2017 International Conference on Computer, Communications and Electronics (Comptelix)最新文献_第9页

Cost effective and “high” power conversion efficiency ultra-thin film GaAs solar cell 具有成本效益和“高”功率转换效率的超薄膜砷化镓太阳能电池

2017 International Conference on Computer, Communications and Electronics (Comptelix) Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8004024

A. Bhatnagar, V. Janyani

引用次数: 3

A novel compact polarization independent triple band reject frequency selective surface for the security of wireless communication 一种用于无线通信安全的新型紧凑型极化无关三频带抑制选频面

2017 International Conference on Computer, Communications and Electronics (Comptelix) Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8003965

Monika Garg, Rekha Chahar, S. Yadav

{"title":"A novel compact polarization independent triple band reject frequency selective surface for the security of wireless communication","authors":"Monika Garg, Rekha Chahar, S. Yadav","doi":"10.1109/COMPTELIX.2017.8003965","DOIUrl":"https://doi.org/10.1109/COMPTELIX.2017.8003965","url":null,"abstract":"A periodic frequency selective surface (FSS) having triple frequency band reject behaviour has been proposed with a square and two dodecagon shaped element. These three elements of the FSS unit cell are embedded on the FR-4 substrate, which acts as a triple band reject filter on the frequency band 1.8 GHz, 2.5 GHz and 5.5GHz to avoid the leakage of GSM, WiMax and WLAN signal outside the building. The FR-4 substrate has the loss tangent of 0.02 and relative permittivity of 4.4 with the dimension of 0.12 λ × 0.12 λ that told us the compactness of the structure. The designed FSS has verified by its simulated results and realized in CST Microwave studio in frequency domain solver based on FDTD method as well as also verified in the ANSYS HFSS software. The proposed FSS exhibits more than 91% band reject characteristics for the frequency band 1.8 GHz, 2.5 GHz and 5.5GHz. The FSS unit-cell has symmetrical structure to allow the stable behaviour for both TE and TM mode with the variation of incident angles from 0°–60°. Moreover, the stable resonant frequency response and polarization independence has verified by all its simulated results.","PeriodicalId":6917,"journal":{"name":"2017 International Conference on Computer, Communications and Electronics (Comptelix)","volume":"12 1","pages":"206-210"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89352533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Digital image chaotic encryption and transmission using UIO 基于UIO的数字图像混沌加密与传输

2017 International Conference on Computer, Communications and Electronics (Comptelix) Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8003933

V. Sharma, B. Sharma, R. Nath

{"title":"Digital image chaotic encryption and transmission using UIO","authors":"V. Sharma, B. Sharma, R. Nath","doi":"10.1109/COMPTELIX.2017.8003933","DOIUrl":"https://doi.org/10.1109/COMPTELIX.2017.8003933","url":null,"abstract":"In present work, secure communication scheme for digital images based on discrete time unknown input observer (UIO) design blended with discrete time chaotic encryption is presented. Chaotic signals are pseudo random signals with no periodicity over infinite length. However, the series can be generated with the precise knowledge of the few parameters like system parameters and initial conditions of the chaotic system. With the given nature of pseudo-randomness and extreme sensitivity to parameters, chaotic sequences are ideal for encryption. In literature, these chaotic sequences are generally generated using continuous time chaotic systems. Since image data to be transmitted is in digital form and encryption algorithms are also executed on digital devices, so it is proposed to use discrete time chaotic communication scheme. Further, its effectiveness for encryption of digital images is also analyzed. To further enhance the security encrypted data is embedded in the dynamics of discrete time chaotic transmitter system. To recover the message at the receiver, design of discrete time UIO along with a procedure to recover unknown message signal using estimated states is given. Existence conditions for the UIO are analytically derived in terms of LMIs. Solution of these LMIs gives the observer design matrices. Robustness of UIO based chaotic communication scheme against attacks is analyzed by studying return maps of the transmitted signal. It is reported that security of chaotic communication scheme can be compromised by studying the return maps of the transmitted signal. To validate the proposed approach results of simulation and security analysis are presented.","PeriodicalId":6917,"journal":{"name":"2017 International Conference on Computer, Communications and Electronics (Comptelix)","volume":"10 1","pages":"32-37"},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89441103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Semantic network based knowledge representation for cognitive decision making in teaching electrical motor concepts 基于语义网络的电机概念教学认知决策知识表示

2017 International Conference on Computer, Communications and Electronics (Comptelix) Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8003954

A. Prajapati, D. Chaturvedi

引用次数: 2

Array of E shape patch antenna with DGS 带DGS的E形贴片天线阵列

2017 International Conference on Computer, Communications and Electronics (Comptelix) Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8003929

A. Dubey

引用次数: 8

Comparison of dielectric materials using unit-cell design approach of Microstrip Reflectarray Antenna 采用微带反射天线单元设计方法的介电材料比较

2017 International Conference on Computer, Communications and Electronics (Comptelix) Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8003996

Namrata V. Langhnoja, V. Dwivedi

引用次数: 1

Bandwidth enhancement of compact rectangular monopole UWB antenna using M-shaped strip with triple band notch characteristic 利用m形带三带陷波特性增强小型矩形单极超宽带天线的带宽

2017 International Conference on Computer, Communications and Electronics (Comptelix) Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8003976

H. S. Mewara, Rahul Kumawat, M. Sharma, I. B. Sharma

引用次数: 1

Direct ONU interconnection schemes towards latency-aware passive optical networks 面向延迟感知无源光网络的直接ONU互联方案

2017 International Conference on Computer, Communications and Electronics (Comptelix) Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8004022

A. Garg, V. Janyani

引用次数: 2

Application of Stochastic Fractal Search in order reduction of large scale LTI systems 随机分形搜索在大规模LTI系统降阶中的应用

2017 International Conference on Computer, Communications and Electronics (Comptelix) Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8003962

I. Khanam, G. Parmar

引用次数: 6

An efficient approach for stability preservation in model order reduction using moment matching technique 基于矩匹配技术的模型降阶稳定性保持方法

2017 International Conference on Computer, Communications and Electronics (Comptelix) Pub Date : 2017-07-01 DOI: 10.1109/COMPTELIX.2017.8004017

D. K. Sambariya, Aswant Kr. Sharma

引用次数: 5