Pub Date : 2012-05-15DOI: 10.1109/IRANIANCEE.2012.6292565
S. H. Safavi, M. Ardebilipour, V. Jamali, M. Ahmadian
A cooperative bidirectional relaying scheme based on distributed relay beamforming is proposed for an underlay cognitive radio network which consists of two secondary transceivers and K cognitive relay nodes and a primary network with a transmitter and receiver, all equipped with single antenna. For this network we assume that the second-order statistics of the channel coefficients between the relays and primary network is available. Also the perfect channel state information (CSI) is assumed for secondary network. Here, we propose a signal-to-interference plus noise-ratio (SINR) Balancing based on distributed relay beamforming. Our aim is to design the beamforming coefficients to maximize quality of service (QoS) for the secondary network while satisfying tolerable interference constraint for the primary network. Using semidefinite relaxation we turned this problem into convex feasibility problem which can be solved along with bisection search method. Our simulation results show that the uncertainty about the channel coefficients can be degrade the performance of the network considerably. Also as we increased the tolerable interference on primary receiver, the maximum achievable SINR is increased.
{"title":"Distributed beamforming for SINR balancing approach in cognitive two-way relay networks with imperfect channel state information","authors":"S. H. Safavi, M. Ardebilipour, V. Jamali, M. Ahmadian","doi":"10.1109/IRANIANCEE.2012.6292565","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2012.6292565","url":null,"abstract":"A cooperative bidirectional relaying scheme based on distributed relay beamforming is proposed for an underlay cognitive radio network which consists of two secondary transceivers and K cognitive relay nodes and a primary network with a transmitter and receiver, all equipped with single antenna. For this network we assume that the second-order statistics of the channel coefficients between the relays and primary network is available. Also the perfect channel state information (CSI) is assumed for secondary network. Here, we propose a signal-to-interference plus noise-ratio (SINR) Balancing based on distributed relay beamforming. Our aim is to design the beamforming coefficients to maximize quality of service (QoS) for the secondary network while satisfying tolerable interference constraint for the primary network. Using semidefinite relaxation we turned this problem into convex feasibility problem which can be solved along with bisection search method. Our simulation results show that the uncertainty about the channel coefficients can be degrade the performance of the network considerably. Also as we increased the tolerable interference on primary receiver, the maximum achievable SINR is increased.","PeriodicalId":308726,"journal":{"name":"20th Iranian Conference on Electrical Engineering (ICEE2012)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127497828","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 : 2012-05-15DOI: 10.1109/IRANIANCEE.2012.6292613
M. Rezaeian, G. Hossein-Zadeh, H. Soltanian-Zadeh
Chemical exchange saturation transfer (CEST) is a new mechanism of contrast generation in magnetic resonance imaging (MRI) which differentiates molecule biomarkers via chemical shift. CEST MRI contrast mechanism is complex and depends on radio frequency (RF) pulses used in experimental conditions. To find the optimal RF pulse, numerical solutions of Bloch-McConnell equations may be used. The purpose of this work is to compare the effects of different RF pulses on the CEST phenomenon. First, a two-pool exchange model for CEST in MRI is used. Z-spectra and signal calculations for the two-pool model have been carried out for some RF pulses. Efficiency of both continuous and binomial RF pulses is investigated by calculating three parameters, namely: CEST image contrast, flip angle and specific absorption ratio (SAR). The contrast of CEST image is considered proportional to amount of saturation. As a binomial RF pulse, WALTZ-16* demonstrates a good efficiency, but generates some unwanted direct saturations. On the other hand, continuous RF pulses do not create any unwanted direct saturation, but have less efficiency.
