High Dynamic Range Nonlinear Measurement using Analog Cancellation

Abstract

An active analog canceller system is implemented to maximize the dynamic range of a two-tone nonlinear measurement, a common test for nonlinear radio frequency behavior. The canceller uses active feedforward cancellation, controlled by a fully automated iterative algorithm. The system enables testing of a variety of nonlinear channels and devices, either by direct connection or wireless probing. In this report, the advantages of feedforward cancellation are summarized, a two-tone architecture using this cancellation is presented, the software algorithm for automating measurements using this architecture is explained, and the performance of the cancellation system recently constructed at the U.S. Army Research Laboratory (ARL) is evaluated using measured data.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2012
Accession Number
ADA574839

Entities

People

  • Gregory J. Mazzaro
  • Joshua M. Wetherington

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Attenuation
  • Bandwidth
  • Cancellation
  • Dynamic Range
  • Frequency
  • Frequency Bands
  • High Dynamic Range
  • Losses
  • Measurement
  • Military Research
  • Phase Shift
  • Power Amplifiers
  • Power Supplies
  • Radio Frequency
  • Radio Frequency Devices
  • Signal Generators

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Neural Network Machine Learning.
  • Phased Array Antenna Design.