Suppose you are given a filter with a zero at 30° on the unit circle. You are asked to use this filter as a notch filter to remove 60-Hz noise. Determine the sampling frequency in Hz.
Suppose you are given a filter with a zero at 30° on the unit circle. You...
using Matlab: 1) Design an FIR notch filter using zero placement to remove power-line noise at 60 Hz (use file ecg_60hz_200, fs = 200 Hz). 2) Design a LP Butterworth filter with cut-off frequency of 40 Hz to remove high-frequency noise (use file ecg_hfn.dat, fs = 1000 Hz). 3) Design an Elliptic HP filter with passband ripple of 0.01 dB and stopband attenuation of 50 dB and cut-off frequency of 0.5 Hz to remove low-frequency noise (use file ecg_lfn.dat, fs...
An analog notch filter is defined below where Ω° is the frequency to be removed, and β is the bandwidth around Ω0 And the quality factor Q is defined as .(20 Use bilinear transformation with T = 2 to design a digital notch filter to remove 60 Hzfrequeney with sampling rate 360 Hz. Use Q-5.
A stable filter has a zero on the unit circle. Can you say that this filter is an allpass?
Using Pole Zero Placement Method, design a second-order notch filter with a sampling rate of 10,000 Hz, a 3dB bandwidth of 200 Hz, and narrow stop-band centered at 3,000 Hz. From the transfer function, determine the difference equation.
I need help with number 2 . Please answer in MATLAB thank
you!
1. In the lab we analyzed filtering 60 Hz power-line noise from ECG signal using a digital (signal processing) filter. Now let's try to an analog (circuit) filter approach to remove the 60 Hz line-noise. Following is an active twin-T notch filter with transfer function: (1+m)((2joRC? +1 Z(a) 2R 2R Here m is the ratio of the two feedback 2C R resistance which determines the gain and...
(MATLAB question) "ecg_signal.mat" converted to a .csv file yields the following data; This is only part of the whole .mat file. Please show how to analyze the whole signal from this snapshot. 1. In the lab we analyzed filtering 60 Hz power-line noise from ECG signal using a digital (signal processing) filter. Now let's try to an analog (circuit) filter approach to remove the 60 Hz line-noise. Following is an active twin-T notch filter with transfer function: 2R 2R Here...
Design the second order band stop filter (notch
filter) whose circuit is given below so that the resonance
frequency is 400 Hz and Q = 5 and plot the change of the gain
according to the frequency in the Pspice program and show it on the
parameters of the filter. (Select LM741 for OPAMP.)
(values can be chosen randomly but it must be consistent
pspice is not required. R1 R2 Ra Rb what to choose.
Show that equations
C R₂...
An analog signal, bandlimited to 10 Hz is corrupted by high-frequency noise. The spectrum of the noise is from 30 Hz to 50 Hz. The noisy analog signal is sampled at 70 Hz. A digital lowpass filter is to be designed so as to remove the noise from the signal. For the filter design problem, what would you choose for the desired frequency response D(?)? Sketch the function for 0 ? ? ? ? where ? is normalized frequency (radians/sample)....
Q1) Given an analog signal X(t) = 3 cos (2π . 2000t) + 2 cos (2π . 5500t) sampled at a rate of 10,000 Hz, a. Sketch the spectrum of the sampled signal up to 20 kHz; b. Sketch the recovered analog signal spectrum if an ideal lowpass filter with a cutoff frequency of 4 kHz is used to filter the sampled signal in order to recover the original signal ; c. Determine the frequency/frequencies of aliasing noise . Q2)...
A discrete-time filter is to be designed using the bilinear transform method. The sampling rate of the digital system is 2 samples/second. The continuous-time filter is given as; s + 2 5 Points Each. Circle the Best Answer 37. lf the filter is changed to a prewarped bilinear design with a prewarp frequency ot 1 Hz, the dc frequency response of the discrete-time filter lH(coo Would then equal a) arctan(2)b) 1/3c) d) 76 e) none above