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If the target cross section is changing, the best system for accurate tracking is __________

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If the target cross section is changing, the best system for accurate tracking is __________

(a) sequential switching

(b) lobe switching

(c) conical scanning

(d) monopulse radar

The question was posed to me in an interview for job.

My enquiry is from Noise for AM Wave in portion Noise of Analog Communications

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Correct option is (d) monopulse radar

To explain I would say: Monopulse radar compares the received signal from a single radar pulse against itself in order to compare the signal in various aspects. If the target cross section is changing then it is the best system used for accurate tracking.

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