Proceedings of the Workshop on Millimeter and Submillimeter Atmospheric Propagation Applicable to Radar and Missile Systems
Abstract
A workshop on millimeter and submillimeter wave propagation through the atmosphere was held on 20-22 March 1979 at Redstone Arsenal, Alabama. This workshop served as a forum where scientists in diversified fields exchanged information on the latest results and discussed controversial issues and unresolved problems. The first few papers were concerned with MICOM needs. They specified the operating regions of interest for tactical applications and explained the rationale for the selection of these regions. The Terminal Homing Measurements program was described. Several papers discussed absorption by water vapor. Classical theories do not adequately describe the measured absorption in window regions between strong absorption lines. Alternate methods of explaining the discrepancies are to introduce reasonable modifications to existing models of line shapes or to consider the effect of water vapor dimers. Other effects on atmospheric propagation and instrumentation for measuring these effects were also discussed. Absorption and scattering by hydrometeors, dust and smoke were considered. Additional papers were concerned with terrain effects, turbulence, natural atmospheric emissions, refractivity gradients, and the relatively new method of pulse generation by swept-gain superradiance.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- February 1980
- Bibcode:
- 1980STIN...8032617E
- Keywords:
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- Atmospheric Attenuation;
- Electromagnetic Scattering;
- Millimeter Waves;
- Submillimeter Waves;
- Wave Propagation;
- Decimeter Waves;
- Electromagnetic Wave Transmission;
- Extremely High Frequencies;
- Radio Transmission;
- Wavelengths;
- Communications and Radar