- 作者: 黃胤年
- 作者服務機構: 交通部電信研究所
- 中文摘要: 本文利用數位濾波技術證明太陽黑子數與電離層全電子密度間有相當密切的準二年週期變化。電離層吸收及臨界頻率f0F2亦有相似的準二年週期變化。
- 英文摘要: A digital filtering technique was used to demonstrate the existence of the highly correlated quasi-biennial variations in the observed sunspot number and the ionospheric total electron content. Similar variations were also found for the ionospheric absorption and the critical frequency of the F2 layer.
- 中文關鍵字: --
- 英文關鍵字: --