Accession Number:

ADA445566

Title:

Technology Disruptions in Future Communication Payloads (Technologies de rupture pour futures charges utiles de telecommunications)

Descriptive Note:

Conference paper

Corporate Author:

ALCATEL SPACE TOULOUSE (FRANCE)

Personal Author(s):

Report Date:

2005-07-13

Pagination or Media Count:

8.0

Abstract:

The future market of satellite telecommunications will be shaped by four main trends democratization, regionalization, digitalization, and the use of higher frequency bands. To cope with the economic and technical demands of the market and to compete with terrestrial networks, operators and manufacturers will need to upgrade their satellites. The evolution of satellite communications could go one of three ways gigantism, adaptation, or modularity. Any of these ways will require satellite payloads to evolve from present levels of complexity that are mainly suited for TV broadcasting and telephone trunking in the Ku and C bands, to a new and higher level of complexity. In any scenario, innovative and disruptive technologies will be welcome. A first wave of disruptive technologies could come from optical and optoelectronic technologies. The rapid expansion of these techniques in terabit terrestrial networks could benefit satellite wideband payloads. Large bandwidth, mass savings, flexibility, and advanced processing are expected. A second wave of disruptive technologies could come from the cold, specifically, chill electronics, superconductivity, and cryogenics. High-temperature superconductors HTS allow for very low noise front ends and compact and lossless filters. Low-temperature superconductors LTS used in rapid single-flux-quantum RSFQ logic integrated circuits give the required computing power for wideband signal processing and analog-to-digital flash conversion of microwave signals. Digital signal processing also will bring disruptions to communication satellites. Digital techniques will enhance every aspect of payload processing, including beam forming, filtering, routing, linearization, and demodulation. Digitized onboard processors will enhance flexibility, performance, and reconfigurability. Microelectromechanical systems MEMS also will play a leading role in the design of next-generation payloads.

Subject Categories:

  • Computer Hardware
  • Radiofrequency Wave Propagation
  • Unmanned Spacecraft
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE