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Definition study for space shuttle experiments involving large, steerable millimeter-wave antenna arrays
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Levis, C. A. |
| Copyright Year | 1976 |
| Description | The potential uses and techniques for the shuttle spacelab Millimeter Wave Large Aperture Antenna Experiment (MWLAE) are documented. Potential uses are identified: applications to radio astronomy, the sensing of atmospheric turbulence by its effect on water vapor line emissions, and the monitoring of oil spills by multifrequency radiometry. IF combining is preferable to RF combining with respect to signal to noise ratio for communications receiving antennas of the size proposed for MWLAE. A design approach using arrays of subapertures is proposed to reduce the number of phase shifters and mixers for uses which require a filled aperture. Correlation radiometry and a scheme utilizing synchronous Dicke switches and IF combining are proposed as potential solutions. |
| File Size | 2562331 |
| Page Count | 40 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19760023330 |
| Archival Resource Key | ark:/13960/t0ms8hb3g |
| Language | English |
| Publisher Date | 1976-07-01 |
| Access Restriction | Open |
| Subject Keyword | Communications And Radar Steerable Antennas Radio Astronomy Atmospheric Turbulence Space Shuttles Millimeter Waves Intermediate Frequencies Antenna Arrays Technology Utilization Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
