Accession Number : ADA041864

Title :   Air Traffic Control Experimentation and Evaluation with the NASA ATS-6 Satellite. Volume IV. Data Reduction and Analysis Software.

Descriptive Note : Final rept. Sep 73 to Dec 75,


Personal Author(s) : Thompson,A D ; Wilson,S C ; Rieder,P F ; Chu,W L ; Mardesich,M J

PDF Url : ADA041864

Report Date : Sep 1976

Pagination or Media Count : 214

Abstract : Software used for the reduction and analysis of the multipath prober, modem evaluation (voice, digital data, and ranging), and antenna evaluation data acquired during the ATS-6 field test program is described. Multipath algorithms include reformatting operations, delay-spectra time histories, delay-Doppler scatter function S(Tau, Omega), noise determination and removal, spread calculations, airborne tape analysis, and other detailed processing including time-domain analysis and various integral and Fourier operations on S(Tau, Omega). Modem and antenna evaluation data processing software includes algorithms for the determination of (1) C/N sub o and multipath interference ratio, S/I, (2) digital data bit-error rates, block error statistics, and inter-error spacing, and (3) ranging error statistics and distribution. Sample outputs are given. Program listings and other information are provided in an auxiliary software data package. The report consists of seven volumes: I - Executive Summary; II - Demonstration of Satellite-Supported Communications and Surveillance for Oceanic Air Traffic Control; III - Summary of U.S. Aeronautical Technology Test Program; IV - Data Reduction and Analysis Software; V - Multipath Channel Characterization Test; VI - Modem Evaluation Test; VII - Aircraft Antenna Evaluation Test. (Author)

Descriptors :   *Aircraft antennas, *Air traffic control systems, *Scientific satellites, *Communication satellites, Signal to noise ratio, Multipath transmission, Modems, Digital systems, Fast Fourier transforms, Algorithms, Envelope(Space), Scattering, Detectors, Data processing, Computer programs

Subject Categories : Electrical and Electronic Equipment
      Air Navigation and Guidance
      Unmanned Spacecraft

Distribution Statement : APPROVED FOR PUBLIC RELEASE