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What is the unit for modulation index?
Modulation index is also called as Modulation depth. The modulation index of a modulation scheme describes by how much the modulated variable of the carrier signal varies around its unmodulated level.
How velocity modulation and density modulation related to each other?
due to velocity modulation density modulation occurs in TWT
What are the advantages and disadvantages of phase modulation?
Advantage - 1. Phase modulation & demodulation is easy compared to Frequency modulation. 2. Phase modulator is used in determining velocity of moving target by extracting Doppler information. Doppler information needs stable carrier which is possible in phase modulation but not in frequency modulation. Disadvantage - 1. Phase ambiguity comes if we exceed its modulation index pi radian(180 degree). 2. we need frequency multiplier to increase phase modulation index. Visit my website http://harshit.org
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
Why is angular modulation called exponential?
It is called angle modulation because it changes the angle of the carrier which is exponential, e.g. sin theta = {(e*j theta + e (-j theta)} / 2
Why is Angle Modulation called nonlinear modulation?
angle modulation is called non linear modulation because the information is stored in phase of the carrier signal
Why frequency modulation and phase modulation are called angle modulation?
i dont know ans. of this.
What are the two types of angle modulation?
Frequency Modulation and Phase Modulation
What is the difference between frequency modulation and phase modulation?
The difference between frequency modulation and phase modulation is that with frequency modulation the angular frequency of the signal is modified while with the phase modulation, the phase angle of the signal is modified.
The passing from one key center to another within a composition is called?
its called modulation.
What is the unit for modulation index?
Modulation index is also called as Modulation depth. The modulation index of a modulation scheme describes by how much the modulated variable of the carrier signal varies around its unmodulated level.
What is the gereral name given to both FM and pm?
The general name given to both Frequency Modulation (FM) and Phase Modulation (PM) is Angle Modulation. This term encompasses modulation techniques that vary the angle of a carrier wave to encode information, with FM varying the frequency and PM varying the phase of the wave. Both methods are widely used in communication systems for transmitting audio and data.
Comparison of amplitude modulation and frequency modulation?
Amplitude of the (high frequency) Carrier signal is varied with respect to low frequency of message signal is called amplitude modulation. Frequency of the carrier signal is varied with respect to low frequency of message signal is called frequency modulation.
What is changing amplitude or frequency called?
modulation
In modulation a simple wave called a?
carrier
What is frequency modulation detection?
as signals come in a means of extracting the original signal is required from the carrier frequency that process is called demodulation or modulation detection you called
