Howtosignalprocessing
m(t) = Am cos (2*pi*fm*t), Am=3, fm=5 Hz, t=time. Equation 2 represents the carrier wave which is just another sinusoidal wave function.
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Modulation Techniques:
| Case | Percentage of Modulation |
|---|---|
| |Ka*m(t)| < 1 or =1 for all t | less than or equal to 100 % |
| |Ka*m(t)| >1 for some t | in excess of 100% |
- How do you find the modulating signal?
- What is modulating a signal?
- What is modulating signal frequency?
- What is modulation index formula?
How do you find the modulating signal?
The equation for the overall modulated signal is obtained by multiplying the carrier and the modulating signal together. The constant A is required as it represents the amplitude of the waveform. Note also that the sidebands are separated from the carrier by a frequency equal to that of the tone.
What is modulating a signal?
Modulation is defined as the process of superimposing a low-frequency signal on a high-frequency carrier signal. Or. The process of varying the RF carrier wave in accordance with the information in a low-frequency signal.
What is modulating signal frequency?
Frequency modulation is a technique or a process of encoding information on a particular signal (analogue or digital) by varying the carrier wave frequency in accordance with the frequency of the modulating signal.
What is modulation index formula?
Modulation index is also known as modulation depth is defined for the carrier wave to describe the modulated variable of the carrier signal varying with respect to its unmodulated level. It is represented as follows: μ = A m A c.
