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Published in:
2014 | OriginalPaper | Chapter
4. RF Sampling and Signal Processing
Authors : Bodhisatwa Sadhu, Ramesh Harjani
Published in: Cognitive Radio Receiver Front-Ends
Publisher: Springer New York
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Abstract
As seen in Fig. 2.12 in Chap. 2, this spectrum sensing architecture uses an RF sampler followed by discrete time signal processing in the analog domain. Specifically, passive charge domain computations are utilized for signal processing followed by digitization. For RF sampled processors, the RF sampler has historically remained a substantial bottle-neck. However, with technology scaling and subsequent improvement in switch performance, RF sampling has become a possibility in modern silicon processes.