{"title":"Numerical solutions to the Bloch-McConnell equations with radio frequency irradiation scheme for CEST MRI","authors":"M. Rezaeian, G. Hossein-Zadeh, H. Soltanian-Zadeh","doi":"10.1109/IRANIANCEE.2012.6292613","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2012.6292613","url":null,"abstract":"Chemical exchange saturation transfer (CEST) is a new mechanism of contrast generation in magnetic resonance imaging (MRI) which differentiates molecule biomarkers via chemical shift. CEST MRI contrast mechanism is complex and depends on radio frequency (RF) pulses used in experimental conditions. To find the optimal RF pulse, numerical solutions of Bloch-McConnell equations may be used. The purpose of this work is to compare the effects of different RF pulses on the CEST phenomenon. First, a two-pool exchange model for CEST in MRI is used. Z-spectra and signal calculations for the two-pool model have been carried out for some RF pulses. Efficiency of both continuous and binomial RF pulses is investigated by calculating three parameters, namely: CEST image contrast, flip angle and specific absorption ratio (SAR). The contrast of CEST image is considered proportional to amount of saturation. As a binomial RF pulse, WALTZ-16* demonstrates a good efficiency, but generates some unwanted direct saturations. On the other hand, continuous RF pulses do not create any unwanted direct saturation, but have less efficiency.","PeriodicalId":308726,"journal":{"name":"20th Iranian Conference on Electrical Engineering (ICEE2012)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130622170","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 : 2012-05-15DOI: 10.1109/IRANIANCEE.2012.6292398
Saeid Razavi Nesaz, E. Babaei, K. J. Khasraghi
In this paper, the operational of step-up dc-dc converter with high voltage efficiency is analyzed. The amount of critical inductance is calculated between continuous conduction mode (CCM) and discontinuous conduction mode (DCM).In addition, the amount of critical inductance is computed between complete inductor supply mode (CISM) and incomplete inductor supply mode (IISM). Moreover, the output voltage ripple (OVR) is analyzed in definite limitation of input voltage and output load resistance. The maximum output voltage ripple (MOVR) is calculated based on computed converter parameters and ultimately for obtaining minimum ripple of maximum output voltage, the amount of minimum inductance should be computed. The simulation result in software PSCAD/EMTDC is also presented for reconfirming and proving the obtained mathematical theories.
{"title":"Analysis of operational modes of step-up dc-dc converter with high voltage gain and calculation of output voltage ripple","authors":"Saeid Razavi Nesaz, E. Babaei, K. J. Khasraghi","doi":"10.1109/IRANIANCEE.2012.6292398","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2012.6292398","url":null,"abstract":"In this paper, the operational of step-up dc-dc converter with high voltage efficiency is analyzed. The amount of critical inductance is calculated between continuous conduction mode (CCM) and discontinuous conduction mode (DCM).In addition, the amount of critical inductance is computed between complete inductor supply mode (CISM) and incomplete inductor supply mode (IISM). Moreover, the output voltage ripple (OVR) is analyzed in definite limitation of input voltage and output load resistance. The maximum output voltage ripple (MOVR) is calculated based on computed converter parameters and ultimately for obtaining minimum ripple of maximum output voltage, the amount of minimum inductance should be computed. The simulation result in software PSCAD/EMTDC is also presented for reconfirming and proving the obtained mathematical theories.","PeriodicalId":308726,"journal":{"name":"20th Iranian Conference on Electrical Engineering (ICEE2012)","volume":"10 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132407306","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 : 2012-05-15DOI: 10.1109/IRANIANCEE.2012.6292382
M. Nilkar, E. Babaei, M. Sabahi
This paper proposes a new multilevel inverter with a fewer number of power electronic switching devices and gate drive circuits. In comparison with other classical topologies such as cascade H-bridge and neutral-point-clamped multilevel inverters, the proposed topology can generate more numbers of voltage levels at the output. The proposed inverter consists of cascade connected four-level basic cell inverters and a conventional H-bridge. Less number of the switches leads to the reduction of size and weight, simple gate drive and control strategy, high efficiency, low power consumption and also increases the total reliability of the inverter. The simulation results obtained from PSCAD/EMTDC software confirm the validation of the proposed configuration advantages and its theoretical operation and control method.
