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A comparison of the input to a symbol-spaced versus fractionally-spaced equalizer
May 2, 2022 Wireless/SDR

A Classification of Equalization Techniques

We have seen before how a wireless channel distorts the Rx signal. The main task of DSP/comms engineer is to

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Synchronization circuit for a Minimum Shift Keying (MSK) modem
April 25, 2022 Wireless/SDR

Carrier and Clock Synchronization in MSK Signals

Minimum Shift Keying (MSK) is a versatile and spectrally efficient digital modulation scheme. On this website, I have previously written

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Individual and cascade frequency responses as well as group delays of the IIR and all-pass filters combination
February 26, 2023 DSP

FIR vs IIR Filters – A Practical Comparison

When it comes to practical applications, digital filter design is one of the most important topics in digital signal processing.

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Multiple paths arriving at the Rx with different strengths and delays
May 9, 2022 Localization

Carrier Phase-Based Ranging in Indoor Multipath Channels

Indoor positioning is one of the core technologies behind the idea of Internet of Things (IoT). Some of the use

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A composite channel model consisting of a pulse shaping filter, baseband channel and a matched filter
April 18, 2022 Wireless/SDR

Channel Estimation in Wireless Communication

Channel estimation is a special case of the system identification problem that has a long history in the field of

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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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