Question

Determine the discrete-time signal: x(n)=1 for n≥0 and x(n)=0 for n<0

(a) Unit ramp sequence

(b) Unit impulse sequence

(c) Exponential sequence

(d) Unit step sequence

This question was addressed to me by my school principal while I was bunking the class.

This is a very interesting question from Discrete Time Signals in chapter Signals and Systems Basics of Signals and Systems

Answer 1

Correct choice is (d) Unit step sequence

To explain I would say: Unit step is defined by: x(n)=1 for n≥0 and x(n)=0 for n<0.