一种基于情感依存元组的简单句情感判别方法
作者：
周文;欧阳纯萍;阳小华;刘志明;张书卿;...
期刊：
中文信息学报 ,2017年31(3):177-183 ISSN：1003-0077
作者机构：
[周文] 南华大学计算机科学与技术学院,湖南衡阳421001;[周文] 怀化市烟草专卖局,湖南怀化418000;南华大学计算机科学与技术学院,湖南衡阳,421001;[张书卿; 刘志明; 欧阳纯萍; 阳小华; 饶婕] 南华大学
关键词：
情感依存元组;情感倾向性;依存语法;句法分析
摘要：
基于依存句法“动词配价”原理与组块的概念,提出以情感依存元组(EDT)作为中文情感表达的基本单位。它以句中能承栽情感的几类实词作为中心词,修饰词依附于中心词,程度词和否定词依附于中心词和修饰词。该文对句子进行句法分析,在句法树和依赖关系中按规则提取情感依存元组,建立简单句情感依存元组判别模型计算情感倾向性。针对COAE2014评测公布的网络新闻语料,将该方法分别与有监督分类算法(KNN、SVM)和半监督算法(K-means)进行实验对比。结果表明,基于EDT的情感分类性能与有监督的机器学习算法相当,远高于半监督的聚类算法。
语种：
中文
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Carbon-Coated Na3.32Fe2.34(P2O7)2 Cathode Material for High-Rate and Long-Life Sodium-Ion Batteries
作者：
Chen, Mingzhe;Chen, Lingna;Hu, Zhe;Liu, Qiannan;Zhang, Binwei;...
期刊：
Advanced Materials ,2017年29(21):1605535- ISSN：0935-9648
通讯作者：
Chou, Shu-Lei;Guo, Xiaodong
作者机构：
[Chen, Mingzhe; Wang, Jian-Li; Zhang, Binwei; Hu, Zhe; Chou, Shu-Lei; Liu, Qiannan; Dou, Shi-Xue] Univ Wollongong, Inst Superconducting & Elect Mat, Australian Inst Innovat Mat, Innovat Campus,Squires Way, North Wollongong, NSW 2522, Australia.;[Chen, Lingna] Univ South China, Sch Comp Sci & Technol, Hengyang 421001, Peoples R China.;[Wang, Lian-Zhou; Hu, Yuxiang] Univ Queensland, Sch Chem Engineer, Brisbane, Qld 4072, Australia.;[Wang, Lian-Zhou; Hu, Yuxiang] Univ Queensland, Australian Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia.;[Gu, Qinfen] Australian Synchrotron, 800 Blackburn Rd, Clayton, Vic 3168, Australia.
通讯机构：
[Chou, Shu-Lei] U;[Guo, Xiaodong] S;Univ Wollongong, Inst Superconducting & Elect Mat, Australian Inst Innovat Mat, Innovat Campus,Squires Way, North Wollongong, NSW 2522, Australia.;Sichuan Univ, Coll Chem Engn, Chengdu 610065, Peoples R China.
关键词：
carbon coatings;cathode materials;cycling stability;polyanion frameworks;sodium-ion batteries
摘要：
Rechargeable sodium-ion batteries are proposed as the most appropriate alternative to lithium batteries due to the fast consumption of the limited lithium resources. Due to their improved safety, polyanion framework compounds have recently gained attention as potential candidates. With the earth-abundant element Fe being the redox center, the uniform carbon-coated Na3.32Fe2.34(P2O7)2/C composite represents a promising alternative for sodium-ion batteries. The electrochemical results show that the as-prepared Na3.32Fe2.34(P2O7)2/C composite can deliver capacity of ≈100 mA h g−1 at 0.1 C (1 C = 120 mA g−1), with capacity retention of 92.3% at 0.5 C after 300 cycles. After adding fluoroethylene carbonate additive to the electrolyte, 89.6% of the initial capacity is maintained, even after 1100 cycles at 5 C. The electrochemical mechanism is systematically investigated via both in situ synchrotron X-ray diffraction and density functional theory calculations. The results show that the sodiation and desodiation are single-phase-transition processes with two 1D sodium paths, which facilitates fast ionic diffusion. A small volume change, nearly 100% first-cycle Coulombic efficiency, and a pseudocapacitance contribution are also demonstrated. This research indicates that this new compound could be a potential competitor for other iron-based cathode electrodes for application in large-scale Na rechargeable batteries. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
语种：
英文
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An Approach to Proving Proof Obligation of Hybrid Event B Based on Differential Invariants
作者：
Liu, Jie;Liu, Jing* ;Zhang, Miaomiao;Sun, Haiying;Chen, Xiaohong;...
