Hi,
I have a phase lead problem using Sample Compression Express VI.
This is what I want to do.
I am performing data acquisition at 1kHz, which means that I will have 1000 samples every second. I also filtered the signal using a low pass filter. However, for my application, I would like to reduce the number of samples that I record to about 100 samples a second without aliasing. So I use the Sample Compression VI with the mean option selected and a reduction factor of 10. Unfortunately, the output signal seems to be in front or lead the signal from the DAQ Assistant and the filtered signal. So on the waveform chart, sweeping from left to right, I see the reduced signal first then, the filtered signal and then signal from the DAQAssistant.
I don't know what is going on here. Suggestions would be greatly appreciated. Thanks in advance.
Ming.
