He’s broken down the modulation and demodulation circuits into their basic op-amp stages with examples of what the signal should look like on a scope after each stage. That’s the beauty here.

This repository contains a MATLAB simulation of Fast Orthogonal Frequency Division Multiplexing with Index Modulation (Fast-OFDM-IM), a next-generation waveform combining Fast-OFDM and subcarrier ...

Carrier Signal Source (Vc): Generate a high-frequency carrier signal that will be modulated with the message signal. This could be a sinusoidal waveform. Square Law Modulator Circuit: Construct the ...

In the recent years, an expeditious growth in the demand for wireless communication applications has increased potential research being carried out in digital modulation techniques. GFSK modulation, a ...

This paper designs a frequency modulation (FM) transmitter for wireless communication systems, focusing on the design and implementation of the carrier oscillator circuit, high-frequency power ...