期刊：
Proceedings - IEEE Computer Society's International Computer Software and Applications Conference ,2017年1:138-143 ISSN：0730-3157
通讯作者：
Liu, Jing
作者机构：
[Liu, Jie; Chen, Mingsong; Liu, Jing; Sun, Haiying; Chen, Xiaohong; Du, Dehui] East China Normal Univ, Shanghai Key Lab Trustworthy Comp, Shanghai 200062, Peoples R China.;[Liu, Jie] Univ South China, Sch Comp Sci & Technol, Hengyang 421001, Peoples R China.;[Zhang, Miaomiao] Tongji Univ, Sch Software Engn, Shanghai 200062, Peoples R China.
通讯机构：
[Liu, Jing] E;East China Normal Univ, Shanghai Key Lab Trustworthy Comp, Shanghai 200062, Peoples R China.
会议名称：
41st IEEE Annual Computer Software and Applications Conference (COMPSAC)
会议时间：
JUL 04-08, 2017
会议地点：
Torino, ITALY
会议主办单位：
[Liu, Jie;Liu, Jing;Sun, Haiying;Chen, Xiaohong;Du, Dehui;Chen, Mingsong] East China Normal Univ, Shanghai Key Lab Trustworthy Comp, Shanghai 200062, Peoples R China.^[Liu, Jie] Univ South China, Sch Comp Sci & Technol, Hengyang 421001, Peoples R China.^[Zhang, Miaomiao] Tongji Univ, Sch Software Engn, Shanghai 200062, Peoples R China.
会议论文集名称：
Proceedings International Computer Software and Applications Conference
关键词：
hybrid system;Hybrid Event B;differential event;differential invariant;proof obligation
摘要：
For modelling hybrid systems, we have extended Event B based on its framework with the differential event. The differential event describes continuous behaviors of hybrid systems by differential equations and evolution constraint, whose proof obligations provide dynamical properties of a model. In order to ensure the safety and reliability of a model, proof obligations should be proved. It is difficult to prove proof obligation in state space, because there is no a complete method to solve differential equations in the field of mathematics. Thus we proposed an approach to proving proof obligation based on differential invariants. It is to avoid uncontrollable computation on solving differential equation. The main result is that we prove some theorems for proving proof obligations involving differential events within the framework of refinement calculus. Lastly, through the case of the Train Control System, we further show that the approach is well suited. ©2017 IEEE.
语种：
英文
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Research on Testing Adequacy Criterion of Reactor Physics Code of NESTOR
作者：
Li Meng* ;Wang Li-Jun;Li Yu-Yan;Yang Xiao-Hua
期刊：
PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING, 2017, VOL 2 ,2017年2
通讯作者：
Li Meng
作者机构：
[Li Meng; Yang Xiao-Hua] CNNC Key Lab High Trusted Comp, Hengyang 421001, Hunan, Peoples R China.;[Li Yu-Yan; Wang Li-Jun] Univ South China, Sch Elect Engn, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Li Meng] C;CNNC Key Lab High Trusted Comp, Hengyang 421001, Hunan, Peoples R China.
会议名称：
25th International Conference on Nuclear Engineering
会议时间：
JUL 02-06, 2017
会议地点：
Shanghai, PEOPLES R CHINA
会议主办单位：
[Li Meng;Yang Xiao-Hua] CNNC Key Lab High Trusted Comp, Hengyang 421001, Hunan, Peoples R China.^[Wang Li-Jun;Li Yu-Yan] Univ South China, Sch Elect Engn, Hengyang 421001, Hunan, Peoples R China.
摘要：
In view of the characteristics of the physical code Nestor the focus is on the correctness of calculation for which the test adequacy criterion has been established. This is based on structural coverage and the input domain. According to such test adequacy criterion, testing strategies have been applied on the entire testing process. They consist of unit static, unit dynamic, integration, system and regression test strategy. Each strategy is composed of test target, test range, technology and method, entry criterion, completion criterion, test focus and priority. After compared with 11 basic benchmarks from nuclear power plants and calculation result of benchmark programs, the ELEMENT program result is correct and credible; the relative error of result is less than three percent. The ELEMENT testing is adequacy. Its test cases covers fuel grid element types, fuel types, non-combustible grid element types, and control rod computational models. Furthermore, it puts forward a research direction in the future.
