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Tag: Basics

A digital signal and its underlying continuous waveform
February 27, 2022 Wireless/SDR

Why Digital Communication is Superior to Analog Communication

At the beginning, the history of wireless communication revolved around analog communication systems for several decades. Amplitude Modulation (AM) and

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Width of a sinc signal increases and approaches a constant, just like an eagle spreading its wings
November 7, 2016 DSP

A Unit Impulse in Continuous-Time

This post treats the signals in continuous time which is different than the approach I adopted in my book which

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A DNA double helix
August 26, 2016 DSP

The Concept of Frequency

A wireless signal from one device to another travels through the use of electromagnetic waves propagated by an antenna. Electromagnetic

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Blocks of a simple binary communication system
August 21, 2016 Wireless/SDR

A Simple Communication System

"The fundamental problem of communication is that of reproducing at one point either exactly or approximately a message selected at

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Magnitude of frequency response |H[k]| in response to complex sinusoids at all N frequencies
August 12, 2016 DSP

System Characterization

In wireless communications and other applications of digital signal processing, we often want to modify a generated or acquired signal.

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Wireless Communications from the Ground Up - An SDR Perspective
Learn about wireless communications and SDR and 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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