Loading the LES-9 Wideband UHF Transponder

Abstract

This report describes results of a loading study performed for the LES-9 wideband UHF transponder. The study goal was to improve service quality, and increase satellite utilization by scheduling more concurrent users. Power- sharing models for LES-9 are developed using the time-domain model for nonlinear transponders. All nonsignal transponder output power is treated as noise, with power spectrum uniformly distributed across the transponder bandwidth. Compatible groups of users are found for LES-9, supporting common user terminal configurations. Based on the results of this study, it is recommended that all users be allowed to increase uplink power. (r.h.)

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Document Details

Document Type
Technical Report
Publication Date
Jun 21, 1990
Accession Number
ADA226179

Entities

People

  • Bruce F. Mcguffin

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Artificial Satellites
  • Bandwidth
  • Bessel Functions
  • Circular Polarization
  • Data Rate
  • Distortion
  • Frequency
  • Frequency Bands
  • Frequency Domain
  • Power Levels
  • Power Spectra
  • Satellite Communications
  • Spectra
  • Time Domain
  • Transmitters
  • Transponders

Readers

  • Aviation Safety and Air Traffic Management
  • Computational Fluid Dynamics (CFD)
  • Phased Array Antenna Design.

Technology Areas

  • Space
  • Space - Satellites