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Advantages of MIMO waveform in sidelobe blanker system MIMO波形在旁瓣消噪系统中的优点
2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA) Pub Date : 2012-11-01 DOI: 10.1109/ICEDSA.2012.6507807
A. Roshanzamir, M. Bastani
{"title":"Advantages of MIMO waveform in sidelobe blanker system","authors":"A. Roshanzamir, M. Bastani","doi":"10.1109/ICEDSA.2012.6507807","DOIUrl":"https://doi.org/10.1109/ICEDSA.2012.6507807","url":null,"abstract":"A multiple-input multiple-output (MIMO) radar system., unlike a standard phased array radar., can choose freely the probing signals transmitted via its antennas to maximize the power around the locations of the targets of interest., or more generally to approximate a given transmit beam-pattern., or to minimize the cross-correlation of the signals reflected back to the radar by the targets of interest. In this paper it will be shown that how these more degrees of freedom to choose freely between probing signals in a MIMO radar can help to have an omnidirectional beam-pattern for a side-lobe blanker system., and it will be shown that with utilizing MIMO radars for a side-lobe blanker system., one can achieve immunity respect to faults that may occurred during build processes.","PeriodicalId":132198,"journal":{"name":"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134016205","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
Electronic properties and electrical characteristics of modified PEDOT:PSS as a buffer layer in organic solar cell 改性PEDOT:PSS作为有机太阳能电池缓冲层的电子性能和电学特性
2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA) Pub Date : 2012-11-01 DOI: 10.1109/ICEDSA.2012.6507796
Z. A. Rahman, A. Shuhaimi, M. Rusop, K. Sulaiman
{"title":"Electronic properties and electrical characteristics of modified PEDOT:PSS as a buffer layer in organic solar cell","authors":"Z. A. Rahman, A. Shuhaimi, M. Rusop, K. Sulaiman","doi":"10.1109/ICEDSA.2012.6507796","DOIUrl":"https://doi.org/10.1109/ICEDSA.2012.6507796","url":null,"abstract":"In this work, the electrical characteristics of organic solar cell with glycerol doped PEDOT:PSS as buffer layer have been studied at room temperature. A 4% of glycerol has been mixed to the PEDOT:PSS. The electronic parameters such as ideality factor, barrier height, series resistance and shunt resistance of the device are calculated from the current-voltage plot. The glycerol doping procedure has enhanced the electrical junction mechanism in the PEDOT:PSS, thus improved the performance of the organic solar cell with the modified buffer layer.","PeriodicalId":132198,"journal":{"name":"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130085984","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 accurate way of determining BJT's switching loss in medium and high voltage applications 一种准确测定BJT中高压开关损耗的方法
2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA) Pub Date : 2012-11-01 DOI: 10.1109/ICEDSA.2012.6507793
S. Borekci, N. C. Acar
{"title":"An accurate way of determining BJT's switching loss in medium and high voltage applications","authors":"S. Borekci, N. C. Acar","doi":"10.1109/ICEDSA.2012.6507793","DOIUrl":"https://doi.org/10.1109/ICEDSA.2012.6507793","url":null,"abstract":"Semiconductors are widely used in power electronics applications as a switching device. In some applications, BJTs are used and their power loss calculation has a crucial effect on the temperature performance of transistors which must be in thermal limits. The power loss can be analyzed in three states; on, off and transition. In recent studies, on state loss has been calculated by estimation. In addition to that, in higher voltage applications, it is difficult to measure collector-emitter voltages (VCE) to calculate on and transient state losses correctly due to tolerances of voltage probes. An accurate power loss calculation method of BJT devices has been presented in this research in which the losses are evaluated by measuring only the base (IB) and the collector currents (Ic) without any estimation. The method does not require collector-emitter voltage measurements. The proposed method has been experimented on a current fed push-pull resonant inverter.","PeriodicalId":132198,"journal":{"name":"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117034680","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
Off-line testing of a d-q axis WPT based hybrid digital technique for differential protection of a salient pole synchronous generator 基于d-q轴WPT的凸极同步发电机差动保护混合数字技术的离线测试
2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA) Pub Date : 2012-11-01 DOI: 10.1109/ICEDSA.2012.6507815
A. Aktaibi, M. Rahman
