Efficient way to reduce noise from load cell data DAQ?
조회 수: 17(최근 30일)
I use DAQ to get data from Loadcell. However, the signal wave have many unnecessary waves (picture 1). I want to reduce those waves, just keep the peak wave (it show the load from the hammer) look like picture 2. I has tried to use filter function, but not working. What should I do to solve it.
Thank you very much.
Star Strider 2016년 6월 20일
The easiest way would be to use a low-pass filter, band-pass filter (if you want to remove a d-c offset), or a notch filter to filter out the high-frequency noise. There are many ways to design filters in MATLAB, including designfilt, firls, and others. My usual procedure for IIR filters is here: How to design a lowpass filter for ocean wave data in Matlab?
If you provide a sample of your data, I may be able to help you design your filter. I will need a vector of sample times as well as your signal vector.