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Category: Wireless/SDR

Wireless communications and Software Defined Radio (SDR)

Spectrum of the Nyquist pulse and its symbol rate shifted version exhibit a spectral null at 0.5 symbol rate for a 0.5 timing offset
April 11, 2022 Wireless/SDR

Why the Performance of an Equalizer Depends on Symbol Timing Phase

This post is written on an advanced topic mainly for practitioners and researchers in the design of wireless systems. For

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Multiple stable lock points in the S-curve of a decision-directed loop
April 4, 2022 Wireless/SDR

Resolving Phase Ambiguity through Unique Word and Differential Encoding and Decoding

In the context of carrier synchronization, we have discussed the Costas loop and other techniques before. Today, we discuss the

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The effect of symbol timing offset on an OFDM symbol
March 28, 2022 Wireless/SDR

Effect of Timing Mismatch in OFDM Systems

Timing synchronization is one of the most fascinating topics in the field of digital communications. The impact of symbol timing

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Converging towards angle 30
February 7, 2022 Wireless/SDR

Coordinate Rotation Digital Computer (CoRDiC)

In other articles on this website, we have seen various algorithms for building digital and wireless communication systems. A common

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A description of a real space-time code
March 8, 2021 Wireless/SDR

Understanding Space-Time Codes: Alamouti Scheme

In major cellular and wireless networks today, space diversity is employed with the help of multiple Tx antennas and/or multiple

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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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