{"title":"Off-line testing of a d-q axis WPT based hybrid digital technique for differential protection of a salient pole synchronous generator","authors":"A. Aktaibi, M. Rahman","doi":"10.1109/ICEDSA.2012.6507815","DOIUrl":"https://doi.org/10.1109/ICEDSA.2012.6507815","url":null,"abstract":"This paper presents the development and implementation of d-q axis components and wavelet packet transform (WPT) based hybrid technique for digital differential protection of salient pole synchronous generator. In this paper, the analysis is concentrated on the high frequency sub-band contents of WPT obtained from the d-q components of the differential currents of the relay. It has been found that the analysis in this approach provides information to detect any fault in the synchronous generator. This hybrid technique provides good accuracy and fast fault clearance with only one level of WPT of the d-q axis components of the current. Off-line results of the collected data from an experimental work are utilized for different cases of system disturbances.","PeriodicalId":132198,"journal":{"name":"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128756264","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
Optimization of diode model for enhancing the efficiency of RF energy harvesting circuits 提高射频能量收集电路效率的二极管模型优化
2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA) Pub Date : 2012-11-01 DOI: 10.1109/ICEDSA.2012.6507786
K. Alnuaimi, L. Albasha, N. Qaddoumi
{"title":"Optimization of diode model for enhancing the efficiency of RF energy harvesting circuits","authors":"K. Alnuaimi, L. Albasha, N. Qaddoumi","doi":"10.1109/ICEDSA.2012.6507786","DOIUrl":"https://doi.org/10.1109/ICEDSA.2012.6507786","url":null,"abstract":"In this paper we present an optimised design of diodes for operation in energy harvesting cells. The work was based on analysing which of the diode extended model mostly affected the conversion efficiency of the rectifier. A physical device model was then constructed, modelled and optimised to reduce dissipated energy through the rectifier.","PeriodicalId":132198,"journal":{"name":"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115616792","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
Interference rejection in UWB LNA using front-end triode MOSFET 用前端三极管MOSFET抑制UWB LNA干扰
2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA) Pub Date : 2012-11-01 DOI: 10.1109/ICEDSA.2012.6507776
H. Rezaei, E. Abiri, M. Salehi
{"title":"Interference rejection in UWB LNA using front-end triode MOSFET","authors":"H. Rezaei, E. Abiri, M. Salehi","doi":"10.1109/ICEDSA.2012.6507776","DOIUrl":"https://doi.org/10.1109/ICEDSA.2012.6507776","url":null,"abstract":"In this paper, an ultra wide band low noise amplifier (UWB LNA) with new input stage for interference rejection is presented. In this scheme, a common gate front end MOS device in triode mode is used to reject in-band and out-band interferences. Furthermore, advantage of weak inversion mode of MOS device is used. While this stage has no DC power consumption, it is possible to easily reject in band and out band interferences with 12.5 and 9.2 dB, respectively. In order to increase power gain of the circuit two stages are added as an amplifier to the circuit. Also, in order to improve the noise figure (NF) and bandwidth of the circuit, the advantages of thermal noise cancellation technique in the second stage and the series-peaking method in the output buffer are used. The circuit is design in 0.18 μm technology. Simulation results show peak gain of 17.6 dB in the low band (3.1-4.75 GHz) and 15.6 dB in the high band (6.1-10.6 GHz). Minimum NF in mentioned frequency band is 3 and 2.3 dB, respectively. Hence, this circuit rejects in band and out band interferences 15.6 and 11.5 dB, respectively, while UWB LNA consumes 16 mW DC power from 1.8 V. The s11 is less than -9.6 dB over entire bandwidth since worst value of IIP3 over entire bandwidth is -14 dBm which occurs at 10.6 GHz.","PeriodicalId":132198,"journal":{"name":"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127938829","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
Voltage-mode universal filter with one input and five outputs using five OTAs, two grounded capacitors and one resistor 电压模式通用滤波器，具有一个输入和五个输出，使用五个ota，两个接地电容器和一个电阻
2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA) Pub Date : 2012-11-01 DOI: 10.1109/ICEDSA.2012.6507785
M. Kumngern
{"title":"Voltage-mode universal filter with one input and five outputs using five OTAs, two grounded capacitors and one resistor","authors":"M. Kumngern","doi":"10.1109/ICEDSA.2012.6507785","DOIUrl":"https://doi.org/10.1109/ICEDSA.2012.6507785","url":null,"abstract":"This paper presents a new electronically tunable voltage-mode universal biquadratic filter with one input and five outputs employing five operational transconductance amplifiers, two grounded capacitors and one resistor. The filter can offer voltage-mode low-pass, band-pass, high-pass, band-stop and all-pass filter responses from the same circuit. The properties of the circuit such as no inverting-type input signal requirements, high-input impedance, orthogonal- and electronic-control of the natural frequency and the quality factor, are also possessed. Moreover, the active and passive sensitivities of the filter are low. PSPICE simulation results are provided to demonstrate the theoretical analysis.","PeriodicalId":132198,"journal":{"name":"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128325509","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
