Accession Number : AD0781179

Title :   Millstone Hill Radar Propagation Study: Scientific Results. Part I.

Descriptive Note : Technical rept.,

Corporate Author : MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s) : Evans,John V.

Report Date : 13 NOV 1973

Pagination or Media Count : 10

Abstract : Satellites of the Navy Navigation Series were tracked simultaneously at UHF and L band to observe and measure the effects of ionospheric refraction, and UHF Thomson (incoherent) scatter soundings were made to study the ionosphere. The report presents the scientific results achieved during the course of the study. By averaging results obtained during many daytime satellite passes, the angular bias refraction of the UHF beacon signals caused by the earth's ionosphere was accurately determined. Good agreement was found between the measured values and predictions based upon ray-tracing studies (performed at BTL using incoherent-scatter electron-density profiles), together with real-time estimates of the electron content along the line-of-sight to the satellite by means of a differential-Doppler experiment. (Modified author abstract)

Descriptors :   *RADAR, *IONOSPHERIC PROPAGATION, *ATMOSPHERIC SOUNDING, IONOSPHERE, ATMOSPHERIC REFRACTION, RADAR BEACONS, ELECTRON DENSITY, IONOSPHERIC DISTURBANCES, VARIATIONS, RADAR CLUTTER, SATELLITE TRACKING SYSTEMS

Subject Categories : Atmospheric Physics
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE