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Design of low profile ultra wideband PIFA for MIMO applications 用于MIMO应用的低轮廓超宽带PIFA设计
2014 IEEE REGION 10 SYMPOSIUM Pub Date : 2014-04-14 DOI: 10.1109/TENCONSPRING.2014.6863069
H. Singh, G. Pandey, P. K. Bharti, M. K. Meshram
{"title":"Design of low profile ultra wideband PIFA for MIMO applications","authors":"H. Singh, G. Pandey, P. K. Bharti, M. K. Meshram","doi":"10.1109/TENCONSPRING.2014.6863069","DOIUrl":"https://doi.org/10.1109/TENCONSPRING.2014.6863069","url":null,"abstract":"A low profile ultrawide band (UWB) planar inverted-F antenna (PIFA) for multiple input multiple output (MIMO) applications is studied. This antenna consists of rectangular monopole as a feed plate and top loaded rectangular plate. The assembly of feed plate and top loaded rectangular monopole is grounded through shorting wall. The size of top loaded rectangular plate and rectangular feed plate are chosen 20 × 10 mm2 and 14 × 6.75 mm2 respectively. The proposed antenna covers the frequency range from 3.0-10.8 GHz with impedance bandwidth of 113 % and isolation between antenna elements is obtained less than -15 dB without any isolation improvement techniques. The diversity performances is analyzed for evaluation of diversity antenna. Antenna is also characterized by S-parameters, far field radiation patterns, efficiency, and peak realized gain. Fidelity factor for proposed antenna is calculated to characterize time domain behaviour. The optimized structure is fabricated and tested. The acceptable agreement is obtained between simulated and measured results.","PeriodicalId":270495,"journal":{"name":"2014 IEEE REGION 10 SYMPOSIUM","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128103529","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
Junction discontinuity effect in multi-element coupled lines and its compensation 多元耦合线路中的结不连续效应及其补偿
2014 IEEE REGION 10 SYMPOSIUM Pub Date : 2014-04-14 DOI: 10.1109/TENCONSPRING.2014.6863051
R. Yadav, Sunil Kumar, S. Kulkarni
{"title":"Junction discontinuity effect in multi-element coupled lines and its compensation","authors":"R. Yadav, Sunil Kumar, S. Kulkarni","doi":"10.1109/TENCONSPRING.2014.6863051","DOIUrl":"https://doi.org/10.1109/TENCONSPRING.2014.6863051","url":null,"abstract":"In multi-element coupled lines, the effect of junction discontinuity is unavoidable. These are found prominent in the high power coupled lines for HF and VHF applications because of larger structural dimensions. For the development of a 200kW tandem 3±0.2dB ultra-wideband hybrid coupler, design and simulation of a 3-elements 8.34±0.2dB coupled section is performed. In simulation results, coupling and output parameters of the designed coupled section are found significantly deteriorated from the theoretical prediction. The problem is investigated and found associated to the effect junction discontinuity. Junctions that are employed to join the elements produce undesirable reactive effect known as junction discontinuity effect. An analysis of the junction discontinuity effect in multi-element coupled lines and its compensation using novel approach is presented.","PeriodicalId":270495,"journal":{"name":"2014 IEEE REGION 10 SYMPOSIUM","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131943776","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
A hybrid feature and discriminant classifier for high accuracy handwritten Odia numeral recognition 基于特征与判别分类器的高精度手写体数字识别
2014 IEEE REGION 10 SYMPOSIUM Pub Date : 2014-04-14 DOI: 10.1109/TENCONSPRING.2014.6863091
K. S. Dash, N. Puhan, G. Panda
