Accession Number:

ADA265099

Title:

Radiolocation Techniques (Les Techniques de Radiolocalisation). Papers Presented at the Electromagnetic Wave Propagation Panel Symposium Held in London, England on 1-5 Jun 92

Descriptive Note:

Corporate Author:

ADVISORY GROUP FOR AERONAUTICAL RESEARCH AND DEVELOPMENT PARIS (FRANCE)

Personal Author(s):

Report Date:

1992-11-01

Pagination or Media Count:

347.0

Abstract:

Modern defence systems must have a comprehensive surveillance capability. A key component of a surveillance system is the ability to detect and to locate radio signals. Requirements are both for global surveillance and for local areas in situations of rapid deployment of forces. The entire radio spectrum is of interest long wave radio waves radio waves are used for strategic communications the HF band remains one of the important frequency regions used by large and small countries for global and regional communications the frequency range above 50 MHz through to the millimeter wave region is extensively used for both communications and surveillance purposes. Effects of the propagation medium play an important role in applying location techniques. For HF frequencies and below, the primary medium is the ionosphere for higher frequencies important environmental effects are due to atmospheric refraction. In the entire radio band booth natural and man-made noise including jamming often play an important role in direction finding and location applications. Radiolocation techniques are concerned with the angle of arrival of a signal and location of an emitter

Subject Categories:

  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE