Digital signals allow error-correction to be encoded into the signal thus ensuring high-quality transmissions over a much greater distance than would be possible with analog transmissions.
Digital signals have a much higher rate of transmission, with fibre optic providing the optimum transmission rate.
Digital signals use less bandwidth, thus allowing a greater number of independent transmission channels over a given band of frequencies with no cross-talk between channels.
Digital signals can interleave audio, video and data in the same signal. This is what makes it possible to access the internet through your telephone line and make voice calls at the same time.
Digital signals are easier to encrypt.
1...because interference is essentially analog.
2...Digital signals are sent in packets of something like 128 bytes, and they contain integrity check devices like parity bits, checksums, hashcodes. If any of these fail, the receiver rejects the packet and requests a resend.
Satellite up and down links use variable power transmitters, and they back off the Tx power until a specific bit error rate (BER) is achieved in order to keep the amount of radiation sloshing around to a minimum.
It is not, but digital signal is less prone to distortion, as it has only a limited set of possible values (often it two).
When you convert digital signal to analog, it is called as an analog signal. The device used is called digital to analog converter.
An analog-to-digital converter is a device which converts an infinite resolution analog signal to a finite resolution digital signal.
Digital signal processing is the best compared to analog signal. It is because the digital signal is moreefficienterror freeimmune to noisethan an analog signal
1. Digital Signal is non-continuous signal where as analog is continuous signal 2. Digital signal contain only two value that is 0 or 1,or high or low where as analog contain all the values in it's time interval 3.Chance of attenuation in analog is more then digital signal
transducer convert one energy to other energy .now in analog transducer it convert energy use of analog signal and digital it converts use og digital signal
An DAC convert digital signal to analog signal i.e Digital to Analog Converter. An ADC convert analog signal to digital signal i.e Analog to Digital Converter.
Set top box is basically used to convert the digital signals broadcasted by digital signal broadcasters to analog signals, in case you wish to have your analog tv, but would like to have an access to digital channels. Digital channels definitely have better quality signals than analog and therefore you will have a better picture quality and signal quality even though you have converted the digital signals to analog.
When you convert digital signal to analog, it is called as an analog signal. The device used is called digital to analog converter.
There are four possible combinations of encoding techniques -Digital data, digital signal -Digital data, analog signal -Analog data, digital signal -Analog data, analog signal
The basic elements in digital signal processing are an analog to digital converter, digital signal processor, and digital to analog converter. This process can take an analog input signal, convert it to digital for processing and offer an analog output.
where an analog signal is to be converted into digital signal,because in some applications we need digital signal where we have analog signal that is we use an A/D converter
An analog-to-digital converter is a device which converts an infinite resolution analog signal to a finite resolution digital signal.
by analog to digital,digital to analog signal
I'm not sure if you are speaking of a specific instance.... However, a digital signal is a binary representation of the analog signal. The analog signal is constantly measured and the amplitude (voltage at the time of sample) of the analog signal is converted to a binary number at specific intervals (the frequency of the sample rate). The higher the frequency of the sample rate, the more accurate the representation of the analog signal.
The basic difference is that in analog modulation the modulating signal is analog signal and in digital modulation it is in digital form.
An analog-to-digital converter is a device which converts an infinite resolution analog signal to a finite resolution digital signal.
Digital signal processing is the best compared to analog signal. It is because the digital signal is moreefficienterror freeimmune to noisethan an analog signal