{"title":"A new single-phase cascade multilevel inverter topology using four-level cells","authors":"M. Nilkar, E. Babaei, M. Sabahi","doi":"10.1109/IRANIANCEE.2012.6292382","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2012.6292382","url":null,"abstract":"This paper proposes a new multilevel inverter with a fewer number of power electronic switching devices and gate drive circuits. In comparison with other classical topologies such as cascade H-bridge and neutral-point-clamped multilevel inverters, the proposed topology can generate more numbers of voltage levels at the output. The proposed inverter consists of cascade connected four-level basic cell inverters and a conventional H-bridge. Less number of the switches leads to the reduction of size and weight, simple gate drive and control strategy, high efficiency, low power consumption and also increases the total reliability of the inverter. The simulation results obtained from PSCAD/EMTDC software confirm the validation of the proposed configuration advantages and its theoretical operation and control method.","PeriodicalId":308726,"journal":{"name":"20th Iranian Conference on Electrical Engineering (ICEE2012)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132328283","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 : 2012-05-15DOI: 10.1109/IRANIANCEE.2012.6292366
A. Livani, H. Kaatuzian
Parallel-fed travelling wave photo detectors (TWPDs) are used frequently in high power, high bandwidth applications. However increasing the number of photodiodes within their structure in order to increasing high power capabilities significantly reduces bandwidth. So there is trade-off. We have improved -3dB bandwidth of a parallel-fed TWPD, with four photodiodes, by varying its structural parameters. Resultant bandwidth of the photo detector is 105GHz which shows 25GHz improvement with respect to TWPDs that have been reported previously. S22 of this photo detector is below -10dB within its bandwidth which shows that Bragg frequency is much higher than bandwidth.
{"title":"Improving bandwidth of parallel-fed travelling wave photo detectors","authors":"A. Livani, H. Kaatuzian","doi":"10.1109/IRANIANCEE.2012.6292366","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2012.6292366","url":null,"abstract":"Parallel-fed travelling wave photo detectors (TWPDs) are used frequently in high power, high bandwidth applications. However increasing the number of photodiodes within their structure in order to increasing high power capabilities significantly reduces bandwidth. So there is trade-off. We have improved -3dB bandwidth of a parallel-fed TWPD, with four photodiodes, by varying its structural parameters. Resultant bandwidth of the photo detector is 105GHz which shows 25GHz improvement with respect to TWPDs that have been reported previously. S22 of this photo detector is below -10dB within its bandwidth which shows that Bragg frequency is much higher than bandwidth.","PeriodicalId":308726,"journal":{"name":"20th Iranian Conference on Electrical Engineering (ICEE2012)","volume":"37 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131672662","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 : 2012-05-15DOI: 10.1109/IRANIANCEE.2012.6292606
S. Abbaspour, A. Fallah, A. Maleki
Surface electromyograms (EMGs) are valuable in the pathophysiological study and clinical treatment. These recordings are critically often contaminated by cardiac artifact. The purpose of this article was to evaluate the performance of an adaptive filter and artificial neural network (ANN) in removing electrocardiogram (ECG) contamination from surface EMGs recorded from the pectoralismajor muscles. Performance of these methods was quantified by power spectral density, coherence, signal to noise ratio, relative error and cross correlation in simulated noisy EMG signals. In between these two methods the ANN has better results.