语种：
英文
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Models for Location Inventory Routing Problem of Cold Chain Logistics with NSGA-Ⅱ Algorithm
作者：
郑建国;李康;伍大清
期刊：
东华大学学报(英文版) ,2017年34(4):533-539 ISSN：1672-5220
通讯作者：
Li, K.
作者机构：
Glorious Sun School of Business and Management, Donghua University, Shanghai, 200051, China;School of Computer Science and Technology, University of South China, Hengyang, 421001, China
通讯机构：
Glorious Sun School of Business and Management, Donghua University, Shanghai, China
关键词：
cold chain logistics;multi-objective;location inventory routing problem （ LIRP ）;non-dominated sorting in genetic algorithm Ⅱ（ NSGA-Ⅱ ）
摘要：
In this paper, a novel location inventory routing (LIR) model is proposed to solve cold chain logistics network problem under uncertain demand environment. The goal of the developed model is to optimize costs of location, inventory and transportation. Due to the complex of LIR problem (LIRP), a multi-objective genetic algorithm (GA), non-dominated sorting in genetic algorithm II (NSGA-II) has been introduced. Its performance is tested over a real case for the proposed problems. Results indicate that NSGA-II provides a competitive performance than GA, which demonstrates that the proposed model and multi-objective GA are considerably efficient to solve the problem. Copyright © 2017 Editorial Board of Journal of Donghua University, Shanghai, China.
语种：
英文
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How Do Pronouns Affect Word Embedding
作者：
Chung, Tonglee;Xu, Bin;Liu, Yongbin* ;Li, Juanzi;Ouyang, Chunping
期刊：
清华大学学报自然科学版(英文版) ,2017年22(6):586-594 ISSN：1007-0214
通讯作者：
Liu, Yongbin
作者机构：
[Xu, Bin; Li, Juanzi; Chung, Tonglee] Tsinghua Univ, Dept Comp Sci & Technol, Beijing 100084, Peoples R China.;[Ouyang, Chunping; Liu, Yongbin] Univ South China, Sch Comp Sci & Technol, Hengyang 421001, Peoples R China.
通讯机构：
[Liu, Yongbin] U;Univ South China, Sch Comp Sci & Technol, Hengyang 421001, Peoples R China.
关键词：
word embedding;co-reference resolution;representation learning
摘要：
Word embedding has drawn a lot of attention due to its usefulness in many NLP tasks. So far a handful of neural-network based word embedding algorithms have been proposed without considering the effects of pronouns in the training corpus. In this paper, we propose using co-reference resolution to improve the word embedding by extracting better context. We evaluate four word embeddings with considerations of co-reference resolution and compare the quality of word embedding on the task of word analogy and word similarity on multiple data sets. Experiments show that by using co-reference resolution, the word embedding performance in the word analogy task can be improved by around 1.88%. We find that the words that are names of countries are affected the most, which is as expected.
语种：
英文
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程序设计课程中的风险思维培养
作者：
李晓昀;马淑萍;余颖
期刊：
计算机教育 ,2017年(4):79-81 ISSN：1672-5913
作者机构：
南华大学计算机科学与技术学院,湖南衡阳,421001
关键词：
风险思维;程序设计;思维训练;思维教学
摘要：
风险思维作为针对风险所产生的预测、估算、推理、决策等一系列心智活动,已成为新型人才所应具备的科学思维方式之一。高校作为人才培养的重要基地,挖掘现有课程思维训练潜能,创新教学方法,推进思维教学已成必然。文章分析程序设计课程在风险思维训练中的优势,阐述具体的思维训练方法,初步探讨该课程在风险思维训练中的积极作用。
语种：
中文
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基于模拟退火算法和发送行为的垃圾邮件检测模型
作者：
张汛;刘朝晖
期刊：
南华大学学报(自然科学版) ,2017年31(1):77-80 ISSN：1673-0062
作者机构：
南华大学 计算机科学与技术学院,湖南 衡阳,421001;[张汛; 刘朝晖] 南华大学
关键词：
垃圾邮件;模拟退火算法;发送行为
摘要：
垃圾邮件给当今人们的生活带来严重的负面影响.虽然已经有很多过滤方法,但大多存在一定的不足之处,如检测时间长、召回率低等问题.本文提出了一种基于模拟退火算法和发送行为的垃圾邮件检测模型,旨在弥补已有检测方法的不足.模拟退火算法可能找到全局最优解,且收敛性强;而基于发送行为的垃圾邮件检测技术能显著提高服务器处理垃圾邮件的速度.本文尝试将二者相结合,以提高垃圾邮件的召回率及服务器处理能力.通过实验结果可以看出,该方法在垃圾邮件的召回率上有较大提升,较适于部署在小型邮件服务器上.
