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Modulation involves multiplying the input signal x(t) by a cosine with a frequency f2. Demodulation involves multiplying the modulated signal again by a cosine with a frequency f2, and then applying a low pass filter with cutoff frequency f2. The low pass filter removes the high frequency components centered about 2f2. Figure 19 Modulation
wave modulation Techniques. Analyze various continuous and pulse wave modulation and Demodulation Schemes. Estimate the performance of Analog Communication System in the presence of noise. Identify different Radio receivers and understand the concept of coding schemes in Information theory.
Aug 1, 2017 · This document discusses amplitude modulation (AM) as a type of modulation used to transmit information signals. Modulation involves varying a high frequency carrier signal by an information signal in order to transmit the information signal over long distances.
Jun 17, 2014 · The document provides an overview of communication systems and modulation techniques. It begins with an introduction to communication systems and discusses analogue modulation techniques including AM, FM, and PAM. It then covers sampling systems, principles of noise, pulse code modulation, and digital communication techniques like ASK, FSK, and ...
Jul 30, 2020 · It provides details on utilizing different wavelengths in optical fiber for various applications. This document discusses different types of modulation including amplitude modulation (AM), frequency modulation (FM), phase modulation (PM), and pulse width modulation (PWM).
Lecture Slides for Signals and Systems (Version: 2016-01-25) Michael D. Adams Department of Electrical and Computer Engineering University of Victoria Victoria, British Columbia, Canada For additional information and resources related to these lecture slides (including errata and the textbook associated with these slides), please visit:
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Calculate the modulation index and percentage of modulation of an AM signal, given the amplitudes of the carrier and modulating signals. Define overmodulation and explain how to alleviate its effects.
