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Both AESA and PESA are ________ radars?

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Both AESA and PESA are ________ radars?

(a) Pulse

(b) Continuous wave

(c) Low frequency

(d) Analog

This question was posed to me in homework.

This interesting question is from Electronic Scanned Array Radar in division Surveillance Systems, Mapping and Multimode Radars of Avionics

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The correct option is (a) Pulse

To explain I would say: Both AESA and PESA that are currently in use are pulse radars. Its basic principle is that shorts bursts of radio pulse are emitted which reflect off a target and the reflected pulse gives the information about the object.

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