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TN TRB Electrical 2012 Paper

Option 3 : y(n) = x (n – 1)

CT 1: Determinants and Matrices

2903

10 Questions
10 Marks
12 Mins

__Concept:__

A **discrete time system** is defined as mathematically as a transformation that transforms an input sequence x(n) into an output sequence y(n) according to the input.

It is represented as y(n) = T{x(n)}

**Delay system:** It is expressed as, y(n) = x(n – n_{d})

Where n_{d} is the delay of the system

__Application:__

1. y(n) = x(n), there is no delay in the system

2. y(n) = x(n + 1), there is no delay in the system

3. y(n) = x(n – 1), the system is delay by one unit

4. y(n) = x(2n), the system is compressed by 2 units