發(fā)布時(shí)間：2018-03-15 11:30

  本文選題：憶阻器　切入點(diǎn)：電路模型　出處：《杭州電子科技大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：憶阻器是繼電阻、電感和電容之后的第四種基本電路元件，其概念于1971年提出，但直到2008年HP實(shí)驗(yàn)室才發(fā)現(xiàn)TiO2在納米尺度下具有記憶電阻的特性。憶阻器是一種無(wú)源的非線性電路元件，其阻值會(huì)隨著通過(guò)其自身電流量的改變而改變，且電流中斷時(shí)其阻值會(huì)保持掉電瞬間的狀態(tài)。憶阻器在非遺失性存儲(chǔ)器、人工神經(jīng)網(wǎng)絡(luò)和非線性電路方面有著廣闊的潛在應(yīng)用前景，但迄今尚未商用化。本文研究憶阻器的硬件電路模型，以期用其替代實(shí)際憶阻器進(jìn)行實(shí)驗(yàn)和應(yīng)用電路研究；探索憶阻器構(gòu)成的新型混沌電路及其特性，并嘗試將其應(yīng)用于Android平臺(tái)手機(jī)之間文件的保密傳輸之中。本文主要包括以下內(nèi)容： (1)對(duì)憶阻器建模進(jìn)行了研究，在HP實(shí)驗(yàn)室提出的TiO2憶阻器理論模型基礎(chǔ)之上，利用模擬電路設(shè)計(jì)了一個(gè)等效的荷控型憶阻器電路模型和一個(gè)磁控型憶阻器電路模型，對(duì)電路模型在正弦激勵(lì)下的伏安特性進(jìn)行了理論分析、multisim仿真實(shí)驗(yàn)和實(shí)際電路實(shí)驗(yàn)。理論分析和實(shí)驗(yàn)結(jié)果表明，憶阻器電路模型的伏安特性與HP TiO2憶阻器完全符合。為模擬實(shí)際憶阻器的掉電記憶特性，本文又提出了一個(gè)基于MCU和數(shù)字電位器實(shí)現(xiàn)的離散型荷控憶阻器架構(gòu)模型，該模型除具有TiO2憶阻器的伏安特性外，重要的是還具有實(shí)際憶阻器的記憶特性。對(duì)其在正弦波、三角波、方波和鋸齒波激勵(lì)下的伏安特性進(jìn)行了電路實(shí)驗(yàn)驗(yàn)證，獲得了預(yù)期的結(jié)果。 (2)對(duì)混沌基本理論進(jìn)行了研究，在Chua混沌系統(tǒng)基礎(chǔ)上，利用一個(gè)磁控型憶阻器替換Chua混沌電路中的Chua二極管，構(gòu)建了一個(gè)基于磁控憶阻器的四維混沌系統(tǒng)。對(duì)其平衡點(diǎn)、系統(tǒng)穩(wěn)定性進(jìn)行理論分析求證，通過(guò)分岔圖和Lyapunov譜，發(fā)現(xiàn)該系統(tǒng)存在周期一、周期二、周期四及混沌的幾種狀態(tài)，并求出對(duì)應(yīng)狀態(tài)下的系統(tǒng)參數(shù)，利用DSP驗(yàn)證了在該組參數(shù)下的系統(tǒng)特性。最后對(duì)該混沌系統(tǒng)進(jìn)行離散、量化處理，提出一種性能符合NIST測(cè)試標(biāo)準(zhǔn)的偽隨機(jī)序列生成方法。 (3)針對(duì)密碼學(xué)和混沌學(xué)的諸多相似性，本文利用該憶阻器混沌系統(tǒng)產(chǎn)生的隨機(jī)序列作為密鑰，，對(duì)Android平臺(tái)基于WiFi的無(wú)線數(shù)據(jù)進(jìn)行加密共享。該軟件有兩種工作模式， WiFi模式下兩臺(tái)Android設(shè)備通過(guò)WiFi熱點(diǎn)轉(zhuǎn)發(fā)進(jìn)行數(shù)據(jù)通訊；WiFi直連模式下兩臺(tái)Android設(shè)備通過(guò)點(diǎn)對(duì)點(diǎn)直連方式進(jìn)行數(shù)據(jù)通訊。在Eclipse軟件環(huán)境中利用Java語(yǔ)言實(shí)現(xiàn)該軟件的編寫(xiě)，最后基于Tiny6410實(shí)驗(yàn)平臺(tái)及Android手機(jī)進(jìn)行實(shí)際測(cè)試。
[Abstract]:Resistive devices are 4th basic circuit components after resistors, inductors and capacitors. The concept was proposed in 1971. But it wasn't until 2008 that HP Labs discovered that TiO2 has a memory resistance on a nanoscale scale. The resistor is a passive, nonlinear circuit element whose resistance changes with its own current. And when the current is interrupted, the resistance value will remain in the state of instant power-off. The resistor has a wide potential application in non-lost memory, artificial neural networks and nonlinear circuits. But it has not been commercialized up to now. This paper studies the hardware circuit model of the resistor in order to study the experiment and application circuit instead of the actual one, and explores the new chaotic circuit and its characteristics. And try to apply it to the secure transmission of files between mobile phones on Android platform. This paper mainly includes the following contents:. 1) based on the theoretical model of TiO2, an equivalent circuit model of load-controlled resistor and a magnetic-controlled circuit are designed based on the theoretical model of TiO2, which is proposed by HP lab. The volt-ampere characteristics of the circuit model under sinusoidal excitation are analyzed theoretically and experimentally by multisim simulation experiment and practical circuit experiment. The theoretical analysis and experimental results show that, The volt-ampere characteristic of the circuit model of the resistor is in good agreement with that of the HP TiO2 resistor. In order to simulate the memory characteristics of the practical demertiplexer, this paper presents a discrete dead-controlled resistor architecture model based on MCU and digital potentiometer. In addition to the volt-ampere characteristics of the TiO2 resistor, it is important that the model also has the memory characteristics of the actual resistor. The volt-ampere characteristics of the model under the excitation of sinusoidal wave, triangular wave, square wave and sawtooth wave are verified by circuit experiments. The expected results were obtained. In this paper, the basic theory of chaos is studied. On the basis of Chua chaotic system, a four-dimensional chaotic system is constructed by replacing the Chua diode in the Chua chaotic circuit with a magnetic-controlled resistor, and the equilibrium point of the system is analyzed. The stability of the system is proved by theoretical analysis. By means of bifurcation diagram and Lyapunov spectrum, it is found that the system has several states of period one, period two, period four and chaos, and the corresponding parameters of the system are obtained. Finally, the chaotic system is discretized and quantized, and a pseudorandom sequence generation method, which meets the NIST test standard, is proposed. In view of the similarity between cryptography and chaos, this paper uses the random sequence generated by the chaotic system of the mnemonics as the key. The Android platform wireless data based on WiFi is encrypted and shared. The software has two working modes. In WiFi mode, two Android devices transmit data via WiFi hot spot. In WiFi direct connection mode, two Android devices are connected through point-to-point direct connection. In the Eclipse software environment, the Java language is used to realize the programming of the software. Finally, based on the Tiny6410 experimental platform and Android mobile phone for practical testing.
【學(xué)位授予單位】：杭州電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TM132;O415.5

