Question

The undesirable responses from buildings and clouds for the radar pulse are called as __________

(a) Noise

(b) Disturbance

(c) Clutter

(d) Radio error

I got this question by my college professor while I was bunking the class.

My doubt is from Primary and Secondary Radar topic in section Surveillance Systems, Mapping and Multimode Radars of Avionics

Answer 1

Correct answer is (c) Clutter

The best I can explain: The primary radar pulse is reflected by buildings and clouds and cause undesirable effects in the actual identification. These are called as clutter and can be eliminated by combing primary radar with secondary radar.