Figure 3.

(A) Neuromorphic MGC processor and its chemosensor array integration. The resonant oscillation frequency of the SAWR devices are measured in real−time by the FPGA through the pre−processing core that removes the common mode between reference and polymer−coated input signal channels (offset remover) and scales the chemosensor input signals linearly to drive the AL Model Core running in real-time. A ratiometric detection core receives the spiking PN population outputs from each glomerulus and classifies between set ratios according to a k-nearest neighbor trajectory rule (see Results). (B) Xilinx Virtex®-5 FX70T development board integrated with SAW resonator and associated electronics displaying the current SAW input frequency.