Question

Part II: Low Pass Filter contd. Noise Removal To observe the noise removal capabilities of a low -pass filter, we will add a second input to the system to simulate noise Step 1: Alter your Simulink model by adding another sine wave function and use a Sum block to add the inputs together as the new input to the system. The second sine function will act as noise to the system. Step 2: This first sine wave should have an input of 1 y and a frequency of 10 rads·The nose input should have an amplitude of 0 1 V and frequency of 100 rad s. Capture the output of this system to observe the application of the low-pass filter Step 3. Increase the magnitude of the noise to 05%, and capture the output In your report. discuss what is happening in both images and compare the outputs of these two scenarios, Also, discuss one real-life application for this filter in your report.

part II is what I need help one. part 1 is also attached for your reference

Answer 1

SIMULINK model is created below

untitled1 - Simulink File Edit View Display Diagram Simulation Analysis Code Tools Help untitled1 euntitled1 simout 10 S+10 signal voltage Ready View 2 warnings 100% auto(ode45)

case1:

signal voltage 1V frequency = 10 rad/sec

noise voltage 0.1V frequency = 100 rad/sec

The response is plotted below

input-> yellow color

output-> blue color

0.5 0 -0.5 -1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Offset-0

It is observed that the output is much smoother than the input.

case 2

signal voltage 1V frequency = 10 rad/sec

noise voltage 0.5V frequency = 100 rad/sec

0.5 0 0.5 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Offset-0

It is observed that the input is noisier than in the previous case. The filtered output is much smoother than the input.