System Architecture Data collection and Feature extraction Identification pre-processing Gait cycle time 1.Model generation 1.CSI data collection Torso speed Training data Footstep size collection Leg speed Spectrogram signature 2.PCA denoising 2.Prediction SVM based prediction 3.Spectrogram generation 204000100 40600 0406082 10 71967/96 System Architecture Data collection and pre-processing Feature extraction - Gait cycle time - Torso speed - Footstep size - Leg speed - Spectrogram signature 1. CSI data collection 2. PCA denoising 3. Spectrogram generation Identification 1. Model generation 2. Prediction Training data collection SVM based prediction