{"title":"A comparison of adaptive filter and artificial neural network results in removing electrocardiogram contamination from surface EMGs","authors":"S. Abbaspour, A. Fallah, A. Maleki","doi":"10.1109/IRANIANCEE.2012.6292606","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2012.6292606","url":null,"abstract":"Surface electromyograms (EMGs) are valuable in the pathophysiological study and clinical treatment. These recordings are critically often contaminated by cardiac artifact. The purpose of this article was to evaluate the performance of an adaptive filter and artificial neural network (ANN) in removing electrocardiogram (ECG) contamination from surface EMGs recorded from the pectoralismajor muscles. Performance of these methods was quantified by power spectral density, coherence, signal to noise ratio, relative error and cross correlation in simulated noisy EMG signals. In between these two methods the ANN has better results.","PeriodicalId":308726,"journal":{"name":"20th Iranian Conference on Electrical Engineering (ICEE2012)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128866589","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 : 2012-05-15DOI: 10.1109/IRANIANCEE.2012.6292552
M. R. Mousavi, M. Karimi, A. Jamshidi
In underwater applications, acoustic scattering from the sea surface must be considered in any system that utilizes surface-reflected acoustic energy. In this paper, we obtain spherical wave reflection coefficient approximately by expansion of a spherical wave into plane waves and using the method of stationary phase. The obtained spherical wave reflection coefficient depends on various parameters such as frequency and incidence angle of the spherical wave, the length of the path that connects the source to the receiver, and the root-mean-square (RMS) displacement of the rough sea surface. We verify that the spherical wave reflection coefficient approaches to the plane wave reflection coefficient in far field approximation. Finally, the statistical distribution of the spherical wave reflection coefficient is obtained considering statistical characteristics of the source and receiver positions.
{"title":"Approximation of spherical wave reflection coefficient from rough sea surface","authors":"M. R. Mousavi, M. Karimi, A. Jamshidi","doi":"10.1109/IRANIANCEE.2012.6292552","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2012.6292552","url":null,"abstract":"In underwater applications, acoustic scattering from the sea surface must be considered in any system that utilizes surface-reflected acoustic energy. In this paper, we obtain spherical wave reflection coefficient approximately by expansion of a spherical wave into plane waves and using the method of stationary phase. The obtained spherical wave reflection coefficient depends on various parameters such as frequency and incidence angle of the spherical wave, the length of the path that connects the source to the receiver, and the root-mean-square (RMS) displacement of the rough sea surface. We verify that the spherical wave reflection coefficient approaches to the plane wave reflection coefficient in far field approximation. Finally, the statistical distribution of the spherical wave reflection coefficient is obtained considering statistical characteristics of the source and receiver positions.","PeriodicalId":308726,"journal":{"name":"20th Iranian Conference on Electrical Engineering (ICEE2012)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125474408","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 : 2012-05-15DOI: 10.1109/IRANIANCEE.2012.6292605
F. Y. Rizi, S. Setarehdan
Speckle noise reduction is the first and important step for intravascular ultrasound (IVUS) image analysis. A comparison between the performances of the curvelet transform and adaptive complex diffusion filter method for ultrasound despeckling is presented in this paper. In this study, the adaptive complex diffusion filter which is widely used for despeckling, is applied to real intravascular ultrasound images and results were quantitatively and visually compared to that of curvelet based despeckling. The results show that curvelet based method outperforms the adaptive complex diffusion filter and can effectively reduce most of the speckle noise content of an intravascular ultrasound image.
