Radar system important questions (RS)

Radar system important questions (RS)

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Unit-5

  1. What is blind speed? What are the methods used to eliminate blind speed in MTI Radars?
  2. Explain about range gated Doppler Filters?
  3. The MTI radar used by a traffic control police to measure the speed of vehicles. If the Doppler frequency shift measured from the moving vehicle is 2 kHz. Calculate the speed of vehicle, if radar is operating at 1GHz with PRF of 2000Hz.
  4. Discuss about the internal fluctuation of clutter which limits the performance of MTI Radar?

Unit-6

  • Explain with the help of block diagram amplitude comparison monopulse radars for extracting error signals in both elevation and azimuth?
  • Why does tracking radar have poor accuracy at low elevation angles Explain?
  • With diagrams explain Split-range-gate tracking?
  • Compare the different trackers?

Unit-7

  • Discuss the relations between the matched filter characteristics and correlation function?
  • Explain detection criteria in radar signals?
  • Explain how a multiple frequency CW radar technique is used for the accurate measurement of distance in surveying and in missile guidance?
  • What is FM altimeter? Explain how it works and what are the applications of it?

Unit-8

  • Define the noise figure of a radar receiver. Derive an expression for the noise figure of N networks that are in cascade.
  • Explain the different types of displays used in radar receiver?
  • Discuss Radar CRT phosphor characteristics?
  • Explain about Color CRTs?
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