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Modulation is only required if the data is being sent over a radio wave, or a laser beam.
And even in the case of a laser, if you are content with on/off data streams, then there is no underlying signal to be modulated.
Essentially all of the data whizzing round in your computer is doing so without the benefit(?) of a carrier - the wires are sufficient.
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How to Generate digital data for bpsk modulation?
How to Generate digital data for bpsk modulation?
What is delta modulation?
Adaptive delta modulation is a analog-to-digital and digital-to-analog conversion technique which is primarily used for voice transmission data and can be used for multiple purposes.
What is adaptive modulation?
Adaptive delta modulation is a analog-to-digital and digital-to-analog conversion technique which is primarily used for voice transmission data and can be used for multiple purposes.
What is Adaptive delta modulation?
Adaptive delta modulation is a analog-to-digital and digital-to-analog conversion technique which is primarily used for voice transmission data and can be used for multiple purposes.
What has the author Irwin Lebow written?
Irwin Lebow has written: 'The digital connection' -- subject(s): Digital electronics, Popular works 'Understanding digital transmission and recording' -- subject(s): Digital modulation, Sound, Data transmission systems, Recording and reproducing, Digital techniques
What are the advantages of pulse position modulation?
Pulse position modulation offers high noise immunity, efficient use of bandwidth, and easy implementation with digital circuits. This modulation technique is particularly useful in applications requiring high data transmission rates and reliable communication in noisy environments.
What are the goals for digital modulation?
Simply put, digital modulation is designed to maximize the amount of data we can put through a system per unit of time while maintaining the integrity of that data. Those are the two primary goals.
What is the difference between the AM modulation and ASK modulation?
This is hard to explain. AM means amplitude modulation, while ASK is amplitude-shift keying. AM is usually analog as it is modulated based on the strength of the signal, though you can use it to send a digital signal. ASK represents digital data as variations in the amplitude of a carrier wave. Any digital modulation technique will represent the data using a finite number of different signals. While AM is used mostly for radio and television, ASK is used for telegraph signals, transmission across telecommunications equipment, and fiber optics.
Difference between delta modulation and differential pulse code modulation?
Delta modulation is not a type of quality conversion and runs on digital-to-analog, analog-to-digital. Differential pulse code modulation has a higher quality of conversion and runs on a 1-bit data stream.
What is the alteration called when digital or analog signals are altered to represent binary data?
Modulation
Different types of signal encoding technique?
n Digital data, digital signal n Equipment less complex and expensive than digital-to-analog modulation equipment n Analog data, digital signal n Permits use of modern digital transmission and switching equipment n Digital data, analog signal n Some transmission media will only propagate analog signals n E.g., optical fiber and unguided media n Analog data, analog signal n Analog data in electrical form can be transmitted easily and cheaply
What is digital data transmission?
Digital data transmission use voltage differences to directly represent the 1s and 0s that make up the data and are not modulated over a carrier.