{"title":"Noise reduction in intravascular ultrasound images using curvelet transform and adaptive complex diffusion filter: A comparative study","authors":"F. Y. Rizi, S. Setarehdan","doi":"10.1109/IRANIANCEE.2012.6292605","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2012.6292605","url":null,"abstract":"Speckle noise reduction is the first and important step for intravascular ultrasound (IVUS) image analysis. A comparison between the performances of the curvelet transform and adaptive complex diffusion filter method for ultrasound despeckling is presented in this paper. In this study, the adaptive complex diffusion filter which is widely used for despeckling, is applied to real intravascular ultrasound images and results were quantitatively and visually compared to that of curvelet based despeckling. The results show that curvelet based method outperforms the adaptive complex diffusion filter and can effectively reduce most of the speckle noise content of an intravascular ultrasound image.","PeriodicalId":308726,"journal":{"name":"20th Iranian Conference on Electrical Engineering (ICEE2012)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126677654","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 : 2012-05-15DOI: 10.1109/IRANIANCEE.2012.6292318
M. Mohebbi, H. Khormaei, R. Rezaei
We study an optical sensor in the infrared region of the spectrum based on a Mach-Zehnder interferometer assembled with two single-mode subwavelength diameter silica wires immersed in acetonitrile. We propose to use acetonitrile as the detecting solution, because it has negligible losses in the infrared wavelengths of 1300 nm and 1550 nm in contrast to water which has very high losses in the infrared. By bio-modifying the surface of the sensing wire, we can use the optical sensor to selectively detect nanoparticles. For nanoparticles with size of 12 nm and index of refraction of 1.4 forming a coating around the sensing wire, the propagation constant difference at the output of the optical sensor becomes a maximum for a wire diameter of 1.23 μm. By using a wire length of 955 μm, a maximum phase shift of π radians is obtained at the output of the Mach-Zehnder interferometer. An optical sensor using water as the detecting solution at an operating wavelength of 325 nm will require nanowires with diameter of 240 nm and length of 68 μm, which is much more difficult to implement. Effects of wavelength, wire diameter, and specimen thickness and index on the optical sensor are also studied.
{"title":"Modeling of an optical sensor for detection of nanoparticles at 1550 nm","authors":"M. Mohebbi, H. Khormaei, R. Rezaei","doi":"10.1109/IRANIANCEE.2012.6292318","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2012.6292318","url":null,"abstract":"We study an optical sensor in the infrared region of the spectrum based on a Mach-Zehnder interferometer assembled with two single-mode subwavelength diameter silica wires immersed in acetonitrile. We propose to use acetonitrile as the detecting solution, because it has negligible losses in the infrared wavelengths of 1300 nm and 1550 nm in contrast to water which has very high losses in the infrared. By bio-modifying the surface of the sensing wire, we can use the optical sensor to selectively detect nanoparticles. For nanoparticles with size of 12 nm and index of refraction of 1.4 forming a coating around the sensing wire, the propagation constant difference at the output of the optical sensor becomes a maximum for a wire diameter of 1.23 μm. By using a wire length of 955 μm, a maximum phase shift of π radians is obtained at the output of the Mach-Zehnder interferometer. An optical sensor using water as the detecting solution at an operating wavelength of 325 nm will require nanowires with diameter of 240 nm and length of 68 μm, which is much more difficult to implement. Effects of wavelength, wire diameter, and specimen thickness and index on the optical sensor are also studied.","PeriodicalId":308726,"journal":{"name":"20th Iranian Conference on Electrical Engineering (ICEE2012)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121570505","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 : 2012-05-15DOI: 10.1109/IRANIANCEE.2012.6292387
S. Mousavi-Aghdam, M. Sharifian
In this paper a new strategy for sensorless control of induction motors using adaptive sliding observer is presented. Variable structure and nonlinear controls such as sliding mode are used in most application with high robustness and reliability. In the proposed observer, rotor flux component is obtained using some electric equations in the stationary reference frame and Lyaponov function is used to estimate the motor speed. Simulation results demonstrated the proposed vector control for induction motor using adaptive sliding observer.
{"title":"Nonlinear adaptive observer for sensorless control of induction motors","authors":"S. Mousavi-Aghdam, M. Sharifian","doi":"10.1109/IRANIANCEE.2012.6292387","DOIUrl":"https://doi.org/10.1109/IRANIANCEE.2012.6292387","url":null,"abstract":"In this paper a new strategy for sensorless control of induction motors using adaptive sliding observer is presented. Variable structure and nonlinear controls such as sliding mode are used in most application with high robustness and reliability. In the proposed observer, rotor flux component is obtained using some electric equations in the stationary reference frame and Lyaponov function is used to estimate the motor speed. Simulation results demonstrated the proposed vector control for induction motor using adaptive sliding observer.","PeriodicalId":308726,"journal":{"name":"20th Iranian Conference on Electrical Engineering (ICEE2012)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122286601","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}
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