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As we know normal modulation is superimposing the wave with another carrier signal but the concept of velocity modulation is totally different, as The modulation in velocity of a beam of electrons or ions caused by passing the beam through a high-frequency electric field, as in a cavity resonator there is no concept of superimposition.
What else can I help you with?
How velocity modulation and density modulation related to each other?
due to velocity modulation density modulation occurs in TWT
Difference between velocity and current modulation in klystron?
Velocity modulation in a klystron involves the interaction between the electron beam's velocity and the RF field to produce amplification. Current modulation, on the other hand, involves varying the electron beam's current to control the amplification of the RF signal. In summary, velocity modulation affects the electron beam's speed, while current modulation affects the electron beam's density in a klystron.
Amplitude modulation and frequency modulation range in India?
Normal frequency range for amplitude modulation is 550kHz to 1610kHz
What are the microwave tubes is based on the principal of velocity modulation?
The klystron and the traveling wave tube (TWT) are two types of microwave tubes based on the principle of velocity modulation. In these tubes, the electron beam's velocity is modulated by an external signal, leading to the amplification of microwave signals. These tubes are commonly used in radar systems, satellite communications, and other high-power microwave applications.
What is velocity modulation in klystron?
As we know in klystron tube drift space is assumed to be free of any electric field. Therefore, the high velocity electron emerging in the later period are able to overtake the low velocity electrons leaving the buncher grids. As a result of these actions, the electrons gradually bunch together as they travel down the drift space. This mechanism of variation in electron velocity in the drift space is known as velocity modulation.
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.
How is analog modulation different from digital modulation?
i refered modulation is the sequence of message in to analog symbol( Simon haykin ,communication systems),,but i am not clear with this,couul u pls clarify?
What is velocity modulation theory?
Velocity modulation theory is a concept in electronics and solid-state physics that describes the process by which an electron beam's velocity is modulated to generate microwave or radio frequency signals. This theory is commonly used in devices such as traveling-wave tubes and magnetrons for various applications, including amplification and communication. By modulating the electrons' velocity, it can be used to produce electromagnetic waves with specific frequencies.
What do the letters FM on your radio stand for?
They could mean a lot of things, but in the context of each other they probably stand for Amplitude Modulation and Frequency Modulation (two different methods for sending an audio signal using radio waves) respectively.
Why you do velocity analysis?
velocity analysis is done to check the velocity of different links moving with respect to different links.
What are the different versions of AM modulation using diagrams?
This site does not use diagrams.
Is escape velocity same for all objects?
Yes. It is different for different planets etc. Escape velocity on earth is different than escape velocity on Jupiter.
