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BME558:  Introduction to Brain-Machine Interfaces

Homework 5

Using MATLAB generate simulated neural data in the following way. Each electrode records a signal that is similar to sum of 2 sinusoids of 2 different frequencies with some noise. Select your own frequencies and amplitudes. In this experiment assume that 3 such electrodes are recording 3 different signals. Perform the following operations on these three signals.

1. Plot three signals using subplot function.

2. Compute their mean, standard deviation, and variance.

3. Plot their mean absolute values using a sliding window of size 50.

4. Plot their root mean squared values using a sliding window of size 50.

5. Plot their fast fourier transforms.

6. Plot their spectrograms.

All plots should have titles and labels. Submit screenshots and your well commented MATLAB code.

Please submit your HW in Canvas under “Assignments” or by email togmcconne@stevens.edu