June 18, 2020 On a cold morning in August 2015, I narrowly missed a train to my office in Melbourne
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A Beginner’s Guide to OFDM
In the recent past, high data rate wireless communications is often considered synonymous to an Orthogonal Frequency Division Multiplexing (OFDM)
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Cascaded Integrator Comb (CIC) Filters – A Staircase of DSP
In olden days, people used to have lots of kids. A famous Urdu satirist once wrote: "It has been observed
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The Heterodyne Principle and the Superheterodyne Receiver
During World War I, Edwin Howard Armstrong invented the superheterodyne Rx as an alternative to the Tuned Radio Frequency (TRF)
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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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Effect of a Sampling Clock Offset on an OFDM Waveform
In an earlier article on the impact of a sampling clock offset on a single-carrier waveform, we explained the nature
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Spectral Shift without any Multiplications
One of the great advantages of Digital Signal Processing (DSP) is an unexpected simplification of operations in seemingly complicated scenarios.
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