Accession Number : AD0478254


Title :   TROPOSPHERIC REFRACTION CORRECTIONS USING A MICROWAVE RADIOMETER.


Descriptive Note : Technical memo.,


Corporate Author : PAN AMERICAN WORLD AIRWAYS INC PATRICK AFB FLA GUIDED MISSILES RANGE DIV


Personal Author(s) : Menius ,A C ; Martin ,C F ; Layson ,W M ; Flagg,R S


Report Date : 16 Nov 1964


Pagination or Media Count : 52


Abstract : The accuracy of radar tracking systems has increased to the stage where one of the the major limiting factors is tropospheric refraction, especially at low elevation angles. Much effort has been expended to establish realistic error models and to correlate ground measurements with refraction over the ray path. Because of the variability, both in space and in time, of the refractive index of the atmosphere, these efforts have net with only limited success. This report discusses a technique which shows promise of considerably improving this situation. (Author)


Descriptors :   *TROPOSPHERE , *MICROWAVES , *ATMOSPHERIC REFRACTION , REFRACTION , SORPTION , CORRECTIONS , RADIOMETERS , RADAR TRACKING , MEASUREMENT , INSTRUMENTATION , FREQUENCY , ELECTROMAGNETIC RADIATION , WATER , DROPS , NOISE , NOISE(RADAR) , PHYSICAL PROPERTIES , MATHEMATICAL ANALYSIS


Subject Categories : Optics
      Radio Communications


Distribution Statement : APPROVED FOR PUBLIC RELEASE