语种：
中文
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Numerical simulation to quantify the leakage risk in a multi-layer aquifer system of pure brine recovery and CO2 -enhanced brine recovery: a case study of potassium-rich brine recovery in Jianghan Basin of China
作者：
Fang, Qi;Lv, Junwen;Peng, Guojian* ;Luo, Caiwu;Li, Mi;...
期刊：
Environmental Earth Sciences ,2017年76(13):1-11 ISSN：1866-6280
通讯作者：
Peng, Guojian
作者机构：
[Li, Mi; Fang, Qi; Lv, Junwen; Tan, Wenfa; Luo, Caiwu; Luo, Yingfeng] Univ South China, Sch Environm & Safety Engn, Hengyang 421001, Peoples R China.;[Peng, Guojian] Univ South China, Sch Comp Sci & Technol, Hengyang 421001, Peoples R China.
通讯机构：
[Peng, Guojian] U;Univ South China, Sch Comp Sci & Technol, Hengyang 421001, Peoples R China.
关键词：
Pure brine recovery (PBR);CO2-enhanced brine recovery (CO2-EBR);A multi-layer aquifer;Leakage risk;Pressure control
摘要：
Deep brine recovery enhanced by supercritical CO2 injection is proposed to be a win–win method for the enhancement of brine production and CO2 storage capacity and security. However, the cross-flow through interlayers under different permeability conditions is not well investigated for a multi-layer aquifer system. In this work, a multi-layer aquifer system with different permeability conditions was built up to quantify the brine production yield and the leakage risk under both schemes of pure brine recovery and enhanced by supercritical CO2. Numerical simulation results show that the permeability conditions of the interlayers have a significant effect on the brine production and the leakage risk as well as the regional pressure. Brine recovery enhanced by supercritical CO2 injection can improve the brine production yield by a factor of 2–3.5 compared to the pure brine recovery. For the pure brine recovery, strong cross-flow through interlayers occurs due to the drastic and extensive pressure drop, even for the relative low permeability (k=10−20m2) mudstone interlayers. Brine recovery enhanced by supercritical CO2 can successfully manage the regional pressure and decrease the leakage risk, even for the relative high permeability (k=10−17m2) mudstone interlayers. In addition, since the leakage of brine mainly occurs in the early stage of brine production, it is possible to minimize the leakage risk by gradually decreasing the brine production pressure at the early stage. Since the leakage of CO2 occurs in the whole production period and is significantly influenced by the buoyancy force, it may be more effective by adopting horizontal wells and optimizing well placement to reduce the CO2 leakage risk. © 2017, Springer-Verlag GmbH Germany.
语种：
英文
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基于情感词典方法的情感倾向性分析
作者：
杨奎;段琼瑾
期刊：
计算机时代 ,2017年(3):10-13 ISSN：1006-8228
作者机构：
南华大学计算机科学与技术学院,湖南 衡阳,421000;[杨奎; 段琼瑾] 南华大学
关键词：
舆情分析;情感词典;情感倾向性分析;词汇相似度
摘要：
针对网络舆情中观点的获取问题,提出了基于情感词典的情感倾向性分析方法。介绍了情感词的基本概念,给出了基于How Net概念词典通过计算词汇相似度构建情感字典的方法,探讨了不同类型情感词对文本情感的影响程度并设计了情感得分策略。根据得分挖掘人们对舆情的褒贬态度,从而准确的分析文本的情感走向。
语种：
中文
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Image Annotation by Object Hypotheses-oriented Deep Neural Networks
作者：
Fang MA;Shao-he LV;Ke-xin ZHENG;Chi JIN;Fei CHEN;...
