Accession Number : AD0885735
Title : Progress Report for January 1971 through March 1971 and for Contract Year September 1970 to August 1971.
Descriptive Note : Technical rept. no. 24,
Corporate Author : ILLINOIS UNIV AT URBANA RADIO RESEARCH LAB
Personal Author(s) : Wood, W.
Report Date : JUN 1971
Pagination or Media Count : 46
Abstract : This report deals with six separate research tasks: (1) an interferometer type RDF system (2-32 MHz) for intermediate and long range use; (2) an investigation of a technique for predicting the effect of multi-mode propagation on the direction-of-arrival of radio waves; (3) a method of correcting the diurnal deviation of the direction-of-arrival radio waves; (4) a comparison of methods of computing the direction of arrival of radio waves; (5) a method of measuring the vertical angle-of-arrival of radio waves using a CDAA; (6) azimuthal measurement of the man-made and atmospheric noise levels. (Author)
Descriptors : *DIRECTION FINDING), (*RADIO COMPASSES, (*ANTENNA ARRAYS, PHASED ARRAYS), (*POSITION FINDING, RADIO SIGNALS), RADIO INTERFEROMETERS, IONOSPHERIC PROPAGATION, DIURNAL VARIATIONS, ANGLE OF ARRIVAL, ATMOSPHERICS, ACCURACY, ERRORS, VERY LOW FREQUENCY.
Subject Categories : Electrical and Electronic Equipment
Radiofrequency Wave Propagation
Distribution Statement : APPROVED FOR PUBLIC RELEASE