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Tag: Nyquist pulse

Square-root Nyquist filters for three different excess bandwidths
September 16, 2017 DSP / Wireless/SDR

How to Design Nyquist and Square-Root Nyquist Pulse Shaping Filters

The radio spectrum is a very precious resource like real estate and must be utilized judiciously. Pulse shaping filters control

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A general QAM detector with respective waveforms at each block
October 7, 2016 Wireless/SDR

Quadrature Amplitude Modulation (QAM)

Quadrature Amplitude Modulation (QAM) is a spectrally efficient modulation scheme used in most of the high-speed wireless networks today. We

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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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Illustration of peak ISI and asymmetry about -3dB point
July 18, 2016 DSP / Wireless/SDR

Pulse Shaping Filter

From the previous articles, we have seen how a Tx generates a signal from the numbers and the Rx recovers

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5G Physical Layer - An Easy Guide to Key Technologies
Learn about 5G physical layer through great visualizations, simple maths and intuitive explanations
A wireless channel with speakers and microphone
Send and receive wireless signals over the air without expensive SDR hardware through a speaker (Tx) and a microphone (Rx)

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