Finger Gesture Recognition in Matlab using CSI tools

I have already completed the project but the results are not as expected. I need someone to review and correct any problems in the project. The project identifies the finger gestures by first collecting the Channel State Information (CSI) data from a WiFi device (laptop or router), it then removes environmental noise from CSI using Wavelet based denoising. It then identifies Principal components from the CSI using Matlab command "pca" EKA "princomp". Finally, it compares the gestures with predefined gestures using Euclidean distance.