Table 1.

Difference equations for filter second-order sections used in neural prosthetic system

DF I	yn = b0xn + b1xn−1 + b2xn−2 − a1yn−1 − a2yn−2
DF II	wn = xn − a1wn−1 − a2wn−2
	yn = b0wn − b1wn−1 − b2wn−2