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There are 3 main types of digital pulse modulation:
- Pulse time modulation (PTM), somewhat similar to analog phase modulation.
- Pulse width modulation (PWM), the width of the pulse represents the signal.
- Pulse code modulation (PCM), serial transmission of binary bits forming numeric or character codes that represent the signal.
All of these can be modulated on an RF carrier using any of the standard modulation techniques: AM, FM, Phase Modulation, etc. One advantage with AM digital pulse modulation techniques over AM analog is that the carrier can be 100% modulated, which cannot be done with analog, thereby allowing significant reductions in transmitter power without loss of coverage range. Sometimes FM digital pulse modulation techniques are referred to as Frequency Shift Keying (FSK). A very complex method of combining Phase Modulation and AM to increase the bit density of digital pulse modulation on an RF carrier is called Quadrature Amplitude Modulation (QAM).
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Advantages of hybrid modulation over digital modulation?
presentation of analog digital hybrid modulation
What are the advantages of digital modulation over analog modulation?
1)digital modulation can easily detect and correct the noise. where as analog modulation has little complexity 2)security is more in digital modulation 3)digital modulated signal can traverse a long distance compared to analog modulation
What are the Advantage of digital modulation over analog modulation?
1)digital modulation can easily detect and correct the noise. where as analog modulation has little complexity 2)security is more in digital modulation 3)digital modulated signal can traverse a long distance compared to analog modulation
How to Generate digital data for bpsk modulation?
How to Generate digital data for bpsk modulation?
What is the difference between analog and digital modulation Does it depends on baseband signal?
The basic difference is that in analog modulation the modulating signal is analog signal and in digital modulation it is in digital form.
Difference between digital transmission and digital modulation?
The Difference of two is only first digital has a transmission and second digital has modulation.....thats all....i think that's too clear ha...
What has the author Gordon Drury written?
Gordon Drury has written: 'Coding and modulation for digital television' -- subject(s): Digital modulation, Multiplexing, Digital television, Coding theory
Need of demodulation?
Demodulation is needed with modulation becoz modulation it is converting analog to digital signal n we can't understand digital. That's why we require digital to analog converter or demodulator.
What is analog-digital hybrid modulation?
—Analog digital hybrid modulation seeks the ways to eliminate the incoherent quantization noise component in digital communication, instead of conveniently making it minimal.
What has the author Kamilo Feher written?
Kamilo Feher has written: 'Digital modulation techniques in an interference environment' -- subject(s): Digital modulation, Digital techniques, Radio noise, Signal processing
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 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.
