The Moving Target Detector MTI System

The Moving Target Detector MTI System

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There have been other systems called moving target detectors and the term could lead to confusion to some experienced technicians unfamiliar with air traffic control radar. MTI, discussed in previous chapters, is an abbreviation for moving target indicator, a broad class of radar systems which indicate moving targets. An FAA MTD system, the system type hereafter simply called MTD, is within the broader class of MTI radar systems, and may be called an MTI system in some literature.

Chapter Contents:

  • MTD Definition
  • Improvement over Canceler-Type MTI
  • General Description
  • The Original Analog Range-Gated Doppler Filters
  • An Overview of the MTD System
  • Timing Scheme
  • The i-f Amplifier and Phase Detectors
  • The Analog-to-Digital Converter
  • Memory and Filter Bank
  • Power Combiner (Rectangular-Coordinate Converter)
  • The Target and Two-Level Detector
  • The Postprocessor
  • Rectangular Coordinate Data Input
  • The Input Data Buffer
  • The General Math Unit
  • The Filter Arithmetic Units
  • The Accumulated Product
  • The Filter Data Message
  • The Power Combiner
  • The Target and Two-Level Weather Detector
  • The Mean-Level Threshold (MLT) Cards
  • Improved Detection in Weather
  • Primitive Detector Number 1 (PD1)
  • Clutter Map and Clutter Map Control Card
  • Primitive Detector No 2 (PD2)
  • The Geocensor Map
  • The Primitive Formatter Card
  • The C&I Formatter Card
  • The Weather Data
  • The F1 Control Card
  • The Two-Level Weather Detector
  • The Characteristics of Weather Echoes
  • Weather Level Detection and MTI
  • Selecting Normal or MTI Inputs for the Two-Level Weather Detector
  • Two-Level Weather Detector Operation
  • The Postprocessor and MTD Software
  • Primary Radar Data Inputs
  • Secondary (Beacon) Data Inputs
  • The C&I Software Module
  • Centroiding
  • Quality and Confidence Ranking
  • rf Interference (rfi ) Testing
  • The Second Adaptive Threshold Map
  • Track Eligibility
  • Performance Observation
  • Second Adaptive Map Maintenance Display
  • The Target Performance Window
  • Appearance of the MTI Reflector
  • Azimuth Alignment
  • The Surveillance Processor (SP)
  • Two-Level Weather Smoothing and Contouring
  • The Message Interface
  • Review Questions
  • Answers to Review Questions

Inspec keywords: air traffic control; radar detection

Other keywords: moving target detector MTI system; FAA MTD system; air traffic control radar; MTI radar systems; moving target indicator system

Subjects: Air traffic control; Radar equipment, systems and applications

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