Accession Number:

ADA402834

Title:

Coherent Beacon System for TechSat21 Science and Engineering

Descriptive Note:

Final rept. 1 Jun 1999-30 Nov 2001

Corporate Author:

SCION ASSOCIATES TOWNSEND WA

Personal Author(s):

Report Date:

2002-05-23

Pagination or Media Count:

40.0

Abstract:

A coherent radio beacon system has been designed that addresses the scientific, engineering and operational needs of the TechSat21 distributed aperture Space Based Radar SBR. Had the program gone ahead, the beacon would have functioned as an unambiguous diagnostic of ionospheric effects for comparison to SBR performance. The cumulative beacon observations would have also provided the detailed statistical characterization of the radar channel that is required for development of SBR operational and mitigation strategies. As a scientific resource, beacons installed on multiple satellites of the TechSat21 cluster would have been able to separate, for the first time, the spatial and temporal variations in ionospheric structure. The engineering and scientific design rationale is outlined, antenna options are discussed, and a high-accuracy, beacon-based cluster ranging system is described.

Subject Categories:

  • Space Navigation and Guidance
  • Active and Passive Radar Detection and Equipment
  • Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE