RADIO CAUSTICS AND CUSPS IN IONOSPHERE

被引：17

作者：

BUDDEN, KG ^{[1
]}

机构：

[1] UNIV CAMBRIDGE,CAVENDISH LAB,CAMBRIDGE,ENGLAND

来源：

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 1976年 / 350卷 / 1661期

关键词：

RADIO TRANSMISSION - Fading;

D O I：

10.1098/rspa.1976.0100

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

When a radio signal from a point source enters the ionosphere, the field contains caustic surfaces, and these in turn contain cusp lines. In these regions there is some focusing, and this paper shows how to calculate the spatial dependence of the field. It is expressed as a double integral representing an angular spectrum of plane waves. Evaluation of the integral uses the method of double steepest descents with two complex variables.

引用

页码：143 / 164

页数：22

共 26 条

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