Signal Signatures of Topographic Features Using Analog Technology.

Abstract

Signal signatures and signatures of various spectral decompositions of selected topographic features, such as line roads, road intersections, and rectangular buildings, were developed by using analog signal processing techniques. The signal signatures were constructed in the spatial domain, and the corresponding signatures of various spectral components were obtained in the Walsh transform domain. An electronic system for generating two-dimensional Walsh functions for decomposition of topographic features was designed and built. A scheme for detecting the decomposed spectral components using an analog processor was presented. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1979
Accession Number
ADA076110

Entities

People

  • Pi-fuay Chen
  • William W. Seemuller

Organizations

  • Geospatial Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Aerial Photographs
  • Analog Signals
  • Circuits
  • Delay Lines
  • Detection
  • Diagrams
  • Engineers
  • Light Sources
  • Midrange Computers
  • Nand Gates
  • Security
  • Shift Registers
  • Signal Processing
  • Two Dimensional
  • Video Signals
  • Virginia
  • Walsh Functions

Fields of Study

  • Engineering

Readers

  • Approximation Theory.
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Radar Systems Engineering.

Technology Areas

  • Microelectronics