作者机构：
[Fang MA; Shao-he LV; Ke-xin ZHENG; Chi JIN; Fei CHEN; Ke YANG; and Yong DOU] National Laboratory for Parallel and Distributed Processing,National University of Defense Technology;[Fang MA; Shao-he LV; Ke-xin ZHENG; Chi JIN; Fei CHEN; Ke YANG; and Yong DOU] University of South China,School of Computer Science and Technology
会议名称：
2017 2nd International Conference on Software, Multimedia and Communication Engineering（SMCE 2017)
会议时间：
2017-04-23
会议地点：
中国上海
摘要：
Image annotation generates a set of semantic labels that describe the contents of an input image.Recently deep learning techniques have achieved significant success in many areas of image processing.I
语种：
英文
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构建“赛学一体化”生态圈 引领高校创新人才培养
作者：
刘立;阳小华
期刊：
实验技术与管理 ,2017年34(6):18-21 ISSN：1002-4956
作者机构：
南华大学计算机科学与技术学院 ,湖南衡阳,421001;[阳小华; 刘立] 南华大学
关键词：
赛学一体化;生态圈;创新人才;学科竞赛
摘要：
学科竞赛是大学生能力培养的有效载体,是对传统课堂教学、实验教学的重要补充。基于学生各类能力的培养、实现难度等级以及时间成本生成＂赛学一体化＂权重矩阵,根据培养目标不同构建不同的学科竞赛生态链,与团队建设相结合,形成可持续发展的学科竞赛生态圈。模式柔性可变,经过南华大学多年来从实践到理论,以理论指导实践,取得了很好效果。
语种：
中文
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基于合约的SCADE测试工具设计与实现
作者：
刘小同;熊梦;阳小华;刘杰
期刊：
电脑知识与技术 ,2017年13(11):222-224 ISSN：1009-3044
作者机构：
南华大学计算机科学与技术学院,湖南衡阳,421001
关键词：
反应堆保护系统;SCADE系统;基于合约的测试平台
摘要：
反应堆保护系统是核电厂中最重要的安全系统,对保证核电设备、工作人员以及周边环境的安全有着至关重要的作用.由于反应堆保护系统所需要的高安全性,因此SCADE平台开发的压水堆反应堆保护系统(以下简称SCADE系统)是近年来重要的研究方向.但是SCADE平台的开发过程基本以图形方式展现,设计与验证工作也都在SCADE系统内部完成,缺少对内部的本质特征的说明.因此需要一种方法来对SCADE系统的内部结构进行解释,并根据此对SCADE系统进行后期的验证工作提供理论支持,确保对SCADE系统的验证工作是有效的.笔者由此提出了基于合约的SCADE测试理论,并根据此理论设计并开发了基于合约的SCADE自动测试平台,用于为SCADE系统的验证工作提供充分的测试用例并进行相关测试工作.
语种：
中文
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基于Android平台的环保天网应用程序开发
作者：
邓文斌;余童兰;徐银玉;陈诚益江;唐斌;...
期刊：
电脑知识与技术 ,2017年13(10):76-77 ISSN：1009-3044
作者机构：
南华大学计算机科学与技术学院,湖南衡阳,421000
关键词：
移动互联网;环保;举报
摘要：
基于Android平台,利用移动互联的普及性,通过时间,地点,图片来获取的环境污染的信息,并结合及时上传功能,实现手机端实时污染举报,为环保人士或自身利益受到周围环境污染影响的人们提供监督举报平台,同时便于环保部门及时处理污染事件。
语种：
中文
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云计算环境下电子商务退换货模式研究
作者：
欧翠玲;刘洋
期刊：
商场现代化 ,2017年(6):50-51 ISSN：1006-3102
作者机构：
南华大学经济管理学院;南华大学计算机科学与技术学院
关键词：
云计算;电子商务;退换货模式
摘要：
退换货是一种有效提高顾客满意度的售后服务方式.退换货服务涉及多方主体信息资源和利益关系,而云计算具有信息共享和大数据处理能力.文章分析了云计算环境下电子商务的退换货模式,为企业实施退换货模式提供了新的视角.
