首页   按字顺浏览 期刊浏览 卷期浏览 Measurement of the elevation angles of arrival of multicomponent h.f. skywaves
Measurement of the elevation angles of arrival of multicomponent h.f. skywaves

 

作者: R.H.Clarke,   D.V.Tibble,  

 

期刊: Proceedings of the Institution of Electrical Engineers  (IET Available online 1978)
卷期: Volume 125, issue 1  

页码: 17-24

 

年代: 1978

 

DOI:10.1049/piee.1978.0005

 

出版商: IEE

 

数据来源: IET

 

摘要:

Various techniques for the measurement of elevation angles of arrival of oblique-incidence ionospherically propagated h.f. transmissions using a vertical stack of aerials are reviewed. These include single-mode and two-mode analyses, various wavefront analysis methods and Fourier and maximum-entropy spectral analyses. The methods have been applied to experimental data, and although none is completely successful, the spectral analysis methods generally provided the most realistic solutions. An unexpected result is the finding that both sporadic-E and F modes frequently comprise multiple components with different Doppler frequency shifts and arrival angles.

 

点击下载:  PDF (1172KB)



返 回