Question

The spectrum of white noise and impulse noise is similar in terms of ________

(a) magnitude spectrum

(b) phase spectrum

(c) both magnitude spectrum and phase spectrum

(d) amplitude spectrum

I have been asked this question at a job interview.

The question is from Frequency Domain Representation in portion Double Sideband Suppressed Carrier Modulation of Analog Communications

Answer 1

Right answer is (a) magnitude spectrum

Easy explanation: White noise is a random signal having equal intensities of different frequencies. Impulse noise is a type of noise consisting of sudden sounds, which includes unwanted and instantaneous signals. Thus, they have only their magnitude in common.