We all are aware about the importance and significance of terminologies in every field or area. It enables us to understand and grab the real and accurate meaning of the particular word or term. If our concepts of terminologies are not clear, then we would never understand the importance and reason of that particular word or subject or course. That’s why it is necessary to have clear and defined concept of different terminologies in our mind especially when it is the case of different branches of engineering such as electronic and communication engineering.
Engineers know very well that electronic communication generally uses electronic circuits to transmit, process and receive information between the two or more locations. The basic parts of ECE Engineering system include a transmitter, a communication medium or channel etc.
So it is important for every ECE Engineer to know the basic terminologies under this branch of engineering.
- Signal: Information needs to be converted into the digital form before transmitting electronically. A signal is that information that has been converted into the digital format. It includes Analog and Digital signals.
- Communication Channel: This is the medium by which a signal can be transmitted from the sender to the receiver. It can be a simple copper wire or a satellite system.
- Transducer: This is the device which is able to convert one form of the energy into another form of energy. In ECE, transducer is a device which converts one form of physical variable such as temperature, pressure and force etc into the corresponding electrical signal as well as provides it as an output.
- Receiver: Through this device, the signals can be transmitted and sent by the senders and can be decoded into a form so that it could be understand by the humans such as Television.
- Attenuation: It refers to the decrease in the strength of the analog or digital signal in ECE due to its transmission over the communication medium or channel. It generally occurs when signals are transmitted over long distances.
- Amplitude: It refers to the strength of the signal.
- Amplification: When the difference between the sender and receiver of the signal is too large, the amplification of the signals drops significantly.
- Bandwidth: It is very helpful in explaining the range of the frequency over which a signal has been transmitted.
- Modulation: It refers to the task of adding information to an electronic or optical waveform. This information may be added by the altering the frequency phase of the wave form.