Start Date
4-1971 8:00 AM
Description
Since both metric and non-metric data are transmitted through a missile's antenna system, assurance of an adequate signal level at the ground sites is essential in planning the range instrumentation support of a launch. For this reason a theoretical signal strength reduction is performed at the Air Force Eastern Test Range before every missile launch.
The missile contractor defines the radiation characteristics of each missile-antenna combination in the form of an antenna pattern. The antenna pattern format and the vehicle-antenna coordinate system have been defined by the Inter Range Instrumentation Group. The aspect angles for each tracking site are computed for the theoretical trajectory. These aspect angles are then coupled with the antenna pattern, so that with knowledge of the other parameters, (1) transmitted power; (2) frequency; (3) ground antenna gain, and (4) the polarizations of both antennas, the power received by a ground station can be readily calculated.
The Theoretical Signal Strength Reduction on the Air Force Eastern Test Range
Since both metric and non-metric data are transmitted through a missile's antenna system, assurance of an adequate signal level at the ground sites is essential in planning the range instrumentation support of a launch. For this reason a theoretical signal strength reduction is performed at the Air Force Eastern Test Range before every missile launch.
The missile contractor defines the radiation characteristics of each missile-antenna combination in the form of an antenna pattern. The antenna pattern format and the vehicle-antenna coordinate system have been defined by the Inter Range Instrumentation Group. The aspect angles for each tracking site are computed for the theoretical trajectory. These aspect angles are then coupled with the antenna pattern, so that with knowledge of the other parameters, (1) transmitted power; (2) frequency; (3) ground antenna gain, and (4) the polarizations of both antennas, the power received by a ground station can be readily calculated.
Comments
No other information or file available for this session.