Fundamentals of signal and system part 1

FUNDAMENTALS OF SIGNAL AND SYSTEM : Signals In electrical AND electronics engineering, the fundamental quantity of representing some information is called a signal. It does not matter what the information is i-e: Analog or digital information. In mathematics, a signal is a function that conveys some information. In fact any quantity measurable through time over […]

MCQ on Signal and system

Q1. Which mathematical notation specifies the condition of periodicity for a continuous time signal? (A) x(t) = x( t +T0)  (B) x(n) = x( n+ N) (C) x(t) = e-αt  (D) None of the above Q2. Which property of delta function indicates the equality between the area under the product of function with shifted impulse […]

Method to write a signal function f(t) ,if its graph is given

Q. write function f(t) of  signal whose graph is given below ?   Above given signal is represented in the form of  steps signal  So we can write graph function as  f(t) = (3-0) u(t-(-3)) + (-2-3)u(t-0) +(6-(-2))u(t-2) + (0-6)u(t-4) f(t) = 3u(t-3) -5u(t) + 8u(t-2) -6u(t-4) NOTE:  Amplitude of step at any time t= […]