【摘要】：對(duì)神經(jīng)電信號(hào)的理論研究,探索新的神經(jīng)電信號(hào)檢測(cè)和采集方法,研制新的神經(jīng)電信號(hào)采集、檢測(cè)、傳輸和分析設(shè)備已經(jīng)成為當(dāng)今生物醫(yī)學(xué)、臨床醫(yī)學(xué)和電子技術(shù)領(lǐng)域的一個(gè)交叉學(xué)科熱點(diǎn)課題。特別是在應(yīng)用于醫(yī)學(xué)生物、環(huán)境檢測(cè)等的傳感器蓬勃發(fā)展的今天,越來(lái)越多的神經(jīng)電信號(hào)分析的成果用于疾病的分析、治療和監(jiān)測(cè)等臨床實(shí)驗(yàn)階段,所以對(duì)與之配套的信號(hào)處理系統(tǒng)有著越來(lái)越高的系統(tǒng)要求和更為迫切的需求。單片集成的神經(jīng)電信號(hào)采集處理的片上系統(tǒng)能夠?qū)崿F(xiàn)對(duì)微弱信號(hào)放大、分頻濾波、模數(shù)轉(zhuǎn)換、甚至數(shù)據(jù)壓縮等功能,具有低功耗、低噪聲、高精度和便攜型等優(yōu)點(diǎn),同時(shí)無(wú)線的數(shù)據(jù)傳輸方式拓展了系統(tǒng)的應(yīng)用環(huán)境,增強(qiáng)了通用性。文章首先介紹了神經(jīng)信號(hào)采集芯片的相關(guān)背景知識(shí),包括發(fā)展概況、系統(tǒng)構(gòu)架以及相關(guān)性能指標(biāo);接下來(lái)對(duì)于芯片各模塊進(jìn)行了詳細(xì)介紹,其中主要包括低噪聲,高輸入阻抗高增益的模擬放大模塊,高精度的模數(shù)轉(zhuǎn)換處理模塊和MUX電路模塊;最后采用SMIC 180nm CMOS工藝,完成了一款神經(jīng)信號(hào)采集芯片的設(shè)計(jì),總功耗僅為4mW,能同時(shí)采集十六個(gè)通道上的數(shù)據(jù),將之轉(zhuǎn)換成串行的數(shù)字信號(hào),并給出了仿真結(jié)果。
[Abstract]:The research on the theory of nerve signals, the exploration of new methods of nerve signal detection and acquisition, and the development of new equipment for the acquisition, detection, transmission and analysis of nerve signals have become biomedical nowadays. An interdisciplinary hot topic in the field of clinical medicine and electronic technology. Especially with the rapid development of sensors used in medical biology, environmental detection, and so on, more and more results in the analysis of nerve signals are used in clinical experiments such as disease analysis, treatment and monitoring. Therefore, the signal processing system has higher and higher system requirements and more urgent needs. The system can amplify weak signal, filter frequency division, convert analog to digital data, and even compress data. It has the advantages of low power consumption, low noise, high precision and portable. At the same time, the wireless data transmission mode expands the application environment of the system and enhances the universality. Firstly, this paper introduces the background knowledge of neural signal acquisition chip, including the general situation of development, system architecture and related performance indicators. Then the chip modules are introduced in detail, including low noise, high input impedance and high gain analog amplifier module, high precision A / D conversion processing module and MUX circuit module. Finally, a neural signal acquisition chip is designed by using SMIC 180nm CMOS technology. The total power consumption is only 4 MW, and the data on 16 channels can be collected at the same time, which can be converted into serial digital signal. The simulation results are given.
【學(xué)位授予單位】：北京理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TN402

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本文編號(hào)：2297574