4 edition of Principles of digital and analog communications found in the catalog.
Includes bibliographical references (p. 563-568) and index.
|The Physical Object|
|Pagination||xvi, 76 p. :|
|Number of Pages||83|
nodata File Size: 5MB.
There is no guarantee that digital signal processing can be done in real time and consumes more bandwidth to carry out the same information.
The difference between analog and digital technologies is that in analog technology, information is translated into electric pulses of varying amplitude. Microphones and speaker are perfect examples of analog devices. Best suited for audio and video transmission. Comparison chart Analog versus Digital comparison chart Analog Digital Signal Analog signal is a continuous signal which represents physical measurements. Comparison of Analog vs Digital Quality Digital devices translate and reassemble data and in the process are more prone to loss of quality as compared to analog devices.
Computers, CDs, DVDs, and other digital electronic devices. Technology Analog technology records waveforms as they are. Data is converted into binary code and then reassembled back into original form at reception point. Copying — analog communication copies are quality wise not as good as their originals while due to error free digital communication, copies can be made indefinitely.
Digital technology has revolutionized the way most of the equipments work. Waves Denoted by sine waves Denoted by square waves Representation Uses continuous range of values to represent Uses discrete or discontinuous values to represent information Example Human voice in air, analog electronic devices.
Response to Noise Principles of digital and analog communications likely to get affected reducing accuracy Less affected since noise response are analog in nature Flexibility Analog hardware is not flexible. Best suited for Computing and digital electronics.
In digital technology, translation of information is into binary format zero or one where each bit is representative of two distinct amplitudes. Computer advancement has enabled use of error detection and error correction techniques to remove disturbances artificially from digital signals and improve quality.
Digital hardware is flexible in implementation. Synchronization — digital communication uses specific synchronization sequences for determining synchronization. 247 April 11, 2011, 10:23pm this is good. Memory Stored in the form of wave signal Stored in the form of binary bit Power Analog instrument draws large power Digital instrument drawS only negligible power Cost Low cost and portable Cost is high and not easily portable Impedance Low High order of 100 megaohm Errors Analog instruments usually have a scale which is cramped at lower end and give considerable observational errors.
118 June 3, 2014, 5:07am Good content — 42.