December 2005
Intermediate to advanced
475 pages
12h 6m
English
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SHORT QUESTIONS AND ANSWERS
Q1. What do you mean by a signal?
Ans.: If a function represents a physical quantity or a variable containing information about the behaviour and nature of a phenomenon, it is known as a signal.
Q2. What do you mean by a system?
Ans.: A device or a set of rules defining the functional relation between the input and output is known as a system.
Q3. classify continuous time systems.
Ans.: Continuous time signals are classified as follows:
- Analog signal: A continuous time signal x(t) is said to be an analog signal if it takes any value in the interval (a, b) where a and b may be –∞ to ∞ respectively.
- One-sided signal: If a continuous time signal x(t) has zero value for t < 0, the signal is said to be one side (positive ...
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