PERFORMANCE OF THE AN/GMD-2 RAWIN SET IN THE DENPRO SYSTEM
Abstract
An analysis is performed of the velocity and altitude data derived from the AN/GMD-2 rawin set track of four flights of the density probe (DENPRO) vehicle. Data from AN/FPS-16 radars are available for two of the flights and are used as a basis for evaluating the AN/GMD-2 data. Slant ranges and vehicle velocities derived from the AN/GMD-2 compare favorably with those derived from the AN/FPS-16 data. Vehicle altitudes derived from the AN/GMD-2 are consistently lower than those derived from the AN/FPS-16. This was due to AN/ GMD-2 rawin-determined evaluation angles being lower than AN/FPS-16 radar- determined evaluation angles by varying amounts, though the reason for this has not yet been determined. It has been concluded (1) that the modified AN/GMD-2 is capable of tracking a rocket probe, (2) that AN/GMD-2 rawin-determined velocities may be expected to be within 1 per cent of AN/FPS-16 radar-determined velocities, and (3) that AN/GMD-2 rawin-determined altitudes are about 1 per cent lower than AN/FPS-16 radar-determined altitudes, up to an altitude of 400, 000 feet. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1965
- Accession Number
- AD0625118
Entities
People
- R. A. Wallston