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Tag: Frequency Shift Keying (FSK)

An FM signal
December 8, 2022 DSP / Wireless/SDR

Frequency Modulation (FM) and Demodulation Using DSP Techniques

Frequency Modulation (FM) is as old as the history of wireless communications itself. The past few decades saw the rise

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A basic chirp with real and imaginary signals
October 3, 2022 Wireless/SDR

Understanding LoRa PHY (Long-Range Physical Layer)

LoRa PHY (Long-Range Physical Layer) is a very exciting communication technique based on Chirp Spread Spectrum (CSS) modulation mixed with

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Flowgraph output
April 2, 2020 Wireless/SDR

FSK Demodulation in GNU Radio

Frequency Modulation (FM) is one of the oldest communication techniques for high fidelity transmission. Its digital counterpart, Frequency Shift Keying

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DTMF spectrum for key 6
August 15, 2022 DSP

How to Generate and Detect Dual Tone Multi-Frequency (DTMF) Signals

In the early days of telephone, you could not call anyone directly. Instead, a telephone operator used to sit on

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MSK as a special case of both non-linear and linear modulation schemes
January 25, 2017 Wireless/SDR

Minimum Shift Keying (MSK) – A Tutorial

Minimum Shift Keying (MSK) is one of the most spectrally efficient modulation schemes available. Due to its constant envelope, it

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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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