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Showing results for tags 'signal analysis'.
Hello, I have created code to filter a signal and calculate its peaks. The code is doing perfectly good until..... the signal frequency gets lower (about 10 Hz). The problem is as shown in Peak detector VI. My code needs to execute under 100 ms. Because Peak detector VI takes to much time at low frequency, my program fails. My thinking: Peak detector does a quadratic fit on the points (maybe here hides the time problem ?). I already did FIR filtering, so quadratic fit is not needed? I have added the code for you all to test and use it if you want (try changing frequency at the top
Hi everyone, I have learnt a lot about LabVIEW programming from this website and this forum. However, this is my first post on the forum. So I have managed to get a signal, which is in time domain, with the amplitude in volts. It looks like the in the picture attached. The above signal is the raw signal, and the one below is a cropped section of the part of the above signal I am interested in. The increase in amplitude seen in the cropped section is an "echo" of the transmitted signal. The cropped signal starts again from time=0, but that can be taken care by simply adding the time, a