An MTI Processor

An MTI Processor

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Moving target indicator (mti) theory was explained in detail in the preceding chapter. For practical application, the technician needs an exposure to an actual system. All systems bear great resemblances to each other, and a good knowledge of one makes all others understandable. The largest deployment of latter-day FAA canceler-type mti systems was the ASR-8, and that system will be used as a basis for the sample system to be described in this chapter. This sample system will differ somewhat from the ASR-8 in that auxiliary, or accessory, circuits, not essential to the processing of the target data, have been omitted.

Chapter Contents:

  • Introduction
  • Timing
  • Circuitry to the Canceler Input
  • The MTI Video Conditioner
  • The Swept Audio Generator
  • The Ramp Generator
  • The Quantizers
  • The Digital Canceler
  • Data Steering
  • Feedback Scaling
  • Hardwired Right and Left Shifting
  • Greater Detail, Dual Canceler Operation
  • The Input Register
  • The Feedback Adder and Limiter
  • The One-T r Data-Delay Path
  • Staggered fp and Canceler Operation
  • The Canceler 'Subtractor' Circuit
  • Canceler 1 to Canceler 2
  • Feedback Modes
  • The Register and Bipolar-to-Unipolar Converter
  • The Canceler Output
  • Canceler Testing and Troubleshooting
  • Post-Cancellation Circuits
  • The Quadrature Combine
  • Logarithmic Scaler and ftc Circuit
  • Log Conversion
  • ftc Operation
  • The 'Hole Filler'
  • The Normalization and Antilog Circuitry
  • The Enhancer
  • Review Questions
  • Answers to Review Questions

Inspec keywords: radar; synchronisation

Other keywords: moving target indicator theory; ASR-8 radar system; radar synchronizers; MTI processor; target data processing; latter-day FAA canceler-type MTI systems

Subjects: Radar equipment, systems and applications

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