Two-Pole Band-pass Filter Based on All-pass Filter

Abstract

This paper proposes the new two-pole band-pass filter design principle for the all-pass filter and notch filter by applying the least square. The first step is to design notch filter by using pole-zero placement and then modify pole positions to control pass-band filter gain to ensure the symmetry with the maximum gain at the target level. After that, there is the design of all-pass filter with pole at the same positions as the notch filters to make the negative cascade with the designed notch filter to get the transfer function with band-pass filter magnitude response. The results from the experiments on MATLAB have shown the twopole band-pass filter of the new design with the accurate and symmetric gain.

A Novel Sleep Scoring Algorithm-Based Framework and Sleep Pattern Analysis Using Machine Learning Techniques

“…The data that is been received from the accelerometer contains a lot of noise and artifacts, therefore we apply a bandpass filter (Yimman et al (2005)) for removing all the signals above 10Hz and Lower than 0.88 Hz because of our primary task of fetching the proper signals is satisfied by the range of 0.88-10 Hz. Moreover, the tri-axial accelerometer registers the data at a sampling rate of 26Hz, therefore in the preprocessing step, the downsampling of data has to be performed to 4Hz which is a primary requirement for the model.…”