Hardware considerations of a spatial filter for decorrelating high-density multielectrode neural recordings.
Hardware considerations of a spatial filter for decorrelating high-density multielectrode neural recordings.
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用于解相关高密度多电极神经记录的空间滤波器的硬件注意事项。
DOI：
10.1109/iembs.2006.259867
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发表时间：
2006
期刊：
影响因子：
--
通讯作者：
Oweiss,KarimG
中科院分区：
文献类型：
--
作者：
Thomson,KyleE;Oweiss,KarimG
高密度植入式微电极阵列记录大量高度相关的数据，这对有限带宽遥测系统造成巨大压力。先前的工作表明，使用空间滤波器可以显着减少必须传输以充分表示数据的通道数量。然而，植入式神经假体装置的功率和尺寸的限制对空间滤波器的计算复杂性施加了显着的限制。我们评估了空间滤波的浮点运算的性能，并表明它可以近似为整数，而信号保真度的损失可以忽略不计，从而降低了计算复杂度
High density implantable microelectrode arrays record large amounts of highly correlated data, which causes large strains on limited bandwidth telemetry systems. Previous work has shown that the use of a spatial filter can significantly reduce the number of channels that must be transmitted to adequately represent the data. However, the limitations on power and size for an implantable neuroprosthetic device impose significant limitations on the computational complexity of the spatial filter. We assess the performance of the floating point operations of spatial filtering and show that it can be approximated to integers with negligible losses to signal fidelity, thus reducing the computational complexity