Generally signals are single valued functions of time that convey the information which may be real (or) complex valued. The main classifications of signals are as follows. (i) Continuous – Time (CT) signals The signals that are defined for every instant of time or over a continuous range of time and is also called as
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Communication is the process of establishing connection or link whereby the information is transferred from one point called as source to the other point called as destination. Two of the main barriers in communication are the language and the distance. Out of them, the distance problem is solved now-a-day by means of long distance communication.
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A general communication system involves the transmission of information between two or more entities using a shared medium or channel. It typically consists of a sender that encodes a message, a transmission medium through which the message travels, a receiver that decodes the message, and a feedback mechanism to ensure accurate communication. The effectiveness of
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The two basic types of communications systems are: Analog communication systems, and Digital communication systems. An analog communication is a system in which the information signal is transmitted and received in an analog form means a continuously varying signal such as sine wave. Here, both the information and the carrier are analog signals. In digital
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