{"title":"A hybrid feature and discriminant classifier for high accuracy handwritten Odia numeral recognition","authors":"K. S. Dash, N. Puhan, G. Panda","doi":"10.1109/TENCONSPRING.2014.6863091","DOIUrl":"https://doi.org/10.1109/TENCONSPRING.2014.6863091","url":null,"abstract":"Unconstrained handwritten character recognition is a major research area where there is a lot of scope for improving accuracy. There are many statistical, structural feature extraction techniques being proposed for different languages. Many classifier models are combined with these features to obtain high recognition rates. There still exists a gap between the recognition accuracy of printed characters and unconstrained handwritten scripts. Odia is a popular and classical language of the eastern part of India. Though the research in Optical Character Recognition (OCR) has advanced in other Indian languages such as Devanagari and Bangla, not much attention has been given to Odia character recognition. We propose a hybrid feature extraction technique using Kirsch gradient operator and curvature properties of handwritten numerals, followed by a feature dimension reduction using Principal Component Analysis (PCA). We use Modified Quadratic Discriminant Function (MQDF), Discriminative Learning Quadratic Discriminant Function (DLQDF) classifiers as they provide high accuracy of recognition and compare both the classifier performances. We verify our results using the Odia numerals database of ISI Kolkata. The recognition accuracy for Odia numerals with our proposed approach is found to be 98.5%.","PeriodicalId":270495,"journal":{"name":"2014 IEEE REGION 10 SYMPOSIUM","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132070320","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: 26
An adaptive noise cancelation model for removal of noise from modeled ECG signals 一种自适应噪声消除模型，用于去除建模心电信号中的噪声
2014 IEEE REGION 10 SYMPOSIUM Pub Date : 2014-04-14 DOI: 10.1109/TENCONSPRING.2014.6863079
S. Javed, N. Ahmad
{"title":"An adaptive noise cancelation model for removal of noise from modeled ECG signals","authors":"S. Javed, N. Ahmad","doi":"10.1109/TENCONSPRING.2014.6863079","DOIUrl":"https://doi.org/10.1109/TENCONSPRING.2014.6863079","url":null,"abstract":"In this paper an adaptive noise cancelation (ANC) model is presented to remove baseline wander (BW) noise from mathematically modeled ECG signals. The ANC model is designed to have a trade-off between the correlation properties of noise and reference signals. Matlab is used to simulate ECG signals artificially, to represent different sinus rhythms and leads of ECG waveform. Furthermore contamination of an important artifact (baseline wander) is simulated for normal ECG lead II, and then identified using LMS algorithm and its preconditioned versions: NLMS and TDLMS algorithms, to get denoised ECG signals. Experimental results are presented for a comparison of these adaptive algorithm, which shows preference of TDLMS algorithm over the rest.","PeriodicalId":270495,"journal":{"name":"2014 IEEE REGION 10 SYMPOSIUM","volume":"144 41","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114052551","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: 11
Adaptive modulation coding in MIMO-OFDM for WiMAX using GNU Radio 基于GNU无线电的WiMAX MIMO-OFDM自适应调制编码
2014 IEEE REGION 10 SYMPOSIUM Pub Date : 2014-04-14 DOI: 10.1109/TENCONSPRING.2014.6863108
B. Siva Kumar Reddy, Lakshmi Boppana
{"title":"Adaptive modulation coding in MIMO-OFDM for WiMAX using GNU Radio","authors":"B. Siva Kumar Reddy, Lakshmi Boppana","doi":"10.1109/TENCONSPRING.2014.6863108","DOIUrl":"https://doi.org/10.1109/TENCONSPRING.2014.6863108","url":null,"abstract":"Mobile WiMAX is a broadband wireless access based on OFDM/OFDMA technology which employs Adaptive Modulation and Coding (AMC) scheme to attain higher data rates. In this paper, a selection strategy is incorporated with GNU Radio for the determination of Modulation and Coding Scheme (MCS) level dependent upon channel estimation parameter over AWGN and Rayleigh fading channels. MCS level choice has been done for different threshold values by varying channel model and FFT size. BER (Bit Error Rate) execution of WiMAX physical layer is investigated utilizing Convolutional coder, RMG (Reed-Muller-Golay) coder and RM (Reed-Muller) coders over AWGN and Binary Symmetric Channels by changing number of bits for every byte and modulation schemes in GNU Radio Companion. In this paper, various 2×2 MIMO frameworks are analysed under digital modulations and Convolutional code rates. The aim of this paper is to provide a thought about the benefits of multiple antenna systems over single antenna systems deployments using GNU Radio.","PeriodicalId":270495,"journal":{"name":"2014 IEEE REGION 10 SYMPOSIUM","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124425970","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: 5
