Passive Infrared Surveillance. Part 2. Threshold-Crossing Receivers

Abstract

A number of infrared passive surveillance receivers are analyzed with the theory developed in Part I (NRL Report 8320). The specific problem of interest is the detection of low-contrast point-source targets against high- contrast structured backgrounds. A new and promising approach to signal processing is proposed for minimizing background-induced false alarms while retaining maximum target-detection sensitivity. It is shown that improvements in focal-plane-array (FPA) technology employing time delay and integration (TDI) may afford 'excess' detector sensitivity that can be intentionally sacrificed in the interest of enhanced performance against structured scenes.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1980
Accession Number
ADA081723

Entities

People

  • Richard A. Steinberg

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Detection
  • Detectors
  • Dwell Time
  • False Alarms
  • Focal Plane Arrays
  • Focal Planes
  • Frequency
  • Probability
  • Probability Density Functions
  • Quantum Noise
  • Random Variables
  • Shot Noise
  • Square Roots
  • Target Detection
  • Time Intervals
  • Two Dimensional
  • Warning Systems

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Sensor Fusion and Tracking Systems.
  • Systems Analysis and Design