcb4df912d46c8bea07c0d2c83a4ed