**EC6303 Signals and Systems Important questions**

EC6303 Signals and Systems Important questions Regulation 2013 Anna University free download. Signals and Systems EC6303 Important questions pdf free download.

**Sample EC6303 Signals and Systems Important questions:**

**1 Define Signal**

Signal is a physical quantity that varies with respect to time , space or any other independent variable.

Or It is a mathematical representation of the system Eg y(t) = t. and x(t)= sin t.

**2 Define system .**

A set of components that are connected together to perform the particular task. (ec6303 signals and systems important questions)

**3 What are the major classifications of the signal?**

(i) Discrete time signal

(ii) Continuous time signal

**4 Define discrete time signals and classify them.**

Discrete time signals are defined only at discrete times, and for these signals, the independent variable

takes on only a discrete set of values. (ec6303 signals and systems important questions)

Classification of discrete time signal:

i. Periodic and Aperiodic signal

ii. Even and Odd signal

iii. Causal Non Causal

iv. Energy and Power

**5 Define continuous time signals and classify them.**

Continuous time signals are defined for a continuous of values of the independent variable. In the case of

continuous time signals the independent variable is continuous. For example:

(i) A speech signal as a function of time

(ii) Atmospheric pressure as a function of altitude (ec6303 signals and systems important questions)

Classification of continuous time signal:

i. Periodic and Aperiodic signal

ii. Even and Odd signal

iii. Causal Non Causal

iv. Energy and Power

v. Random and Deterministic Signals

**6 Define discrete time unit step &unit impulse.**

Discrete time Unit impulse is defined as

δ [n]= {0, n ≠ 0

{1, n=0 Unit impulse is also known as unit sample.

Discrete time unit step signal is defined by

U[n]={0,n=0

{1,n>= 0

**7 Define continuous time unit step and unit impulse.**

Continuous time unit impulse is defined as

δ (t)={1, t=0

{0, t ≠ 0

Continuous time Unit step signal is defined as

U(t)={0, t<0

{1, t ≥ 0 (ec6303 signals and systems important questions)

Subject Name | Signals and Systems |

Subject Code | EC6303 |

Regulation | 2013 |

EC6303 Signals and Systems Important questions **click here to download**

**EC6303 Signals and Systems Syllabus**

**EC6303 Signals and Systems Notes**

**EC6303 Signals and Systems Question Bank**