Optimum Quantization of a Class of Non Bandlimited Signals,

Abstract

We consider the quantization of a special class of non bandlimited signals, namely the class of discrete time signals that can be recovered from their decimated version. Similar to sigma-delta modulation ideas, we show that we can obtain a great reduction in the quantization noise variance due to the oversampled nature of these signals. We then consider noise shaping by optimizing a pre- and post filter around the quantizer and develop a closed form expression for the coding gain of the scheme under study. The use of an orthonormal filter bank as a sophisticated quantizer is investigated and several examples are provided.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1996
Accession Number
ADA327668

Entities

People

  • Jamal Tuquan
  • Palghat Vaidyanathan

Organizations

  • California Institute of Technology

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Deep Space
  • Delta Modulation
  • Electrical Engineering
  • Electronic Mail
  • Engineering
  • Filters
  • Filtration
  • Low Pass Filters
  • Military Research
  • Modulation
  • Modulators
  • Noise
  • Power Spectra
  • Signal Processing
  • Spectra
  • Time Signals
  • White Noise

Fields of Study

  • Engineering

Readers

  • Approximation Theory.
  • Phased Array Antenna Design.