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There are many types of modulation. A few examples...
- Amplitude
- Frequency
- Phase Shift
- Modified Frequency (MFM)
- Non Return to Zero Inverted (NRZI)
- Frequency Shift Keying (FSK)
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Wiki User
∙ 14y ago
Wiki User
∙ 11y ago- amplitude
- frequency
- phase
- pulse position
- pulse amplitude
- pulse width
- pulse code
- single sideband
- vestigial sideband
- etc.
sometimes two or more types may be combined. e.g. quadrature amplitude modulation is a combination of phase & amplitude modulations.
Wiki User
∙ 9y agoModulation may be defined as the process by which some characteristics of a signal called carrier is varied accordance with the instantaneous value of another signal called modulating signal. Types of Modulation: 1) Continuous Wave Modulation: ANALOG: AM, FM, PM DIGITAL : ASK, FSK, PSK 2) Pulse Modulation : ANALOG: PAM, PDM, PPM DIGITAL : PCM
Wiki User
∙ 12y agoWell there are too many to name, a modulation could be a mix of amplifiers to create something new, but for some example a power amplifer is one, and a high frequency amplifier is another.
Wiki User
∙ 14y agoThe PAM are of two types : Double-polarity PAM and Single - polarity PAM
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How does quadrature amplitude modulation works?
QAM is a combination of phase modulation & amplitude modulation.
What is amplitude modulation derive expression for am wave and modulation index?
the maximum amplitude of carrier wave varied with respect to instantaneous values of message signal is called amplitude modulation
What is Am modulation?
AM imply amplitude modulation of a carrier signal
Why is amplitude modulation susceptible to noise but not frequency modulation?
because noise usually changes the amplitude not frequency.
What type of modulation produces pulses whose duration is proportional to the amplitude of the intelligence signal?
Pulse-Amplitude Modulation
What does AM and FM stand for in radios?
AM - Amplitude Modulation FM - Frequency Modulation
How does quadrature amplitude modulation works?
QAM is a combination of phase modulation & amplitude modulation.
What is depth of modulation?
In amplitude modulation, modulation depth refers to the ratio of the unmodulated carrier amplitude to the amplitude deviation for which the modulated carrier wave reaches its minimum value. If this minimum value is zero, the modulation depth is 100%.For amplitude modulation,modulation depth = (a-b)/(a+b),wherea is the unmodulated carrier amplitude, andb is the minimum amplitude deviation.The modulation depth ratio is also referred to as the modulation index.
Multiple choice question answer of AM modulation?
amplitude modulation is where we modulate our signal with a carrier signal amplitude changes but frequency remains constant in amplitude modulation
What are the advantages frequency modulation amplitude modulation?
Frequency modulation have some advantages over amplitude modulation, FM is not sensitive to the amplitude noise, and have high efficient use of transmitted power
Amplitude modulation and frequency modulation range in India?
Normal frequency range for amplitude modulation is 550kHz to 1610kHz
What is modulated depth?
In amplitude modulation, modulation depth refers to the ratio of the unmodulated carrier amplitude to the amplitude deviation for which the modulated carrier wave reaches its minimum value. If this minimum value is zero, the modulation depth is 100%.For amplitude modulation,modulation depth = (a-b)/(a+b),wherea is the unmodulated carrier amplitude, andb is the minimum amplitude deviation.The modulation depth ratio is also referred to as the modulation index.
What is amplitude modulation?
Amplitude modulation is a method of sending information by modifying the intensity of a carrier wave.
What is amplitude modulation derive expression for am wave and modulation index?
the maximum amplitude of carrier wave varied with respect to instantaneous values of message signal is called amplitude modulation
What are FM and AM?
Amplitude Modulation (AM) Frequency Modulation (FM)
What is Am modulation?
AM imply amplitude modulation of a carrier signal
What is lowlevel amplitude modulation and highlevel amplitude modulation?
low level amplitude modulation occurs when the carrier signal is first modulated and then amplified,whereas in high level modulation,the carrier signal is first amplified and then is modulated.
