Power-spectral plots generated by frequency sweeps or fast Fourier transforms (FFTs) can show you a signal’s frequency content, but sometimes an FFT provides more detail than you need. If you design ...
The expanded availability of high-speed and very-high-speed ADCs and digital processing is making oversampling a practical architectural approach for broadband and RF systems. Semiconductor scaling ...
Figure 4. A snapshot, in time, of two complex numbers whose exponents, and thus their phase angles, change with time. The notion of negative frequency is often troubling to engineers who've spent so ...
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