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, and
b is the minimum amplitude deviation.
The modulation depth ratio is also referred to as the modulation index.
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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, and
b is the minimum amplitude deviation.
The modulation depth ratio is also referred to as the modulation index.
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There is no difference.
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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.
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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.
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The difference between pulse code modulation and delta modulation is that pulse code modulation is a method of encoding audio information digitally while delta modulation is a method that converts analog to digital signal.
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Depth of modulation refers to the extent to which a carrier signal is varied in response to an input signal during modulation. It is typically expressed as a percentage and indicates how much the amplitude, frequency, or phase of the carrier signal is altered. A depth of modulation of 100% means the carrier signal is fully modulated, while lower percentages indicate lesser degrees of modulation. This concept is crucial in communications, as it affects the quality and efficiency of signal transmission.
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The basic difference is that in analog modulation the modulating signal is analog signal and in digital modulation it is in digital form.
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The depth of modulation index refers to the extent to which a carrier signal is varied by a modulating signal in amplitude modulation (AM). It is typically expressed as a percentage and indicates how much the amplitude of the carrier wave changes in response to the modulating signal. A modulation index of 100% means full modulation, where the carrier's amplitude varies completely with the modulating signal. Values above 100% can lead to distortion and over-modulation, impacting the quality of the transmitted signal.
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When the modulation index is expressed as a percentage, it is commonly referred to as the "percentage modulation." This representation indicates the extent of modulation in relation to the carrier signal, showing how much the amplitude of the carrier varies due to the modulating signal. It provides a clearer understanding of modulation depth for practical applications in communication systems.
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Delta modulation is not a type of quality conversion and runs on digital-to-analog, analog-to-digital. Differential pulse code modulation has a higher quality of conversion and runs on a 1-bit data stream.
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Modulation Index is the ratio of the maximum deviation frequency to the frequency of modulation. In other words it is the ratio of the spread in frequency spectrum to the frequency that was used to modulate the carrier.
For FM,
modulation index is given by the formula
mf= df/f
where,
mf=modulation index for FM
df=difference in carrier frequency
f=frequency of the signal
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AM stands for amplitude modulation, while FM stands for frequency modulation.
In AM, the amplitude (the height or depth of the crests or troughs) changes, while in FM, the frequency changes.
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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...
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delta modulation refers to the procedure of encoding and thereby transmitting only the difference between consecutive samples instead of sending each of the samples themselves. This method is useful only when the vaiation in the amplitude of the signal is small, otherwise, it leads to a phenomenon called "slope overload".
Pulse code modulation is the procedure where each of the levels of an analog signal is assigned a value closest ro a quantizer level used to quantize the signal...
Another method of PCM that can be confused with Delta Modulation is the D(ifferential)PCM. Here, the difference between the signals is encoded based on its magnitude..
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No, mixing is adding two signals together, modulation is more like multiplying two signals. IN mixing, the result has the same frequencies as the input signals. In modulation, the result is the sum and difference frequencies.
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To find the difference between the initial and final depth of water is to subtract the final depth by the initial depth. The initial depth of what is what the water depth starts at and the final depth is the depth of the water once it is finished filling up.
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A: AM radio is an Amplitude Modulation transmission . Meaning it has fix frequency but it is modulated by the signal.
FM Frequency Modulation the frequency is modulated by the signal
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The most fundamental difference, I would say, is that Amplitude Modulation (AM) is a kind of Analog Modulation Technique (the modulation is applied continuously in response to the analog information signal) where Amplitude Shift Keying is a type of Digital Modulation Technique ( an analog carrier signal is modulated by a discrete signal, digital modulation methods can be considered as digital-to-analog conversion, and the corresponding demodulation or detection as analog-to-digital conversion. The changes in the carrier signal are chosen from a finite number of M alternative symbols).
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length signifies how long the object is while depth signifies the deepness or height of the object .there is no difference in depth and height of an object
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Well modulation is just simply moduling something into shape but mixing is just turn the mixture round and round till it is all squashed together.
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AM - Amplitude Modulation FM - Frequency Modulation
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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.
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Some popular guitar modulation effects used in modern music production include chorus, flanger, phaser, and tremolo. These effects can add depth, movement, and texture to the guitar sound.
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Modulation in music theory refers to changing the key within a piece of music, while a key change specifically refers to shifting to a new key.
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Liquid pressure depends on depth. It can be calculated from liquid density times depth.
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In modulation u r sending two signals but their frequencies are sum or difference of carrier frequency and signal frequency.In addition u send two signals at two different frequencies so more interference.
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frequency modulation..
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due to velocity modulation density modulation occurs in TWT
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In Frequency Modulation (FM), if the modulation frequency is doubled, the modulation index does not necessarily double; it depends on the amplitude of the modulating signal. In Amplitude Modulation (AM), the modulation index is defined as the ratio of the peak amplitude of the modulating signal to the carrier amplitude, so it remains unchanged with varying modulation frequency. For Phase Modulation (PM), similar to FM, the modulation index is influenced by the amplitude of the modulating signal and does not inherently double with the modulation frequency. Thus, modulation frequency and modulation index are not directly linked in this way for FM, PM, or AM.
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the modulation system is of FM
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i dont know ans. of this.
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Frequency modulation Phase modulation
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QAM is a combination of phase modulation & amplitude modulation.
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In music theory, a key change refers to a shift to a different key within a piece of music, while modulation involves a more gradual transition between keys.
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fc>2fm
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Collector modulation is the amplitude modulation in which modulator varies the collector voltage of a transistor.
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presentation of analog digital hybrid modulation
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angle modulation is called non linear modulation because the information is stored in phase of the carrier signal
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The range of modulation index in amplitude modulation (AM) is typically between 0 and 1. A modulation index of 0 indicates no modulation, while a modulation index of 1 represents full modulation where the carrier signal amplitude varies from zero to peak value.
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FM means frequency modulation AM means amplitude modulation
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It signals the difference between successive sample sizes
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a measure of the degree of frequency modulation expressed numerically for a pure tone modulation as the ratio of the frequency deviation to the frequency of the modulating signal.
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