Fast tropospheric delay predictions for antenna height diversity

Author

Christopher, Paul

Author_Institution

Stanford Telecommun. Inc., Reston, VA, USA

Volume

45

Issue

5

fYear

1997

fDate

5/1/1997 12:00:00 AM

Firstpage

519

Lastpage

522

Abstract

Terrestrial microwave links sometimes suffer from signal fading which may be relieved with antenna diversity or frequency diversity. Vertical spacing of the antennas has been known empirically to offer performance gains for many links. A fast new method for tropospheric delay predictions is discussed. It uses Mathematica for critical functional fits to refractivity profiles, and a critical closed-form integration. A practical antenna diversity example is shown, with reference to Sylvain (see ibid., vol.43, no.7, p.2271, 1995)

Keywords

delays; diversity reception; electrical engineering; electrical engineering computing; electromagnetic wave refraction; fading; microwave antennas; microwave links; microwave propagation; tropospheric electromagnetic wave propagation; Mathematica; antenna height diversity; critical closed-form integration; critical functional fits; fast tropospheric delay predictions; performance gains; refractivity profiles; signal fading; terrestrial microwave links; vertical spacing; Delay effects; Fading; Frequency diversity; Global Positioning System; Microwave antennas; Performance gain; Probability density function; Propagation delay; Radar antennas; Refractive index;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.592549

Filename

592549