Browsing International Telemetering Conference Proceedings, Volume 28 (1992) by Authors
ALTIMETER DATA PROCESSING ON BOARD THE TOPEX SATELLITEPerschy, James A.; Johns Hopkins University (International Foundation for Telemetering, 1992-10)The digital processing within the radar altimeter on board the TOPEX satellite to obtain science and engineering telemetry is described. The application of the Fourier transform, a second order tracking loop, waveform compression, and telemetry formatting is required.
COMMAND CENTER FOR THE SDI DELTA 181 SENSOR MODULEHeins, Robert J.; Johns Hopkins University (International Foundation for Telemetering, 1992-10)An orbiting sensor module, designed by The Johns Hopkins University Applied Physics Laboratory (JHU/APL), performed a number of significant Strategic Defense Initiative (SDI) Delta 181 program experiments. These experiments required on-orbit command and monitor operations involving a worldwide network of ground facilities. A major component was the sensor module command center (SMCC), which was designed and integrated by JHU/APL. The SMCC, located at Cape Canaveral Air Force Station (CCAFS), connected to a network of Eastern Test Range, Air Force Satellite Control Network (AFSCN), Kennedy Space Center, and Western Test Range assets. The complex nature of the mission presented numerous challenges to the design, integration, and operation of the SMCC. This paper presents a functional overview of SMCC design as well as unique aspects of supporting ground network telemetry and command operation.