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2010 International Symposium on Signals, Systems and Electronics最新文献

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Auto-adaptive harris corner detection algorithm based on block processing 基于块处理的自适应harris角点检测算法
2010 International Symposium on Signals, Systems and Electronics Pub Date : 2010-11-15 DOI: 10.1109/ISSSE.2010.5638297
S. Shen, Xiaolong Zhang, W. Heng
{"title":"Auto-adaptive harris corner detection algorithm based on block processing","authors":"S. Shen, Xiaolong Zhang, W. Heng","doi":"10.1109/ISSSE.2010.5638297","DOIUrl":"https://doi.org/10.1109/ISSSE.2010.5638297","url":null,"abstract":"To eliminate the problems of extracting false corners and losing information of real corners and overcome the difficulty in finding a universal threshold in the non-maximal inhibition for the processing of all pictures in the Harris corner detection algorithm, an auto-adaptive threshold is introduced in this paper in order to generate more accurate corners. In addition, a method of block processing to divide an image into several blocks and process each block independently is proposed to ensure that the corners detected are evenly distributed in the image without clustering and thus eliminate the possibility that some corners may be lost because of the sharp contrast in gray scale in different parts of the image. Experimental results showed that this improved algorithm outperformed traditional and previous methods both in accuracy and evenness of distribution of detected corners.","PeriodicalId":211786,"journal":{"name":"2010 International Symposium on Signals, Systems and Electronics","volume":"2011 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133719490","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: 13
Bandwidth-expanded U-slot patch antenna with shorting wall 带短壁的宽带扩展u槽贴片天线
2010 International Symposium on Signals, Systems and Electronics Pub Date : 2010-11-15 DOI: 10.1109/ISSSE.2010.5638213
Xinan Liu
{"title":"Bandwidth-expanded U-slot patch antenna with shorting wall","authors":"Xinan Liu","doi":"10.1109/ISSSE.2010.5638213","DOIUrl":"https://doi.org/10.1109/ISSSE.2010.5638213","url":null,"abstract":"Microwave U-slot patch antenna with shorting wall is suitable for ultra wideband (UWB) communication system on ceiling and aerocraft. This article introduces the simulation and the experiment of the UWB antenna model which increase its impedance bandwidth and gain bandwidth. The antenna bandwidth is expanded by the diversification designed for the feed pin. The simulation model and the test result are also presented and the results are found in well agreement. The impedance bandwidth of the antenna is compared with reference [1]. The research has made big advancement in expanding antenna bandwidth.","PeriodicalId":211786,"journal":{"name":"2010 International Symposium on Signals, Systems and Electronics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124813807","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
A compact dual-frequency wilkinson power divider with open-ended stubs 一个紧凑的双频威尔金森功率分压器与开放式存根
2010 International Symposium on Signals, Systems and Electronics Pub Date : 2010-11-15 DOI: 10.1109/ISSSE.2010.5638210
Lvxia Shao, Huiping Guo, Xueguan Liu, Wenfeng Cai, Lingfeng Mao
{"title":"A compact dual-frequency wilkinson power divider with open-ended stubs","authors":"Lvxia Shao, Huiping Guo, Xueguan Liu, Wenfeng Cai, Lingfeng Mao","doi":"10.1109/ISSSE.2010.5638210","DOIUrl":"https://doi.org/10.1109/ISSSE.2010.5638210","url":null,"abstract":"The T-network equivalent method for the quarter-wavelength transmission line has been extended to the arbitrary-length transmission line. With the help of using [A] matrix, the T-network equivalent circuit model for an arbitrary-length transmission line has been obtained. In order to validate such a method, a dual-frequency power divider, which works at 1 GHz and 1.8 GHz respectively, is designed, fabricated and measured. The results demonstrate that the size of the dual- frequency power divider can be miniaturized to 51.75% of the conventional dual-frequency power divider. Thus it is of great value in obtaining more compact, multifrequency RF font ends.","PeriodicalId":211786,"journal":{"name":"2010 International Symposium on Signals, Systems and Electronics","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128053734","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: 6
Wideband dual-circularly-polarized microstrip antenna 宽带双圆极化微带天线
2010 International Symposium on Signals, Systems and Electronics Pub Date : 2010-11-15 DOI: 10.1109/ISSSE.2010.5638202
M. Guo, S. Zhong
{"title":"Wideband dual-circularly-polarized microstrip antenna","authors":"M. Guo, S. Zhong","doi":"10.1109/ISSSE.2010.5638202","DOIUrl":"https://doi.org/10.1109/ISSSE.2010.5638202","url":null,"abstract":"This paper presents the structure and characteristics of a stacked circularly-polarized microstrip antenna with a wide band. The antenna is designed to enable the transmission and reception for dual-circularly-polarized (LHCP or RHCP) wideband signals. In simulation an impedance bandwidth of 33¿ and the axial ratio bandwidth of 30¿have been achieved. The use of dielectric foam makes the antenna light weight and low cost. These features make it ideal element for wideband applications as required by mobile satellite and wireless communication systems.","PeriodicalId":211786,"journal":{"name":"2010 International Symposium on Signals, Systems and Electronics","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129192585","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
Implementation of an improved active CMOS mixer with high linearity for wideband wireless systems 用于宽带无线系统的一种改进的高线性有源CMOS混频器的实现
2010 International Symposium on Signals, Systems and Electronics Pub Date : 2010-10-21 DOI: 10.1109/ISSSE.2010.5606937
Fan Xiang-ning, Zhang Lei, Zhu Chisheng, W. Rui
{"title":"Implementation of an improved active CMOS mixer with high linearity for wideband wireless systems","authors":"Fan Xiang-ning, Zhang Lei, Zhu Chisheng, W. Rui","doi":"10.1109/ISSSE.2010.5606937","DOIUrl":"https://doi.org/10.1109/ISSSE.2010.5606937","url":null,"abstract":"This paper designs and implements an direct up-conversion mixer based on RF CMOS process, which can be used in the up-link radio frequency (RF) front-end of a 2.4GHz wideband wireless system such as multimedia wireless sensor network (WSN). Firstly, Gilbert cell-based double-balanced structure is adopted in this design, which can effectively suppress the feed-through of the local oscillator (LO) signal to the RF port, and as well as that of the intermediate frequency (IF) signal to the RF port. Then, an improved Gilbert cell structure-based circuit is proposed by introducing source degeneration technique to improve the linearity of the up-mixer. LC resonant network is used as load of the mixer to select the first-order mixing items. Finally, the mixer is fabricated in TSMC 0.18μm 1P6M RF CMOS process. Measured results show that the mixer performs well and has better linearity, the input 1dB compression point is −1dBm, and the conversion gain is −0.5dB with the total current (including the mixer core and the buffer) of 16mA. The entire chip area (including the pads) is 780μm×560μm.","PeriodicalId":211786,"journal":{"name":"2010 International Symposium on Signals, Systems and Electronics","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116696614","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: 7
A corner-truncated patch scheme of bandwidth enhancement for open slot antenna 开槽天线带宽增强的角截断贴片方案
2010 International Symposium on Signals, Systems and Electronics Pub Date : 2010-10-21 DOI: 10.1109/ISSSE.2010.5606971
K. Song, Yingzeng Yin, Huan-huan Xie, S. Zuo, D. Xi
{"title":"A corner-truncated patch scheme of bandwidth enhancement for open slot antenna","authors":"K. Song, Yingzeng Yin, Huan-huan Xie, S. Zuo, D. Xi","doi":"10.1109/ISSSE.2010.5606971","DOIUrl":"https://doi.org/10.1109/ISSSE.2010.5606971","url":null,"abstract":"In this paper, a novel corner-truncated patch scheme is described to enhance the operation bandwidth of the open slot antenna for UWB applications. By truncating two corners from the rectangular patch, the bandwidth enhancement of the proposed open slot antenna is well realized. From the simulation and measurement results, it is shown that the corner-truncated patch scheme is an excellent approach, which can be used to make the proposed antenna match well over an enhanced impedance bandwidth of 10.45GHz (2.35~12.80GHz), or about 138% for a −10dB return loss. In addition, a parametric study has been investigated to understand the effects of the truncated corners and to optimize the performance of the proposed antenna.","PeriodicalId":211786,"journal":{"name":"2010 International Symposium on Signals, Systems and Electronics","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116951636","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: 8
Reconfigurable multiband antenna design for mobile phones 手机可重构多波段天线设计
2010 International Symposium on Signals, Systems and Electronics Pub Date : 2010-10-21 DOI: 10.1109/ISSSE.2010.5606958
Weiping Zhuo, Gang Yan, Donghai Yu
{"title":"Reconfigurable multiband antenna design for mobile phones","authors":"Weiping Zhuo, Gang Yan, Donghai Yu","doi":"10.1109/ISSSE.2010.5606958","DOIUrl":"https://doi.org/10.1109/ISSSE.2010.5606958","url":null,"abstract":"New designs for compact reconfigurable antennas are introduced for mobile phones. Based on the new antenna designs a reconfigurable multiband operating antenna using in mobile phone is studied which can select two groups of operation frequency bands adaptively by electronically. In particular, each group of frequency bands can serve several different communication systems which may include various combinations of GSM850, GSM900, DCS, PCS, and UMTS simultaneously. Therefore, a various of communication systems can be conveniently served through only one antenna by electronically selecting different antenna modes. One strong point is that through the different working modes, the total antenna physical volume can be reused which make the overall antenna pattern more compact. In the first design mode it can support GSM900, DCS1800, PCS1900, and UMTS. In the second antenna mode, it can cover GSM850, DCS1800, PCS1900, and UMTS. The designs are investigated when ideal switches is applied. The designs are verified through both numerical simulations and measurement of an experimental prototype. The result confirms good performance of the multiband reconfigurable antenna designs.","PeriodicalId":211786,"journal":{"name":"2010 International Symposium on Signals, Systems and Electronics","volume":"300 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123242091","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: 7
