June 18, 2020 On a cold morning in August 2015, I narrowly missed a train to my office in Melbourne
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How Automatic Gain Control (AGC) Works
Alfred North Whitehead said, "Civilization advances by extending the number of important operations which we can perform without thinking of
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Design of a Discrete-Time Differentiator
Many signal processing algorithms require computation of the derivative of a signal in real-time. Some of the examples are timing
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Noise is Not Always the Enemy
Noise is usually considered the main enemy in all DSP applications. As David Tse once said: “Noise is the reason
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Top 5 Software Defined Radios (SDR) for RF Experimentation
In this article, I describe 5 of the most popular SDRs available for RF experimentation today. As a 6th member
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Direct Conversion (Zero-IF) Receiver
The frontend of the transceiver plays a crucial role in determining the ultimate system performance. In a previous article, we
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