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modulation
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∙ 14y ago
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Why do you use sigma delta modulation instead of adaptive delta modulation?
if we need simple transmitter and receiver, if we need low bandwidth
What is need of space vector pulse width modulation?
due to space vector modulation we can eliminate the lower order harmonics
Why amplitude modulation is called as collector modulation?
amplitude modulation using collector modulator gives:More symmetrical envelope• Higher power efficiency• Higher output power• Need higher amplitude modulatingsignal
Why do you need to do modulation?
In a radio system ... Modulation is applied to a carrier. If the carrier wasn't modulated it wouldn't carry any information other than that the transmitter was working. Not very useful. It is the modulation which contains the "information" which we want to send.
Why modualtion is need?
Without modulation, there's be no way to get any information onto a carrier signal. There are several different types of modulation schemes for radio carriers and almost as many different types demodulators to decode the information so that it can be converted into a usable form. For instance, AM (amplitude modulation), FM (frequency modulation), digital modulation, quadrature amplitude, etc.
What does AM and FM stand for in radios?
AM - Amplitude Modulation FM - Frequency Modulation
What are the two types of angle modulation?
Frequency Modulation and Phase Modulation
What is the need of delta modulation?
if you are talking about a plane then its to set new modes unpromising if you will
When modulation frequency is double the modulation index is halF and the modulating voltage remains constant the modulation system is?
frequency modulation..
How velocity modulation and density modulation related to each other?
due to velocity modulation density modulation occurs in TWT
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.
When modulation frequency is doubled the modulation index is halved and the modulating voltage remains constant the modulation system is?
the modulation system is of FM
