BITM_BSP_QUIZ-2

Which of the following is NOT a valid plotting command ?

• Figure,

• Prod

• Plot

r(t) rampfunction, u(t) denotes stepfunction, then equation for the given signal is.

• r(t)-r(t-50)-u(t-50)

• r(t)-u(t-50)

p=ones(1,90);

t=(0:1:89);

plot(t,p);

What is the output of the code?

• A graph of a unit step function

• A graph of a pulse function

The convolution of [1 2 1] and [1 2 1] will have the highest amplitude at t= _________

• 3 Units

• 2 Units

a=[1 2 3];

b=2;

conv(a,b)

Output of the code is

• 2 3 1

• 2 4 6

t=[0:1:2];

plot(t,p);

hold;

plot(-t,p); Output is

• A mirror image of ramp function from 0 to 2 units in time

• A ramp function from 0 to 2 units in time and it’s a mirror image in the same window

Discrete time convolution is not possible in MATLAB.

• True

• False

The unit step response of an L.T.I. system is the convolution of a step signal and it’s ________

• Impulse response

• Ramp response

For a causal L.T.I. system, the impulse response is 0 for _________

• t<0

• t>0

The R.O.C. of impulse function is _________

• The entire z-plane

• Interior to the unit circle |z|=1