The process of changing one of the characteristics of an analog signal based on the information in digital data is called digital-to-analog conversion. It is also called modulation of a digital signal. The baseband digital signal representing the digital data modulates the carrier to create a broadband analog signal.
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- A method for representing digital data analog signals by changing the phase of the analog carrier to represent the digital information is known as PSK explain?The transmission of data makes use of both periodic analog signals and non-periodic digital signals; why is this the case?Baseband transmission of a digital signal is possible only if we have a ____ channel.
- A digital signal is a composite analog signal with Infinite bandwidth why?For the following stream of digital signal which is being transmitted by bit rate 5 Kbps: 101100000000110 a) Draw the waveform for all line codes you studied. b) Determine if the line code is self synchronized or not. c) Determine if the code can be used with ac coupling or not d) Determine the Bandwidth of the line code e) Which code is used in magnetic recording f) Which code is used in LANNow suppose you have a composite signal (composed of many frequencies). If the frequencies range from 50 Hz to 600 Hz, what is the (analog) bandwidth?
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