#PCM import numpy as np import matplotlib.pyplot as plt # Parameters sampling_rate = 5000 # Sampling rate (samples per second) frequency = 50 # Frequency of the message signal (analog signal) duration ...
Fundamental continuous and discrete-time signals and their implementations using Matrix laboratory. Concepts include CTS, DTS, Amplitude modulation, Amplitude demodulation, Double sideband suppressed ...
Analog transmission is not particularly efficient. When the signal-to-noise ratio of an analog signal deteriorates due to attenuation, amplifying the signal also amplifies noise. Digital signals are ...
Abstract: For next-generation green communication systems, this article proposes an innovative communication system based on frequency-diverse array-multiple-input multiple-output (FDA-MIMO) ...
Radio frequency (RF) refers to the part of the electromagnetic spectrum where electromagnetic waves can be generated by alternating current fed to an antenna. It spans from around 3 kHz to 300 GHz. RF ...
Abstract: This paper introduces a novel reconfigurable intelligent surface (RIS)-aided wireless communication scheme, termed RIS code index modulation with quadrature ...
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