Radar & Navigational Aids (Department Elective - II) — Winter 2018

Define the following parameters:

False alarm ii) Unambiguous range iii) Radar Cross section iv) Minimum detectable signal

Enlist the important applications of Radar? Also describe Frequency band used for various applications.

Enlist different types of displays used in Radar? Explain any two in detail.

Prove that the amplitude of the direction finding loop antenna is given by 2𝜋EAN𝜆(cos𝜙).

Prove that clutter power is inversely proportional to the square of the range.

Describe Second-time-around echoes effect in Radar with necessary waveforms.

Draw and explain block diagram of conical-scan tracking radar.

What is Doppler effect? Draw the block diagram of Pulse Doppler Radar. Explain function of each block in detail.

What do you understand by blind speed? How to eliminate it.

Explain MTI radar operation with the help of block diagram. How moving objects are recognized on an A Scope?

Explain the principle of RADAR with the help of block diagram. Explain radar range equation in terms of receiver noise figure, bandwidth and other related parameters.

Draw neat block diagram of FMCW radar and enlist its distinguished features.

Explain Global Positioning system.1

What is V.O.R? Explain its principle with necessary waveforms and operation of the VOR ground equipment.

Explain working of Microwave landing system (MLS). Also mention its advantage and disadvantage.

Explain the Distance Measuring Equipment in detail.

Explain Principle of Hyperbolic Navigation. Compare the Operation of LORAN-Aand LORAN –C.