Advanced Architectures for Signal Processors: (A Simple RNS (Residue Number System)/Systolic Architecture for Isolated Word Recognition).

Abstract

Isolated work recognition is a computationally intensive processing function for which the combination of residue number system (RE4NS) computation and systolic array architecture offers practical simplification in the design of a special-purpose hardware processor. We have developed a simple architecture that uses short-time correlation analysis to form the spectral patterns, a distortion function employing squared Euclidean distance between the normalized correlation values of the test and reference utternace segments, and a two-dimensional pipelined processor array to implement dynamic time-wraping for pattern registration. With the exception of the normalization of the sample correlation values, all significant computations are carried out in a residue number system of compact size to be implemented in a specially designed hardware of low complexity. This combination of techniques provides for a very high processing throughput in simple hardware that can be used for real-time word recognition in a large vocabulry.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1986
Accession Number
ADA173600

Entities

People

  • A. L. Bequillard
  • D. O. Carhoun
  • W. L. Eastman

Organizations

  • MITRE Corporation

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Algorithms
  • Computations
  • Computer Programming
  • Computers
  • Correlation Analysis
  • Databases
  • Detection
  • Distortion
  • Dynamic Programming
  • Error Analysis
  • Identification
  • Numbers
  • Recognition
  • Signal Processing
  • Two Dimensional
  • Very Large Scale Integration
  • Word Recognition

Readers

  • Computer Programming and Software Development.
  • Integrated Circuit Design and Technology.
  • Speech Processing/Speech Recognition.