Accession Number : AD0742776

Title :   Direction Finding on Whistlers and Related VLF Signals.

Descriptive Note : Technical rept.,

Corporate Author : STANFORD UNIV CALIF STANFORD ELECTRONICS LABS

Personal Author(s) : Cousins,Michael D.

Report Date : MAY 1972

Pagination or Media Count : 201

Abstract : The direction of arrival of whistlers and related VLF signals has been measured by a new technique. This technique consists of applying an already existing theory (the 'four-parameter method') to data collected by a novel measurement procedure. Measurements of signals induced in orthogonal loop antennas and a vertical monopole located at a single site provide the necessary data. The four-parameter theory relates the loop and vertical voltages, taking into account both amplitudes and phases so that polarization error may be eliminated. The technique can be shown equal or superior in accuracy to any other VLF direction-finding scheme in current use, such as the standard crossed-loops-and-goniometer technique. (Author)

Descriptors :   (*WHISTLERS, DIRECTION FINDING), VERY LOW FREQUENCY, IONOSPHERIC PROPAGATION, MAGNETOSPHERE, LOOP ANTENNAS, CIRCUITS, FOURIER ANALYSIS, INTEGRAL TRANSFORMS, COMPUTER PROGRAMS

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE