How signals navigate the constraints of bandwidth and frequency
In short: This lecture from MIT explores the fundamental mechanics of modulation and demodulation, demonstrating how information is transmitted across different types of communication channels.
Instructor George Vergames examines the frequency response's phase characteristics and provides a mathematical derivation of the Discrete-Time Fourier Transform (DTFT) for a rectangular pulse. The session uses the practical example of transmitting a pulse through both low-pass and bandpass channels to illustrate the essential processes of modulation and demodulation.
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- Summary by Intellect · source: 15. Modulation/demodulation
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