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Design data collection with skylab microwave radiometer-scatterometer s-193, volume 1
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Moore, R. K. |
| Copyright Year | 1975 |
| Description | The author has identified the following significant results. Observations with S-193 have provided radar design information for systems to be flown on spacecraft, but only at 13.9 GHz and for land areas over the United States and Brazil plus a few other areas of the world for which this kind of analysis was not made. Observations only extended out to about 50 deg angle of incidence. The value of a sensor with such a gross resolution for most overland resource and status monitoring systems seems marginal, with the possible exception of monitoring soil moisture and major vegetation variations. The complementary nature of the scatterometer and radiometer systems was demonstrated by the correlation analysis. Although radiometers must have spatial resolutions dictated by antenna size, radars can use synthetic aperture techniques to achieve much finer resolutions. Multiplicity of modes in the S-193 sensors complicated both the system development and its employment. An attempt was made in the design of the S-193 to arrange optimum integration times for each angle and type of measurement. This unnecessarily complicated the design of the instrument, since the gains in precision achieved in this way were marginal. Either a software-controllable integration time or a set of only two or three integration times would have been better. |
| File Size | 24121504 |
| Page Count | 740 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19760007471 |
| Archival Resource Key | ark:/13960/t58d4pn9f |
| Language | English |
| Publisher Date | 1975-09-01 |
| Access Restriction | Open |
| Subject Keyword | Earth Resources And Remote Sensing Statistical Analysis Snow Data Acquisition Soil Moisture Skylab Program United States Altimeters Computer Programs Microwave Radiometers Scatterometers Vegetation Brazil Erep 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 |
