← 返回 JSSC 论文列表JSSC 2009第6期RF & Wireless0.13μm
A Bio-Inspired Active Radio-Frequency Silicon Cochlea
受生物耳蜗启发的射频硅耳蜗芯片，实现高效频谱分析
0.13μm CMOS, 3mm×1.5mm, 50通道, 70dB动态范围, 300mW功耗, 600MHz-8GHz
生物启发耳蜗模型射频硅耳蜗频谱分析
▸采用指数锥形传输线或滤波器级联模拟耳蜗操作
▸利用晶体管模拟外毛细胞反馈机制
▸新型有理耳蜗传递函数实现更锐利的滚降斜率和更低的群延迟
Abstract
, Senior Member, IEEE
Abstract—Fast wideband spectrum analysis is expensive in
power and hardware resources. We show that the spectrum-anal-
ysis architecture used by the biological cochlea is extremely
efficient: analysis time, power and hardware usage all scale
linearly with
, the number of output frequency bins, versus
/108/111/103/40
/41for the Fast Fourier Transform. We also demonstrate
two on-chip radio frequency (RF) spectrum analyzers inspired
by the cochlea. They use exponentially-taper