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Implementation of Real-time Spectrum Analysis

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The keys to real-time spectrum analysis are to provide parallel sampling and FFT calculations so the data acquisition continues while the FFT’s are performed, and to provide fast enough DSP processing of FFT algorithms to keep up with the sample rate at the input. This white paper discusses the technical implementation of the real-time process in the Rohde & Schwarz real-time analyzers, and the applications for use of this analysis capability in the troubleshooting and test of modern designs.