Barati Saied, Sodagar Amir M
Electrical Engineering Department, S. Rajaee University, Tehran, Iran.
Annu Int Conf IEEE Eng Med Biol Soc. 2010;2010:6445-8. doi: 10.1109/IEMBS.2010.5627339.
An analog spike detector circuit is presented, which adaptively generates a threshold level for spike detection based on hard-thresholding. Operation of the circuit was tested not only with a neural signal obtained from real in-vivo recording from a live animal, but also with a large sinusoidal baseline variation intentionally added to examine the capability of the circuit to track baseline variations as large as 50mV. The circuit runs at 3.3V supply voltage and dissipates 270 microW.
本文提出了一种模拟尖峰检测电路，该电路基于硬阈值自适应地生成用于尖峰检测的阈值电平。不仅使用从活体动物的真实体内记录获得的神经信号对该电路的运行进行了测试，还故意添加了大幅正弦基线变化来检验该电路跟踪高达50mV基线变化的能力。该电路在3.3V电源电压下运行，功耗为270微瓦。
