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We can use this formula for calculating modulation index value, when the maximum and minimum amplitudes of the modulated wave are known. Let A max and A min be the maximum and minimum amplitudes of the modulated wave. We will get the maximum amplitude of the modulated wave, when cos(2πfmt) is 1.
In analog modulation technique, if the amplitude or duration or position of a pulse is varied in accordance with the instantaneous values of the baseband modulating signal, then such a technique is called as Pulse Amplitude Modulation (PAM) or Pulse Duration/Width Modulation (PDM/PWM), or Pulse Position Modulation (PPM).
In this chapter, let us solve a few problems based on the concept of amplitude modulation. Problem 1. A modulating signal m(t) = 10cos(2π × 103t) is amplitude modulated with a carrier signal c(t) = 50cos(2π × 105t). Find the modulation index, the carrier power, and the power required for transmitting AM wave. Solution.
Amplitude ModulationWatch more Videos at https://www.tutorialspoint.com/videotutorials/index.htmLecture By: Mr. Arnab Chakraborty, Tutorials Point India Priv...
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May 15, 2024 · Amplitude modulation is a modulation technique employed in electronic communication and modifies the carrier wave’s amplitude (signal intensity) in accordance to the message signal, such as an audio signal i.e. a modulating signal.
Amplitude ModulationLecture By: Mr. Pradeep Kshetrapal, Tutorials Point India Private Limited.
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Amplitude Modulation is a technique by which amplitude of the carrier wave is changed according to the signal wave or modulating signal. Among various modulation schemes, amplitude modulation is the simplest and oldest modulation technique.
