Question

He time difference signal u[n] - u[n-1] is equal to a. Unit impulse signal b. Another step signal c. Unit ramp signal d. None of these

Answer 1

Answer:

a unit impulse signal

i.e option A

Answer 2

Time difference signal u[n] - u[n-1] is equal to

Explanation:

• The unit step function u[n] = 1 for all n>=0, hence u[1] = 1.
• Discrete time unit step signal is defined as; U(n)={1,forn≥00,forn<0.
• The discrete-time signal is also called unit sample sequence.
• So, the correct answer is a. Unit impulse signal.