A NEW SATELLITE MULTIPLE ACCESS TECHNIQUE.

Abstract

The Second Order Coherent Multiple Access (SOCMA) technique is proposed to satisfy the simultaneous demands of a large group of communications satellite users. The three basic satellite multiple access techniques, time, frequency, and code division techniques, are briefly reviewed. The performance of SOCMA is evaluated and compared to that of the three basic techniques. The analysis uses random waveform computer simulation to investigate the SOCMA performance. The goodness of the random waveform simulation, in terms of simulation precision, is evaluated by application of the Chi-Square test. For this evaluation, a Quadratic/Gradient optimization algorithm is formulated which approximates the Chi-square surface in a local neighborhood of the mean and standard deviation by a parabolic surface. Utilizing this algorithm, a minimum Chi-square is found which yields the best fit of the normal distribution to the sample histogram distribution. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1970
Accession Number
AD0713674

Entities

People

  • John J. Patti

Organizations

  • Rome Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Algorithms
  • Artificial Satellites
  • Chi Square Test
  • Computer Simulations
  • Data Science
  • Frequency
  • Information Science
  • Multiple Access
  • Normal Distribution
  • Simulations
  • Waveforms

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Solar Photovoltaics and Thermoelectric Devices.
  • Statistical inference.

Technology Areas

  • Space