Accession Number : AD0718272

Title :   Advanced Research in Propagation Techniques.

Descriptive Note : Quarterly rept. no. 3, 20 Aug-19 Nov 70,

Corporate Author : STANFORD UNIV CALIF STANFORD ELECTRONICS LABS

Personal Author(s) : Waterman,A. T. , Jr

Report Date : FEB 1971

Pagination or Media Count : 18

Abstract : The report deals with research on propagation of microwaves between two points on earth's surface separated a distance considerably beyond line of sight. Frequency used is 3.2 GHz. Receiving system employs an antenna array which permits wave front sampling. Propagation measurements are supplemented by meteorological measurements 0.9 temperature, humidity turbulence etc. Profiles of refractive index are obtained by flying a plane equipped with a microwave refractometer through the atmospheric path in which the signal is scattered. (Author)

Descriptors :   (*RADIO WAVES, OVER THE HORIZON DETECTION), ANTENNA ARRAYS, WAVE PROPAGATION, SCATTERING, REFRACTIVE INDEX, POWER SPECTRA, ANTENNA RADIATION PATTERNS, METEOROLOGICAL PHENOMENA, S BAND, TROPOSPHERE

Subject Categories : Radiofrequency Wave Propagation
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE