Detection of Frequency-Hopped Waveforms Embedded in Interference Waveforms with Noise

Abstract

Bandwidth usage has become more complex such that it is not uncommon that multiple signals of appreciable power may be present within the same bandwidth. The presence of multiple signals in addition to additive white Gaussian (AWGN) increases the difficulty of detecting frequency-hopped (FH) waveforms. This paper investigates the performance of an exponential-averaging based FH detection method in the presence of interfering signals and AWGN. The detection method provides an estimate of the noise plus inference spectrum using exponential averaging and then generates an estimate of the desired signal spectrum by combining the estimated noise plus interference spectrum with the composite spectrum.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2007
Accession Number
ADA497957

Entities

People

  • C. E. Brown
  • Clark Robertson
  • Frank Kragh
  • John Weber
  • Kyle Kowalske

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Algorithms
  • Bandwidth
  • Carrier Frequencies
  • Detection
  • Detectors
  • Environment
  • False Alarms
  • Frequency
  • Frequency Bands
  • Information Operations
  • Noise
  • Probability
  • Probability Density Functions
  • Random Variables
  • Simulations
  • Warning Systems
  • Waveforms

Fields of Study

  • Engineering

Readers

  • Acoustical Oceanography.
  • Calculus or Mathematical Analysis
  • Phased Array Antenna Design.

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference