Three-dimensional numerical ray tracing on a phenomenological ionospheric model

NCU Institutional Repository > 地球科學學院 > 太空科學研究所 > 期刊論文 > Item 987654321/50416

請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/50416

題名:	Three-dimensional numerical ray tracing on a phenomenological ionospheric model
作者:	Tsai,LC;Liu,CH;Huang,JY
貢獻者:	太空科學研究所
關鍵詞:	HF
日期:	2010
上傳時間:	2012-03-27 17:31:15 (UTC+8)
出版者:	國立中央大學
摘要:	In this paper we present a numerical and step by step ray-tracing method on a phenomenological ionospheric electron density (N(e)) model, the TaiWan Ionospheric Model (TWIM), which is constructed from the FormoSat3/Constellation Observing System for Meteorology, Ionosphere and Climate (FS3/COSMIC) ionospheric radio occultation data. With the Earth's magnetic field and horizontal N(e) gradient effects included, efficient methods for calculating ray parameters such as the ground range, reflection height, phase path, and group path are presented. The three-dimensional TWIM consists of vertically fitted alpha-Chapman-type layers, with distinct F2, F1, E, and D layers, for which the layer parameters such as peak density, peak density height, and scale height are represented by surface spherical harmonics. This way the continuity of N(e) and its derivatives is maintained. This is important for practical schemes for providing reliable radio propagation predictions. The methodology is successfully applied to a practical high-frequency transmitter for oblique incidence ray tracing and further evaluated by comparing synthetic vertical ionograms generated by the method with experimental ionosonde observations.
關聯:	RADIO SCIENCE
顯示於類別:	[太空科學研究所 ] 期刊論文

文件中的檔案:

檔案	描述	大小	格式	瀏覽次數
index.html		0Kb	HTML	348	檢視/開啟

在NCUIR中所有的資料項目都受到原著作權保護.

社群 sharing

資料載入中.....