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Matlab Examples – Envelope Detection

Below is a video I posted at YouTube on Envelope Detection to Demodulate Amplitude Modulation (or Double Sideband Demodulation). Envelope detection can be modeled as a multiplication of a pulse train and the message followed by a low pass filter. Some of the links in the post above are “affiliate links.” This means if you [...] . . . → Read More: Matlab Examples – Envelope Detection

Matlab Examples – Amplitude Demodulation Using Envelope Detection

Another detection scheme is called envelope detection consisting of a simple diode and a low pass filter ( a parallel connection of a resistor and capacitor).The low pass filter gets rid of the higher frequencies coming out of the diode and to allow the low frequency message signal to pass through the filter. The detection [...] . . . → Read More: Matlab Examples – Amplitude Demodulation Using Envelope Detection

Matlab Examples – Amplitude Demodulation using Coherent Detection

My previous post talked about modulating the amplitude of the carrier to embed a message signal. The demo uses Simulink found in Matlab. Here, I will show how we can recover our transmitted message using synchronous detection (coherent or homodyne detection). Synchronous detection does not waste any energy in the carrier when there is no [...] . . . → Read More: Matlab Examples – Amplitude Demodulation using Coherent Detection