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 李艷麗;;Android事件處理過(guò)程剖析[J];長(zhǎng)春理工大學(xué)學(xué)報(bào)(自然科學(xué)版);2010年03期

2 包伯成;王其紅;許建平;;基于憶阻元件的五階混沌電路研究[J];電路與系統(tǒng)學(xué)報(bào);2011年02期

3 王光義;王春雷;陳維;譚德;;一個(gè)磁控憶阻器混沌電路及其FPGA實(shí)現(xiàn)[J];電路與系統(tǒng)學(xué)報(bào);2011年06期

4 趙亮;張維;;基于Android技術(shù)的界面設(shè)計(jì)與研究[J];電腦知識(shí)與技術(shù);2009年29期

5 蔡坤鵬;王睿;周濟(jì);;第四種無(wú)源電子元件憶阻器的研究及應(yīng)用進(jìn)展[J];電子元件與材料;2010年04期

6 王樂(lè)毅;;憶阻器研究進(jìn)展及應(yīng)用前景[J];電子元件與材料;2010年12期

7 聶一雄;尹項(xiàng)根;張哲;;模擬積分器應(yīng)用探討[J];電子測(cè)量技術(shù);2000年03期

8 張紅,周尚波;混沌理論在密碼學(xué)中的應(yīng)用[J];重慶大學(xué)學(xué)報(bào)(自然科學(xué)版);2004年04期

9 張繼永;;淺析Android系統(tǒng)的軟件安全設(shè)計(jì)[J];硅谷;2010年23期

10 王曉媛;齊維貴;王興元;;憶阻器的電路實(shí)現(xiàn)及其混沌動(dòng)力學(xué)研究[J];北京航空航天大學(xué)學(xué)報(bào);2012年08期

相關(guān)博士學(xué)位論文 前1條

1 包伯成;混沌動(dòng)力學(xué)系統(tǒng)延拓與分析[D];南京理工大學(xué);2010年

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