Pub Date : 2013-10-01DOI: 10.1109/TENCON.2013.6719030
Y. Feng, Qinghua Huang
Each node in wireless sensor network has limited energy for communication and computation, so how to reduce the energy consumption efficiently is an important research problem. In this paper, we propose a fully distributed expectation maximization algorithm (FDEM) for acoustic source localization to reduce communication cost significantly. It just requires local data transmission and simple computation. Each sensor node transmits energy observations to its nearest neighbors (nodes within one-hop communication range) and also receives energy observations from its nearest neighbors. Long range wireless communication is avoided and the energy is saved. Simulation results for a static source localization and a moving source tracking demonstrate that the FDEM algorithm can provide a good tradeoff between localization accuracy and communication cost.
{"title":"Fully distributed acoustic source localization in wireless sensor network","authors":"Y. Feng, Qinghua Huang","doi":"10.1109/TENCON.2013.6719030","DOIUrl":"https://doi.org/10.1109/TENCON.2013.6719030","url":null,"abstract":"Each node in wireless sensor network has limited energy for communication and computation, so how to reduce the energy consumption efficiently is an important research problem. In this paper, we propose a fully distributed expectation maximization algorithm (FDEM) for acoustic source localization to reduce communication cost significantly. It just requires local data transmission and simple computation. Each sensor node transmits energy observations to its nearest neighbors (nodes within one-hop communication range) and also receives energy observations from its nearest neighbors. Long range wireless communication is avoided and the energy is saved. Simulation results for a static source localization and a moving source tracking demonstrate that the FDEM algorithm can provide a good tradeoff between localization accuracy and communication cost.","PeriodicalId":425023,"journal":{"name":"2013 IEEE International Conference of IEEE Region 10 (TENCON 2013)","volume":"154 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115922759","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 : 2013-10-01DOI: 10.1109/TENCON.2013.6718981
Kai Zhang, Yangyu Fan, Jiadong Xu, C. Qu
The design and implementation of a broadband single-layer low cost reflectarray is studied in this paper. The element in the reflectarray provides a nearly 360° linear phase range and have rebirth capability. The reflectarray is fed by a printed microstrip log-periodic dipole antenna. Using a sub-wavelength arrangement of element enables the reflectarray to achieve broadband characteristic. Then, a prime-focus 256-element reflectarray with phoenix cell is designed and measured. The maximum measurement gain is about 21dB at 5.2GHz. The measurement results also show 27.5% 3-dB gain bandwidth in the range 4.4~5.8GHz.
{"title":"Design of broadband, low cost single layer reflectarray using phoenix cell","authors":"Kai Zhang, Yangyu Fan, Jiadong Xu, C. Qu","doi":"10.1109/TENCON.2013.6718981","DOIUrl":"https://doi.org/10.1109/TENCON.2013.6718981","url":null,"abstract":"The design and implementation of a broadband single-layer low cost reflectarray is studied in this paper. The element in the reflectarray provides a nearly 360° linear phase range and have rebirth capability. The reflectarray is fed by a printed microstrip log-periodic dipole antenna. Using a sub-wavelength arrangement of element enables the reflectarray to achieve broadband characteristic. Then, a prime-focus 256-element reflectarray with phoenix cell is designed and measured. The maximum measurement gain is about 21dB at 5.2GHz. The measurement results also show 27.5% 3-dB gain bandwidth in the range 4.4~5.8GHz.","PeriodicalId":425023,"journal":{"name":"2013 IEEE International Conference of IEEE Region 10 (TENCON 2013)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130149184","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 : 2013-10-01DOI: 10.1109/TENCON.2013.6718800
Hao Yang, Baohui Zhang, Qing Wang, Shiyi Ma
This paper puts forwards a novel adaptive underfrequency load shedding method preventing system collapse under severe active-power deficits. The method has advantages over existing self-adaptive schemes in that it can accurately estimate the actual active-power deficit without knowing the system equivalent inertia, system boundary or constructing a control center. The method only measures the local load active-power, local frequency and the rate of change of frequency to obtain the control quantity. The decentralized implementation ensures the high reliability and simplicity of the method. The algorithm theory is strictly derived to show the correctness of the method. The theory analytically confirms that the control accuracy is equal to the existing adaptive ones and that the method outperforms in both flexibility and cost. Based on the theory, the overall control structure is introduced. Simulation results on typical system with various conditions verify the control effectiveness and adaptability when compared with commonly used under-frequency load shedding schemes in China.