Design and implementation of WCDMA scanning receiver WCDMA扫描接收机的设计与实现
2010 International Symposium on Signals, Systems and Electronics Pub Date : 2010-10-21 DOI: 10.1109/ISSSE.2010.5607101
Wenhu Xu, Ling Tian, Zhengbo Jiang, Jin Liu, W. Hong
{"title":"Design and implementation of WCDMA scanning receiver","authors":"Wenhu Xu, Ling Tian, Zhengbo Jiang, Jin Liu, W. Hong","doi":"10.1109/ISSSE.2010.5607101","DOIUrl":"https://doi.org/10.1109/ISSSE.2010.5607101","url":null,"abstract":"The design and implementation of a WCDMA scanning receiver for network planning and optimization is presented in this paper. The scanning receiver is designed for cells quick searching of WCDMA network. Once a cell is detected, some cell specific parameters are then measured and the performance of the received signal from base station can also be evaluated. Based on these measurements, the operator can optimize the wireless coverage performance and improve the quality of service.","PeriodicalId":211786,"journal":{"name":"2010 International Symposium on Signals, Systems and Electronics","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115248018","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
LA and HARQ combined optimization based on QoS prediction 基于QoS预测的LA和HARQ组合优化
2010 International Symposium on Signals, Systems and Electronics Pub Date : 2010-10-21 DOI: 10.1109/ISSSE.2010.5606991
Jinbao Zhang, Zaichen Zhang, Wei Heng, Z. Tan, Q. Guo
{"title":"LA and HARQ combined optimization based on QoS prediction","authors":"Jinbao Zhang, Zaichen Zhang, Wei Heng, Z. Tan, Q. Guo","doi":"10.1109/ISSSE.2010.5606991","DOIUrl":"https://doi.org/10.1109/ISSSE.2010.5606991","url":null,"abstract":"Link Adaptation (LA) and Hybrid Automatic Repeat reQuest (HARQ) are seen as effective methods to enhance performance of wireless communications. However, most of them tend to divide LA and HARQ into two independent parts, and optimization has been made in each part respectively. It is obvious that LA promotes efficiency by decreasing robustness of wireless transmissions, while HARQ is just the opposite. So LA and HARQ should be optimized with one unified criterion to make full use of capability of wireless communications. To this question, a unified QoS criterion for LA and HARQ is proposed. Then combined optimization on LA and HARQ is deduced based on this proposed criterion. By placing both the two techniques under one evaluating framework of QoS, LA and HARQ are not optimized independently but synthetically from the view of QoS, and performance gain is achieved. Both theoretical demonstration and simulation results have validated that the proposed optimization will enhance QoS for wireless transmissions.","PeriodicalId":211786,"journal":{"name":"2010 International Symposium on Signals, Systems and Electronics","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122321278","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
Fault-tolerance and noise modelling in nanoscale circuit design 纳米电路设计中的容错与噪声建模
2010 International Symposium on Signals, Systems and Electronics Pub Date : 2010-10-21 DOI: 10.1109/ISSSE.2010.5606936
J. Anwer, Ahmad Fayyaz, M. Masud, S. F. Shaukat, U. Khalid, N. H. Hamid
{"title":"Fault-tolerance and noise modelling in nanoscale circuit design","authors":"J. Anwer, Ahmad Fayyaz, M. Masud, S. F. Shaukat, U. Khalid, N. H. Hamid","doi":"10.1109/ISSSE.2010.5606936","DOIUrl":"https://doi.org/10.1109/ISSSE.2010.5606936","url":null,"abstract":"Fault-tolerance in integrated circuit design has become an alarming issue for circuit designers and semiconductor industries wishing to downscale transistor dimensions to their utmost. The motivation to conduct research on fault-tolerant design is backed by the observation that the noise which was ineffective in the large-dimension circuits is expected to cause a significant downgraded performance in low-scaled transistor operation of future CMOS technology models. This paper is destined to give an overview of all the major fault-tolerance techniques and noise models proposed so far. Summing and analysing all this work, we have divided the literature into three categories and discussed their applicability in terms of proposing circuit design modifications, finding output error probability or methods proposed to achieve highly accurate simulation results.","PeriodicalId":211786,"journal":{"name":"2010 International Symposium on Signals, Systems and Electronics","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122493721","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
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