Pub Date : 2014-04-14DOI: 10.1109/TENCONSPRING.2014.6862991
B. Xu, S. Binczak, S. Jacquir, O. Pont, H. Yahia
To study the cardiac arrhythmia, an in vitro experimental model and Multielectrodes Array (MEA) are used. This platform serves as an intermediary of the electrical activities of cardiac cells and the signal processing / dynamics analysis. Through it the extracellular potential of cardiac cells is acquired, allowing a real-time monitoring / analyzing. Since MEA has 60 electrodes / channels dispatched in a rectangular region, it allows real-time monitoring and signal acquisition on multiple sites. The in vitro experimental model (cardiomyocytes cultures from newborn rats'heart) is directly prepared on the MEA. This carefully prepared culture has similar parameters as cell of human's heart. In order to discriminate the cardiac arrhythmia, complexity analysis methods (Approximate Entropy, ApEn and Sample Entropy, SampEn) are used especially taking into account noise. The results showed that, in case of arrhythmia, the ApEn and SampEn are reduced to about 50% of the original entropies. Both parameters could be used as factors to discriminate arrhythmia. Moreover, from a point of view of biophysics this decrease 50% of Entropy coincides with the bifurcation (periods, attractors etc.) in case of arrhythmia which have been reported previously. It supports once more the hypothesis that in case of cardiac arrhythmia, the heart entered into chaos which helps to better understand the mechanism of atrial fibrillation.
{"title":"Complexity analysis of experimental cardiac arrhythmia","authors":"B. Xu, S. Binczak, S. Jacquir, O. Pont, H. Yahia","doi":"10.1109/TENCONSPRING.2014.6862991","DOIUrl":"https://doi.org/10.1109/TENCONSPRING.2014.6862991","url":null,"abstract":"To study the cardiac arrhythmia, an in vitro experimental model and Multielectrodes Array (MEA) are used. This platform serves as an intermediary of the electrical activities of cardiac cells and the signal processing / dynamics analysis. Through it the extracellular potential of cardiac cells is acquired, allowing a real-time monitoring / analyzing. Since MEA has 60 electrodes / channels dispatched in a rectangular region, it allows real-time monitoring and signal acquisition on multiple sites. The in vitro experimental model (cardiomyocytes cultures from newborn rats'heart) is directly prepared on the MEA. This carefully prepared culture has similar parameters as cell of human's heart. In order to discriminate the cardiac arrhythmia, complexity analysis methods (Approximate Entropy, ApEn and Sample Entropy, SampEn) are used especially taking into account noise. The results showed that, in case of arrhythmia, the ApEn and SampEn are reduced to about 50% of the original entropies. Both parameters could be used as factors to discriminate arrhythmia. Moreover, from a point of view of biophysics this decrease 50% of Entropy coincides with the bifurcation (periods, attractors etc.) in case of arrhythmia which have been reported previously. It supports once more the hypothesis that in case of cardiac arrhythmia, the heart entered into chaos which helps to better understand the mechanism of atrial fibrillation.","PeriodicalId":270495,"journal":{"name":"2014 IEEE REGION 10 SYMPOSIUM","volume":"1 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":"129241605","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}
Pub Date : 2014-04-14DOI: 10.1109/TENCONSPRING.2014.6862990
F. Redzwan, M. Ali, M. N. Md Tan, N. Miswadi
The design of single band Planar Inverted F Antenna (PIFA) for Long Term Evolution (LTE) mobile application is presented in this paper. The antenna consists of a rectangular planar element located above the Flame Retardant 4 (FR4) dielectric substrate. The ground plane is on the bottom side of the substrate. Total dimension of PIFA is 21.72 mm × 18.5 mm × 4mm and has been optimized to cover the LTE Band 7 application at 2600 MHz frequency. This antenna is suitable for mounting on the mobile phone due to its low profile, small size, and good gain. The proposed antenna is simulated using CST Microwave Studio 2011 to study its performance in term of return loss, VSWR and gain.
