Efficient VLSI architecture for spike sorting based on generalized Hebbian algorithm

A novel hardware architecture for fast spike sorting is presented in this paper. The architecture is able to perform feature extraction based on the Generalized Hebbian Algorithm (GHA). The employment of GHA allows efficient computation of principal components for subsequent clustering and classification operations. The hardware implementations of GHA features high throughput and low area costs. The proposed architecture is implemented by Field Programmable Gate Array (FPGA). It is embedded in a System-On-Programmable-Chip(SOPC) platform for performance measurement. Experimental results show that the proposed architecture is an efficient spike sorting design for attaining low hardware resource utilization and high speed computation.