Since the release of NI LabVIEW 8.5 software, the new fixed-point numeric data type has opened up an entirely new world of possibilities for signal processing in LabVIEW FPGA. The most recent example ...

With his project, a 3-axis Open Source FFT Spectrum Analyzer he is not only entering the Hackaday Prize 2016 but also the highly contested field of acoustic defect recognition.

The FFT setup showing the main FFT settings for this example. The FFT tab of the math function F1 has the main FFT settings and issetup to display the power spectrum. Since the signal was indicated ...

This allows users to increase the record length of the FFT, which improves the frequency-spectrum estimate. Longer record lengths also provide finer frequency resolution and better dynamic range.

[Simon Inns] just rolled out his latest project, a PIC based spectrum analyzer. He’s using a Fast Fourier Transform routine crafted in C to run as efficiently as possible on the 8-bit chip. T… ...

When evaluating the dynamic performance of precision ADCs using FFT analysis, coherent sampling provides the best results. In cases where coherent sampling cannot be achieved, a window function ...