WAVEFORM AND SPECTRUM DISTORTION OF NARROW-BAND SIGNALS IN NOISE CAUSED BY NON-LINEAR MEMORYLESS DEVICES, WITH APPLICATIONS TO QUANTIZERS.

Abstract

The signal waveform and spectrum distortion caused by non-linear memoryless devices with narrow-band input signals and broad-band input noise are investigated, and numerically evaluated for multi-bit quantizers. The results for general non-linear devices are in the form of single series and integrals amenable to computer evaluation. For both one and two narrow-band input signals in the presence of broad-band noise, results of several kinds have been obtained. They include: the instantaneous harmonic and intermodulation product output signal amplitude- and phase-modulations, their average power, their average envelope, and their RMS bandwidth. Numerical evaluation of these quantities for optimum and optimum-uniform multi-bit quantizers is accomplished; from these results the amount of distortion versus the number of bits can be ascertained. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 31, 1967
Accession Number
AD0815273

Entities

People

  • Albert H. Nuttall

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Bandwidth
  • Computers
  • Distortion
  • Integrals
  • Intermodulation
  • Modulation
  • Phase Modulation
  • Spectra
  • Test And Evaluation
  • Waveforms

Fields of Study

  • Engineering

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Radio communications and signal processing.