An Analysis of Linear and Non-Linear Coherent Detection in Atmospheric Noise at Very Low Frequency

Abstract

The report is concerned with the performance analysis of coherent modems in atmospheric noise. Specifically, Phase Shift Keying (PSK, biphase), Coherent Frequency Shift Keying (CFSK), and Minimum Shift Keying (MSK) modems are described and analyzed for error rate performance in the non-Gaussian, impulsive atmospheric noise typical of a very low frequency (VLF) radio communication channel. The analyses include both linear and non-linear (band-pass, hard-limiting) pre-detection signal processing. In each case, experimentally derived error rate performance data is presented which shows close agreement with the computational results of the analyses.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1974
Accession Number
ADA002833

Entities

People

  • John T. Gamble

Organizations

  • Rome Laboratory

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Accuracy
  • Bandpass Filters
  • Communication Systems
  • Convolution Integrals
  • Demodulation
  • Detection
  • Filters
  • Filtration
  • Frequency Shift
  • Modulators
  • Probability Density Functions
  • Radio Communications
  • Random Variables
  • Sequences
  • Square Waves
  • Statistical Analysis
  • Statistical Data

Readers

  • Radio communications and signal processing.