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GNU radio uses ____ for baseband processing.

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GNU radio uses ____ for baseband processing.

(a) DSP

(b) GPP

(c) FPGA

(d) ASIC

The question was posed to me during an online interview.

This question is from Software Architecture topic in portion Software Defined Radio Architecture of Cognitive Radio

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The correct choice is (b) GPP

Best explanation: GNU radio uses general purpose processor for baseband processing. This confines the signal processing capabilities to one particular processor. It is one of limitations of using GNU radio.

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