Linear phase low pass filter

Details Linear phase low pass filter Linear phase low pass filter

H - Electricity

03

H

H03H 11/12 (2006.01)

Patent

CA 2044501

ABSTRACT An electrical signal filter composed of a pair of cascaded filter sections in which the group delays of the two filter sections are matched so that their non linear effects cancel in the passband, resulting in an overall linear phase. In addition, the attenuation slope after the first null in one filter section's stopband response is complemented by the other filter's stopband attenuation. This prevents the overall stopband attenuation from falling to extremely low values as with some filters, which, in turn, limits the time domain overshoot. The passband group delay and stopband attenuation characteristics are controlled by appropriate selection of the passband ripple and filter order number parameters of the filter. In a preferred embodiment, the two filter sections are of the elliptic and Chebyschev type. The invention can be implemented as analog-component active filter circuit or as a digital filter.

Affiliated with

Also associated with

Rating

Linear phase low pass filter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Linear phase low pass filter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear phase low pass filter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1538501