PROJECT WIDE BAND
Abstract
The results of a theoretical and experimental program to determine the influence of the atmosphere on radar resolution are presented. The limits imposed by the atmosphere on resolution in range, angle and velocity are treated theoretically and estimated values are presented based on current experimental data. General expressions are derived which permit assessment of the atmospheric influence on resolution as a function of frequency. Consideration is given to multipath dispersion, phase fluctuations and unequal target cross sections. A description of a radio astronomy experiment which was performed to deduce the phase fluctuations incurred by a wave traversing the ionosphere is presented with the results obtained. Similarly an experiment performed to determine the tropospheric contribution to phase path fluctuations is presented along with a discussion of the validity of the data as limited by the measurement technique employed. An application of the data is included which provides an assessment of the influence of phase fluctuations on the performance of a focused, multiple antenna, communications system.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1964
- Accession Number
- AD0609619
Entities
People
- Walter A. Flood
Organizations
- Calspan