Harmonic Cancellation System.

Abstract

The objective of this effort was to investigate Interference Cancellation System (ICS) techniques to solve the harmonic and intermoduation products (IMP) generated as the result of high power jammers, HF/VHF/UHF transmitter signals impinging on a nonlinear junction somewhere on the aircraft during flight. The problem becomes very complex when trying to receive a desired satellite starved signal. Since a reference sample of the nonlinear signal is not available, it has to be synthesized to a high degree of accuracy in order to be able to cancel the interfering signal. The crux of this problem is the synthesization of the nonlinear signal without concurrently cancelling the desired signal. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1980
Accession Number
ADA091168

Entities

People

  • Stephen J. Rosasco

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Aircrafts
  • Amplitude Modulation
  • Artificial Satellites
  • Bandwidth
  • Cancellation
  • Carrier Frequencies
  • Computer Simulations
  • Control Systems
  • Distortion
  • Frequency
  • Frequency Bands
  • Modulation
  • Plastic Explosives
  • Signal Processing
  • Time Domain
  • Waveform Generators

Fields of Study

  • Engineering

Readers

  • Calculus or Mathematical Analysis
  • Radio communications and signal processing.
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space