Data Relay Satellite System Research Articles

Characterization of High-Rate QPSK Channel with Adaptive Equalization

A computer simulation model capable of predicting the performance nce of a high-dta-rate end-to-end communication system with adaptive equalization is described in this paper. The model is used to characterize the behavior of NASA's proposed tracking and data relay satellite system (TDRSS), while accounting for signal distortion effects due to operational conditions and the required hardware are components necessary to fulfill mission objectives. Specifically, the performance of the TDRSS high-dta-rate lik (300 Mbps) is defined, both with and without adaptive equalization.

Radiation and Shielding in Space

"Radiation and Shielding in Space." Nuclear Technology, 15(3), pp. 477–478 Additional informationNotes on contributorsS. H. TurkelS. H. Turkel (BS and MS, physics, mathematics and education) is a member of the technical staff, North American Rockwell Corporation, Space Division; he is presently concerned with communications statellites, specifically, a tracking and data relay satellite system. He is a fellow of the American Association for the Advancement of Science and a member of the American Institute of Aeronautics and Astronautics, the American Physical Society, the American Astronautical Society, and the Operations Research Society.