Effect of synthesis time on carbon nanotubes growth from palm oil as carbon source by thermal chemical vapor deposition method 热化学气相沉积法以棕榈油为碳源合成时间对碳纳米管生长的影响
2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA) Pub Date : 2012-11-01 DOI: 10.1109/ICEDSA.2012.6507792
A. Suriani, M. S. Azmina, M. Salina, A. Dalila, A. N. Falina, J. Rosly, M. Rusop
{"title":"Effect of synthesis time on carbon nanotubes growth from palm oil as carbon source by thermal chemical vapor deposition method","authors":"A. Suriani, M. S. Azmina, M. Salina, A. Dalila, A. N. Falina, J. Rosly, M. Rusop","doi":"10.1109/ICEDSA.2012.6507792","DOIUrl":"https://doi.org/10.1109/ICEDSA.2012.6507792","url":null,"abstract":"In this study, we report the effect of various synthesis times (30-90 mins) for the synthesis of carbon nanotubes (CNT). Bio-hydrocarbon precursor namely palm oil was utilized as a starting material by thermal vapor deposition method. Ferrocene at 5.33 wt% was directly mixed with palm oil precursor. The CNT were deposited on silicon substrates and then characterized by field emission scanning electron microscopy., micro-Raman spectroscopy and thermogravimetric analysis. The density., quality and the purity of the CNT were found to be highly dependent on the synthesis time. The 60 mins was considered to be the optimum synthesis time with uniform diameter around 23.6-28.1 nm with highest quality (ID/IG ratio = 0.42) and purity (80.01 %).","PeriodicalId":132198,"journal":{"name":"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)","volume":"21 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120981154","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
Microcalcifications segmentation using three edge detection techniques 基于三种边缘检测技术的微钙化分割
2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA) Pub Date : 2012-11-01 DOI: 10.1109/ICEDSA.2012.6507798
S. S. Yasiran, A. K. Jumaat, A. Malek, Fatin Hanani Hashim, Nor Dhaniah Nasrir, Syarifah Nurul Azirah Sayed Hassan, Normah Ahmad, Rozi Mahmud
{"title":"Microcalcifications segmentation using three edge detection techniques","authors":"S. S. Yasiran, A. K. Jumaat, A. Malek, Fatin Hanani Hashim, Nor Dhaniah Nasrir, Syarifah Nurul Azirah Sayed Hassan, Normah Ahmad, Rozi Mahmud","doi":"10.1109/ICEDSA.2012.6507798","DOIUrl":"https://doi.org/10.1109/ICEDSA.2012.6507798","url":null,"abstract":"Edge detection has been widely used especially in medical image processing field. In this paper we are comparing Sobel, Prewitt and Laplacian of Gaussian (LoG) edge detection techniques in segmenting the boundary of microcalcifications. The edge detection must satisfy the breast phantom scoring criteria before the segmentation phase is carried out. Then, all of the edge detection techniques are implemented in the Enhanced Distance Active Contour (EDAC) model for the segmentation process. Results obtained from Area Under the Curve (AUC) of the Receiver Operating Characteristic (ROC) curve shows that the Prewitt edge detection has the highest value of AUC, followed by the Sobel and LoG which are 0.79, 0.72 and 0.71 respectively.","PeriodicalId":132198,"journal":{"name":"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116105297","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: 12
Simulation of novel non-adjacent component carriers in LTE-Advanced LTE-Advanced中新型非相邻分量载波的仿真
2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA) Pub Date : 2012-11-01 DOI: 10.1109/ICEDSA.2012.6507809
A. Z. Yonis, M. Abdullah
{"title":"Simulation of novel non-adjacent component carriers in LTE-Advanced","authors":"A. Z. Yonis, M. Abdullah","doi":"10.1109/ICEDSA.2012.6507809","DOIUrl":"https://doi.org/10.1109/ICEDSA.2012.6507809","url":null,"abstract":"Long Term Evolution-Advanced (LTE-A) is becoming the first choice of operators when constructing the new network infrastructure, because of its high throughput and low latency. Although the L TE-A can offer high speed data service as a benefit of wideband application, the large bandwidth also results in huge control signaling cost. Additionally the L TE bands may not be large enough in many countries to enable contiguous spectrum use. It is for this reason that non-contiguous LTE carrier aggregation work is on-going. LTE-Advanced carrier aggregation using non-contiguous spectrum, while possible is challenging in terms of its implementation. This paper presents a novel design of non-contiguous component carriers (CCs) in order to reach 120 MHz to have range of CC up to 100 MHz instead of maximum 80 MHz in the normal LTE-Advanced. The system is designed and implemented in two main cases; the first when it has four CCs broadcasted on the 100 MHz and the second case when the system has five CCs broadcasted on the 120 MHz. These two cases are analyzed to show the main performance of LTE-A after increasing the bandwidth of non-contiguous CCs.","PeriodicalId":132198,"journal":{"name":"2012 IEEE International Conference on Electronics Design, Systems and Applications (ICEDSA)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122357488","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
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