I've been using a Butterworth high pass filter to correct the low frequency distortion of an acceleration waveform integrated to a velocity waveform. I throw out a small number of the first data points of the velocity waveform due to the filter settling time.
Is it acceptable or even possible to wrap the filter back around to the beginning and process those 'settling' points as well so I don't have to throw out any data?
Maybe you can reverse the direction of the filter when you hit your known settling point and process back to the beginning then reverse again and go all the way to the end?
I'm not sure if this is an obvious or appropriate question, I have no background in DSP.