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Tag: Pulse Amplitude Modulation (PAM)

All symbol intervals are overlayed on top of one another and the time axis is shifted to bring ideal sampling instant in the middle. Eye diagram generated for 250 2-PAM symbols and Square-Root Raised Cosine pulse with excess bandwidth 0.5
August 21, 2016 DSP

Tools for Signal Diagnosis

In this article, we will devise some tools that help us diagnose problems with the communication system under study. I

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Wired and wireless channels
August 14, 2016 Wireless/SDR

Modulation – From Numbers to Signals

The purpose of digital communications is to send digital data across a channel which can be wireless telephone lines coaxial

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Square-Root Raised Cosine (SR-RC) spectrum with different excess bandwidths
August 7, 2016 Wireless/SDR

Modulation Bandwidths

From the article on pulse shaping, we can correctly determine the occupied bandwidth for each modulation scheme where the Square-Root

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Block diagram of a 4 symbol communication system
August 1, 2016 Wireless/SDR

Packing More Bits in One Symbol

Note that digital electronics are constrained to work on only two levels by electronic switches which in the simplest case

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Block diagram of a pulse amplitude modulator and demodulator
July 24, 2016 Wireless/SDR

Pulse Amplitude Modulation (PAM)

In the article on modulation – from numbers to signals, we said that the Pulse Amplitude Modulation (PAM) is an

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