[geonet]: Bandpass Filtering

[skyhunter]

Hi everyone,   I was wondering if anyone can explain to me in simple terms why a bandpass filter tends to oscillate. For example, when applying a bandpass filter to a simple step function between 0 and 1, the resulting bandpass filter oscillates between very negative and very positive numbers in the vicinity of the step-up and step-down. Does anyone have any ideas of how to prevent or minimize these oscillations?     Aaron Balasch Sky Hunter Technologies Inc. Suite 101, 1725 10th Avenue S.W. Calgary, Alberta T3C 0K1 email: [EMAIL PROTECTED] phone: 403-228-2175 fax: 403-244-7955