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What else can I help you with?
What type sensors produce a digital signal?
A simple on-off witch gives a digital signal. And the temperature / time sensor in my toaster. But most sensors and transducers actually produce an analog signal, which is then digitally conditioned. This conditioning is done because modern techniques allow quite large resolution (256 - bit resolution or better for example) to be developed. And one notable advantage of digital signal processing is that signal noise is largely eliminated.
What is different about the method used to boost digital signal strength compared to the method used to boost analog signal strength?
A digital signal requires a repeater, which retransmits the signal in its original form, and an analog signal requires an amplifier, which increases the strength of both the signal and the noise it has accumulated.
When a voice signal is converted into a digital signal do the ones and zeros of the digital signals represent letters?
well yes and no yes it Will represents letter but as a function of an ASCII code like digital 41 Will represents the letter A
Does A digital signal consists of a continuous electrical wave?
Digital signals are virtually always transmitted using a continuous (analog) waveform. Even a signal that is called "digital" is actually analog in practice. When a digital signal is transmitted over short range (inside an integrated circuit, on a computer motherboard, etc.) we talk about it being digital, but inspection of the actual waveform with an oscilloscope will reveal that it is not just two different voltage levels. But it is "mostly digital" and can be treated as such by circuit elements that are expecting digital signals. That is, we call it a "digital signal" but it isn't perfectly digital (two different values). It is actually theoretically impossible to transmit a pure digital signal. Doing so would require an infinite energy pulse to create the step functions. In practice, the limiter to making a signal that is almost perfectly digital tends to be the "load" and the transmission channel, which both have resistance, capacitance and inductance that make even a very abrupt signal smooth out a little. When digital signals are transmitted over relatively long distances, they are sometimes deliberately "encoded" onto an analog carrier. There are various methods for doing this, such as frequency modulation, amplitude modulation, phase modulation, or combinations. There can even be multiple layers of encoding to implement features such as error detection and error correction. So if you were to inspect the signal that is transmitted, you would see an obvious analog signal, but the information that is hidden in it is an encoded digital signal that will be re-formed at the receiver.
Why is digital technology preferred to analog technology in communications technology?
Why digital communications and what its advantages over analog communication ,first you have to know what is the difference between analog signal and digital signal. Analog signal analog signal is continuous time signal i.e. it has a value at any moment of time and it has infinite number of valus , such as dinusoidal signal ,you can substitute X with any value and you will have an value in Y in the follwing sin relation Y=sin(X). 1-Noise and destortion immunity:-when analog signal is transmitted in free space for long distances it will be distorted and no an ideal recovery done in receiver to recover the exact signal which transmitted ,but in digital communication digital signal consist of 2 levels only zero or one (not like the analog one , it has infinite numbers of values or levels at each period of time),so digital signal can be recovered easily and excactly like transmitted one. Hint : Device that used to pattially recover the analog signal after a certain distance is called repeater ,from its name it receives transmitted analog signal and filter it and amplify it and transmitt it),but in digital transmission it is different ,the device used for recovering digital signal which transmitted from acertain distance is called regenerative repeaters ,it receives transmitted digital signal and recover it to regenrate a new exact signal like received one then retransmitt it for further distance. 2-More privacy and security due to encryption. 3-Error detection techniques can be used and correction as well. 4-Easy for processing and applying multiplexing techniques. 5-Low cost. 6-Transmission rate can be changed easily. 7-Digital hardware implementation is flexible and permits the use of micrprocessors, digital switching elements and layer scale. Thanks for reading H.M.S
What is advantage of digital signal processing?
Digital is always preferred over analog for the following reasonsAccuracyImmune to noiseEasy error detection and correctionThe same is true for digital signal processing too.
What advantage do regenerative repeaters have when used for digital communication?
When any digital signal is transmitted over a pair of wires, it degrades in amplitude. Regenerative repeaters receives the incoming signal, extracts the clock, then regenerates the original signal as a clean digital square wave as if it was the original signal transmitted from the source. Thus the name repeater.
What are basic elements of digital signal processing?
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.
Explain the characteristics of a digital signal?
what are the characters of digital signal
Is flame detector an analog or digital signal?
digital signal
What is the expansion of Digital Signal Processing?
Digital Signal Processing
What is included in a cell phone to handle the compression of data for it to be transmitted to another phone?
digital signal processor
What converts a message from digital to analog and analog to digital?
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.
How do you convert digital signal to analogue signal?
There are several devices called digital to analog converters for this purpose. 1s and 0s of the digital signal are used to represent the digital signal in analog form.
What is encoding technique?
There are four possible combinations of encoding techniques -Digital data, digital signal -Digital data, analog signal -Analog data, digital signal -Analog data, analog signal
What type sensors produce a digital signal?
A simple on-off witch gives a digital signal. And the temperature / time sensor in my toaster. But most sensors and transducers actually produce an analog signal, which is then digitally conditioned. This conditioning is done because modern techniques allow quite large resolution (256 - bit resolution or better for example) to be developed. And one notable advantage of digital signal processing is that signal noise is largely eliminated.
Why doesn't a digital TV with a digital tuner get a digital picture?
The signal sent to the TV must be a digital signal as well.