Processing of electroencephalogram signals using OpenVibe 使用OpenVibe处理脑电图信号
2014 IEEE REGION 10 SYMPOSIUM Pub Date : 2014-04-14 DOI: 10.1109/TENCONSPRING.2014.6863098
Z. Mahmoodin, W. Mansor, K. Y. Lee, N. Mohamad
{"title":"Processing of electroencephalogram signals using OpenVibe","authors":"Z. Mahmoodin, W. Mansor, K. Y. Lee, N. Mohamad","doi":"10.1109/TENCONSPRING.2014.6863098","DOIUrl":"https://doi.org/10.1109/TENCONSPRING.2014.6863098","url":null,"abstract":"Gaining insight into the brain electrical activities and understanding its workings gives a clearer indication of neurological defect that may exist in a subject by comparing it with the norm. It can be also be used to improve cognitive function and provide the basis in the workings of the increasingly popular Brain Computer Interface (BCI) applications. Electroencephalogram (EEG) signals provide information in the analysis of the brain functionality but the amount of data to be process is normally huge and requires the use of specialized software. It is also important that the processed EEG signals are then represented with proper visualizing aids to better assists clinicians and researchers in the process of interpretation. This paper describes the processing of EEG signals using an open source software called OpenVibe which provide graphical representation of a subject EEG band power features and power spectrum analysis along with 2D electrode mapping topography.","PeriodicalId":270495,"journal":{"name":"2014 IEEE REGION 10 SYMPOSIUM","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114666946","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: 4
LT codes with block duplication and ring type constellation for unequal error protection 具有块复制和环形星座的非等错误保护的LT码
2014 IEEE REGION 10 SYMPOSIUM Pub Date : 2014-04-14 DOI: 10.1109/TENCONSPRING.2014.6863053
B. Rajkumarsingh, S. B. Rai
{"title":"LT codes with block duplication and ring type constellation for unequal error protection","authors":"B. Rajkumarsingh, S. B. Rai","doi":"10.1109/TENCONSPRING.2014.6863053","DOIUrl":"https://doi.org/10.1109/TENCONSPRING.2014.6863053","url":null,"abstract":"This work describes an unequal error protection using a rateless code namely Luby transform codes (LT codes), with block duplication, over Additive White Gaussian Noise (AWGN) channel. Ring type constellation is used as modulation technique to encode the different levels of data independently. In noisy channels, the index replacing concept cannot be used because all the bits are corrupted by noise; symbols are no more either correctly received or completely lost. In this work, a new method has been proposed to circumvent the need for index replacing in block duplication. This is called Index Averaging. It is found that block duplication applied to the Most Important Bits (MIB) leads to a better performance than previous Unequal Error Protection (UEP) based schemes.","PeriodicalId":270495,"journal":{"name":"2014 IEEE REGION 10 SYMPOSIUM","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127134008","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: 0
An ultra-low sidelobe pulse-compression filter 超低旁瓣脉冲压缩滤波器
2014 IEEE REGION 10 SYMPOSIUM Pub Date : 2014-04-14 DOI: 10.1109/TENCONSPRING.2014.6863092
Minglei Cui, L. Zou, Xue-gang Wang