语种：
中文
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基于时间序列的P2P网络综合信任模型研究
作者：
赵治国;谭邦;夏石莹;谭敏生
期刊：
计算机工程与应用 ,2017年53(15):127-131,265 ISSN：1002-8331
作者机构：
[赵治国; 谭邦; 夏石莹; 谭敏生] 南华大学计算机科学与技术学院, 湖南, 衡阳, 421001
关键词：
P2P网络;综合信任模型;时间序列;人类信任关系;直接信任;间接信任
摘要：
P2P网络具有动态性,自组织和匿名性等特点,从而导致网络中某些节点存在恶意行为,为了保证节点能提供可靠资源和良好服务,提出一种基于时间序列的P2P综合信任模型,使对等节点之间建立信任关系。该模型在计算直接信任度和间接信任度时引入时间衰减函数,近期的信任值衰减小,对整体信任度的影响大。通过反馈控制机制动态更新簇内节点和簇头节点的信任度,使整体信任值具有时效性,对节点信任度的评价更精确和更可靠。实验证明,该信任模型较DyTrust模型降低了节点之间的交互时延,稳定性和动态自适应性更好,检测恶意节点的能力更强,提高P2P网络的可信度,对P2P网络的安全提供有力保障。
语种：
中文
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Desktop data driven approach to personalize query recommendation
作者：
Li, Xiao-yun;Yu, Ying*
期刊：
Communications in Computer and Information Science ,2017年727(1):100-109 ISSN：1865-0929
通讯作者：
Yu, Ying
作者机构：
[Li, Xiao-yun; Yu, Ying] Univ South China, Sch Comp Sci & Technol, Hengyang, Hunan, Peoples R China.
通讯机构：
[Yu, Ying] U;Univ South China, Sch Comp Sci & Technol, Hengyang, Hunan, Peoples R China.
会议名称：
3rd International Conference of Pioneering Computer Scientists, Engineers and Educators (ICPCSEE)
会议时间：
SEP 22-24, 2017
会议地点：
Cent S Univ, Changsha, PEOPLES R CHINA
会议主办单位：
Cent S Univ
会议论文集名称：
Communications in Computer and Information Science
关键词：
Desktop data;Query recommendation;Search task;User model;Work task
摘要：
Query recommendation is an effective method to help users describe their search intentions. In a personalized system, cold-start and the data sparsity were unavoidable, which directly lead to deficien
语种：
英文
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从构造角度突破计算思维教学的探索
作者：
王颖
期刊：
教育教学论坛 ,2017年(37):142-144 ISSN：1674-9324
作者机构：
南华大学 计算机科学与技术学院,湖南 衡阳,421001
关键词：
计算思维;教学;构造
摘要：
计算思维教学目前已成为大学计算机基础课程的教学热点，但其教学内容、教学模式及教学方法等教学要素都还处在探索和研究阶段。本文认为，计算思维的教学核心应该是思维，要突破思维的教学，关键是要让学生在思维过程中通过比较、分析、实践等活动理解和掌握计算思维的科学思维方法。鉴于此，本文主张计算思维教学应紧扣计算思维的构造本质，让学生由浅入深地学习和理解计算世界的经典构造样例，潜移默化地获取计算思维能力。
语种：
中文
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基于AMQP的即时通讯系统的实现
作者：
张乐
期刊：
电子技术与软件工程 ,2017年(05):46-47 ISSN：2095-5650
作者机构：
湖南省衡阳市南华大学计算机学院
关键词：
即时通讯
摘要：
针对现在移动互联网复杂、信号不稳定的网络特点,设计了一套以Rabbit MQ消息中间件的即时通讯系统,在确保服务质量的情况下,减少了消息的冗余,减少了应用间的耦合关系。使移动设备更加省电省流量,适用于当今移动互联网。
语种：
中文
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基于FPGA的简易电子琴设计
作者：
王丽君;李萌
期刊：
电子科技 ,2017年30(5):62-64+86 ISSN：1007-7820
作者机构：
南华大学电气工程学院,湖南衡阳,421001;南华大学计算机科学与技术学院,湖南衡阳,421001;[李萌; 王丽君] 南华大学
关键词：
电子琴;数控分频器;数码管
摘要：
介绍了一种基于在系统可编程门阵列（FPGA）的简易电子琴设计方法,可实现手动弹奏、自动演奏预存乐曲和简谱码显示功能。该设计的主体部分采用超高速集成电路硬件描述语言（VHDL）编程实现。根据简谱记录的频率产生方式,通过数控分频器将基准频率按一定的分频比分频,得到乐曲中所有音符信号的频率,再由驱动电路驱动发声或接耳机,便可实现乐曲的弹奏或播放功能,用数码管和发光管来显示输出音名对应的简谱码。该方法设计简单、修改方便、设计周期短,实验证明了该设计的可行性,具有一定的实用价值。
语种：
中文
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