介绍了一种用于长期演进(LTE)移动应用的单波段平面倒F天线(PIFA)的设计。天线由位于阻燃剂4 (FR4)介电基板上方的矩形平面元件组成。接平面在基板的底部。PIFA的总尺寸为21.72 mm × 18.5 mm × 4mm，并经过优化以覆盖2600 MHz频率的LTE Band 7应用。该天线外形小巧，体积小，增益好，适合安装在手机上。利用CST Microwave Studio 2011对该天线进行了仿真，从回波损耗、驻波比和增益等方面对其性能进行了研究。
{"title":"Design of Planar Inverted F Antenna for LTE mobile phone application","authors":"F. Redzwan, M. Ali, M. N. Md Tan, N. Miswadi","doi":"10.1109/TENCONSPRING.2014.6862990","DOIUrl":"https://doi.org/10.1109/TENCONSPRING.2014.6862990","url":null,"abstract":"The design of single band Planar Inverted F Antenna (PIFA) for Long Term Evolution (LTE) mobile application is presented in this paper. The antenna consists of a rectangular planar element located above the Flame Retardant 4 (FR4) dielectric substrate. The ground plane is on the bottom side of the substrate. Total dimension of PIFA is 21.72 mm × 18.5 mm × 4mm and has been optimized to cover the LTE Band 7 application at 2600 MHz frequency. This antenna is suitable for mounting on the mobile phone due to its low profile, small size, and good gain. The proposed antenna is simulated using CST Microwave Studio 2011 to study its performance in term of return loss, VSWR and gain.","PeriodicalId":270495,"journal":{"name":"2014 IEEE REGION 10 SYMPOSIUM","volume":"51 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":"127600447","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}
Pub Date : 2014-04-14DOI: 10.1109/TENCONSPRING.2014.6863090
Koksheik Wong, Kiyoshi Tanaka
In recent years, the GPS location information can be effortlessly obtained through smart devices such as smart phone, tablet PC and camera. The obtained GPS information can be utilized for two main purposes, namely geo-tagging and tracking. GPS enabled various innovative applications such as photo album arrangement, tracking of taxi/bus, estimation of calories burned during an outdoor cycling session, etc. However, the storage of GPS information has not been addressed sufficiently and hence it can be easily tampered. This study surveys the current storage method for GPS location information. The drawbacks are identified and the data embedding approach is proposed as a more flexibly and practical way in storing the GPS location information. In particular, data embedding methods are proposed to embed the GPS information in text, audio, image and video contents that can be handled by a smart device. Discussion on possible applications are also presented.
{"title":"Data embedding for geo-tagging any contents in smart device","authors":"Koksheik Wong, Kiyoshi Tanaka","doi":"10.1109/TENCONSPRING.2014.6863090","DOIUrl":"https://doi.org/10.1109/TENCONSPRING.2014.6863090","url":null,"abstract":"In recent years, the GPS location information can be effortlessly obtained through smart devices such as smart phone, tablet PC and camera. The obtained GPS information can be utilized for two main purposes, namely geo-tagging and tracking. GPS enabled various innovative applications such as photo album arrangement, tracking of taxi/bus, estimation of calories burned during an outdoor cycling session, etc. However, the storage of GPS information has not been addressed sufficiently and hence it can be easily tampered. This study surveys the current storage method for GPS location information. The drawbacks are identified and the data embedding approach is proposed as a more flexibly and practical way in storing the GPS location information. In particular, data embedding methods are proposed to embed the GPS information in text, audio, image and video contents that can be handled by a smart device. Discussion on possible applications are also presented.","PeriodicalId":270495,"journal":{"name":"2014 IEEE REGION 10 SYMPOSIUM","volume":"121 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":"130116894","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}
Pub Date : 2014-04-14DOI: 10.1109/TENCONSPRING.2014.6863079
S. Javed, N. Ahmad
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.
{"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}
Pub Date : 2014-04-14DOI: 10.1109/TENCONSPRING.2014.6863108
B. Siva Kumar Reddy, Lakshmi Boppana
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.
移动WiMAX是一种基于OFDM/OFDMA技术的宽带无线接入，采用自适应调制和编码(AMC)方案来实现更高的数据速率。在AWGN和瑞利衰落信道中，采用一种基于信道估计参数的选择策略来确定调制和编码方案(MCS)的电平。通过改变通道模型和FFT大小，对不同的阈值进行了MCS电平选择。利用卷积编码器、RMG (Reed-Muller- golay)编码器和RM (Reed-Muller)编码器在AWGN和二进制对称信道上通过改变每个字节的比特数和GNU Radio Companion中的调制方案来研究WiMAX物理层的误码率(BER)执行。本文分析了在数字调制和卷积码率下的各种2×2 MIMO框架。本文的目的是提供一个关于使用GNU Radio部署多天线系统比单天线系统的好处的想法。
{"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}
Pub Date : 2014-04-14DOI: 10.1109/TENCONSPRING.2014.6863098
Z. Mahmoodin, W. Mansor, K. Y. Lee, N. Mohamad
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.
{"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}
Pub Date : 2014-04-14DOI: 10.1109/TENCONSPRING.2014.6863053
B. Rajkumarsingh, S. B. Rai
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.
本工作描述了一种使用无速率码的不等错误保护，即Luby变换码(LT码)，具有块复制，在加性高斯白噪声(AWGN)信道上。采用环形星座作为调制技术，对不同层次的数据进行独立编码。在有噪声的信道中，由于所有的比特都被噪声破坏，索引替换的概念不能被使用;符号不再被正确接收或完全丢失。在这项工作中，提出了一种新的方法来避免在块复制中需要替换索引。这被称为指数平均。研究发现，将块复制应用于最重要比特(Most Important Bits, MIB)可以获得比以往基于不等错误保护(UEP)的方案更好的性能。
{"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}
Pub Date : 2014-04-14DOI: 10.1109/TENCONSPRING.2014.6863092
Minglei Cui, L. Zou, Xue-gang Wang
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.
{"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}
Pub Date : 2014-04-14DOI: 10.1109/TENCONSPRING.2014.6863113
S. Daliman, S. Rahman, S. A. Abu Bakar, I. Busu
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.
{"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}
Pub Date : 2014-04-14DOI: 10.1109/TENCONSPRING.2014.6863034
M. M. Mansor, S. Rahim, U. Hashim
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.
{"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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：