{"title":"An ultra-low sidelobe pulse-compression filter","authors":"Minglei Cui, L. Zou, Xue-gang Wang","doi":"10.1109/TENCONSPRING.2014.6863092","DOIUrl":"https://doi.org/10.1109/TENCONSPRING.2014.6863092","url":null,"abstract":"Pulse compression is widely used in modern radar as signal processing approach to enable long-range detection and good resolution to be achieved simultaneously. The successful application of pulse compression techniques depends largely on reduction of the range sidelobes. Aimed at range sidelobes reduction of the LFM pulse compression result, a new weighting pulse-compression filter is presented, based on the spectrum modification technique. The design and implementation of this filter is exhibited in detail. Subsequent performance analysis shows that after filtered by the proposed filter, the best Ratio of Mainlobe to Sidelobe (RMS) of output short pulse is below -75dB. Furthermore, the RMS of compression output with different Doppler shift is presented to prove the proposed filter can be applied in most radar applications.","PeriodicalId":270495,"journal":{"name":"2014 IEEE REGION 10 SYMPOSIUM","volume":"6 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124447346","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: 3
Segmentation of oil palm area based on GLCM-SVM and NDVI 基于GLCM-SVM和NDVI的油棕面积分割
2014 IEEE REGION 10 SYMPOSIUM Pub Date : 2014-04-14 DOI: 10.1109/TENCONSPRING.2014.6863113
S. Daliman, S. Rahman, S. A. Abu Bakar, I. Busu
{"title":"Segmentation of oil palm area based on GLCM-SVM and NDVI","authors":"S. Daliman, S. Rahman, S. A. Abu Bakar, I. Busu","doi":"10.1109/TENCONSPRING.2014.6863113","DOIUrl":"https://doi.org/10.1109/TENCONSPRING.2014.6863113","url":null,"abstract":"This paper presents application of texture analysis using gray-level co-occurrence matrix (GLCM) for segmentation of oil palm area based on WorldView-2 imagery data. Different parameters of GLCM consisting of five distance spacing and three directions will be calculated, where eight texture features will be extracted. Based on land-use categories determined in WorldView-2 image, the features for oil palm and non-oil palm will be trained and classified using support vector machine (SVM). Segmentation based on 10×10, 20×20, 40×40 and 80×80 window will be determined by using the resulting output of SVM classification. Then, the normalized difference vegetation index (NDVI) of segmentation area will be calculated. Accuracy of oil palm area segmentation will be determined. The resulting segmentation of oil palm area shows a promising result that it can be used for intention of developing automatic oil palm tree counting.","PeriodicalId":270495,"journal":{"name":"2014 IEEE REGION 10 SYMPOSIUM","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131451870","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: 15
A CPW-fed 2.45 GHz wearable antenna using conductive nanomaterials for on-body applications 一种使用导电纳米材料的cpw馈电2.45 GHz可穿戴天线
2014 IEEE REGION 10 SYMPOSIUM Pub Date : 2014-04-14 DOI: 10.1109/TENCONSPRING.2014.6863034
M. M. Mansor, S. Rahim, U. Hashim
{"title":"A CPW-fed 2.45 GHz wearable antenna using conductive nanomaterials for on-body applications","authors":"M. M. Mansor, S. Rahim, U. Hashim","doi":"10.1109/TENCONSPRING.2014.6863034","DOIUrl":"https://doi.org/10.1109/TENCONSPRING.2014.6863034","url":null,"abstract":"A CPW-fed 2.45 GHz wearable monopole antenna using conductive nanomaterial with different conductivity for on-body applications is presented. The proposed antenna are consists of a rectangular patch with improved ground-plane structures using graphene and carbon nanotubes (CNTs) on flexible polydimethysiloxane (PDMS) substrate. The performance characteristic of proposed is characterized and compared with the reference antenna using copper, conventional conductive material for antenna. A good agreement on characteristic between proposed and reference antenna where 18% bandwidth improvement is observed on the proposed design. Meanwhile, significant improvement on antenna gain is observed while integrating graphene on antenna patch and ground. Significant bandwidth improvement is observed when improving the ground structure by introducing horizontal slit cutting and vertical stub. The antenna reflection coefficient characteristic is degrade near to the -10 dB is observed when applied on the voxel human model around upper arm area.","PeriodicalId":270495,"journal":{"name":"2014 IEEE REGION 10 SYMPOSIUM","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115007196","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: 10
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