Using Time Gated Fast Fourier Transforms for Mixed Domain Test
應用說明
For many cases, the ability to debug in both the time domain and the frequency domain can be valuable. In the cases where you want to debug multiple places on a board, time correlation between these signals can be very important; however it can also be a challenge when using multiple test instruments. Another problem faced while making mixed domain measurements is the ability to look at frequency changes over time. Most oscilloscopes are useful measurement tools to look at both the time and frequency domain because of their Fast Fourier Transform capabilities, but Keysight’s InfiniiVision 3000T and 4000 X-Series oscilloscope’s time-gated FFT’s help you gain insight into your time and frequency domain signals at specified times.