值计算与异质集成的memristive内核与金属氧化物半导体电容器用于时间数据分析
Sung Keun Shim1, Keonuk Lee1, Janguk Han1
1Department of Materials Science and Engineering and Inter-university Semiconductor Research Center, College of Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
Advanced materials (Deerfield Beach, Fla.)
|October 1, 2024
概括
这项研究引入了一种新的可调节值功能,使用记忆器和金属氧化物半导体电容器来精确检测时间序列数据中的事件. 新的硬件内核在分析心电图,分类口语数字和实现生物识别身份验证方面表现出高度准确性.
科学领域:
- 神经形态工程的神经形态工程
- 材料科学 材料科学 材料科学
- 信号处理 信号处理
背景情况:
- 在时间序列数据中精确的事件检测至关重要,特别是在杂的环境中.
- 存储器计算与memristive设备在时间信号处理方面表现出色,但缺乏内在的值.
- 现有的方法难以满足复杂数据集中事件检测的细微要求.
研究的目的:
- 开发一款具有可调节值功能的新型硬件内核,用于增强事件检测.
- 集成memristors和金属氧化物半导体电容器,以提供强大的计算系统.
- 在各种应用中证明该系统的有效性,包括生物信号分析和模式识别.
主要方法:
- 使用Pt/HfO2/TiN (PHT) 记忆器和Ni/HfO2/n-Si (NHS) 电容器实现一个2记忆器,1金属氧化物半导体电容器 (2M1MOS) 内核系统.
- 利用memristors的非线性电流电压特征和电容器的电容电压特征来实现可调节的值.
- 使用电容值来记录从输入信号到memristor上的特征指定的信息.
主要成果:
- 在心电图 (ECG) 分析中,记忆反应显示正常心律和心律失常心跳之间的差异超过十倍.
- 通过调整值,孤立的口语数字分类实现了0.7%的低错误率.
- 在生物识别身份验证中的成功应用,使用心跳和语音数据作为生物指标,具有多种值时间.
结论:
- 拟议的2M1MOS内核有效地实现了可调节的值,用于在记忆系统中精确检测事件.
- 记忆器和电容器的异质集成为先进的信号处理应用提供了一个有前途的框架.
- 这种方法突显了在复杂数据分析和安全性方面的存储器设备中值计算的潜力.
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