Spike-Based Approximate Backpropagation Algorithm of Brain-Inspired Deep SNN for Sonar Target Classification

Figure 5

The process of leaky, integrate, and fire characteristics of LIF neurons. After integrating the current of the preneuron, the membrane potential of the postneuron begins to accumulate and decreases exponentially with time. Until the accumulation of the membrane potential exceeds the firing threshold, the LIF neuron fires a spike backward and resets the membrane potential.