{"title":"A novel self-adaptive underfrequency load shedding method based on local measurements","authors":"Hao Yang, Baohui Zhang, Qing Wang, Shiyi Ma","doi":"10.1109/TENCON.2013.6718800","DOIUrl":"https://doi.org/10.1109/TENCON.2013.6718800","url":null,"abstract":"This paper puts forwards a novel adaptive underfrequency load shedding method preventing system collapse under severe active-power deficits. The method has advantages over existing self-adaptive schemes in that it can accurately estimate the actual active-power deficit without knowing the system equivalent inertia, system boundary or constructing a control center. The method only measures the local load active-power, local frequency and the rate of change of frequency to obtain the control quantity. The decentralized implementation ensures the high reliability and simplicity of the method. The algorithm theory is strictly derived to show the correctness of the method. The theory analytically confirms that the control accuracy is equal to the existing adaptive ones and that the method outperforms in both flexibility and cost. Based on the theory, the overall control structure is introduced. Simulation results on typical system with various conditions verify the control effectiveness and adaptability when compared with commonly used under-frequency load shedding schemes in China.","PeriodicalId":425023,"journal":{"name":"2013 IEEE International Conference of IEEE Region 10 (TENCON 2013)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134212109","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 : 2013-10-01DOI: 10.1109/TENCON.2013.6719073
Y. Sundarasaradula, A. Thanachayanont
This paper describes the design and realization of a low-noise, low-voltage, low-power CMOS logarithmic amplifier for bio-signal and neural recording applications. The proposed logarithmic amplifier is based on the progressive-compression parallel-summation architecture with DC offset cancellation feedback loop. A new fully differential limiting amplifier with bulk-driven current mirror active load is proposed to achieve larger voltage gain and low voltage operation. The proposed logarithmic amplifier was designed and simulated with process parameters from a standard 0.18-μm CMOS technology. The circuit operates with a single 0.7-V power supply voltage and dissipates 2.86 μW. The simulated input dynamic range is about 60 dB, which covers the input amplitudes ranging from 10 μV to 10 mV. The simulated -3-dB bandwidth of the amplifier is from 0.32 Hz to 22 kHz. The simulated total input-referred noise, integrated from 0.1 Hz to 10 kHz, is 4.41 μV.
{"title":"A 0.7-V, 2.86-µW low-noise logarithmic amplifier for neural recording system","authors":"Y. Sundarasaradula, A. Thanachayanont","doi":"10.1109/TENCON.2013.6719073","DOIUrl":"https://doi.org/10.1109/TENCON.2013.6719073","url":null,"abstract":"This paper describes the design and realization of a low-noise, low-voltage, low-power CMOS logarithmic amplifier for bio-signal and neural recording applications. The proposed logarithmic amplifier is based on the progressive-compression parallel-summation architecture with DC offset cancellation feedback loop. A new fully differential limiting amplifier with bulk-driven current mirror active load is proposed to achieve larger voltage gain and low voltage operation. The proposed logarithmic amplifier was designed and simulated with process parameters from a standard 0.18-μm CMOS technology. The circuit operates with a single 0.7-V power supply voltage and dissipates 2.86 μW. The simulated input dynamic range is about 60 dB, which covers the input amplitudes ranging from 10 μV to 10 mV. The simulated -3-dB bandwidth of the amplifier is from 0.32 Hz to 22 kHz. The simulated total input-referred noise, integrated from 0.1 Hz to 10 kHz, is 4.41 μV.","PeriodicalId":425023,"journal":{"name":"2013 IEEE International Conference of IEEE Region 10 (TENCON 2013)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132610382","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 : 2013-10-01DOI: 10.1109/TENCON.2013.6718923
Fusheng Wang, Xiaofei Wang, Zhangping Shao, Xing Zhang, Ping Liu
According to the problem that differential mode circulating current exists in the three-level modular grid-connected photovoltaic system with LC filter, the equivalent model of differential mode circulating current was proposed in this paper. Differential mode circulating current was divided into two types according to different loops. The admittance curve of differential mode circulating current between frequency and leakage inductance ratio was analyzed, and the conclusion was made that the first type of differential mode circulating current is much larger than the second type. Then, the parallel scheme with LCL filter is used, and the inductance ratio is reasonably designed to reduce the differential mode circulating current effectively. A three-level modular grid-connected photovoltaic system rated 10kW was built, and simulation results and experimental results demonstrate the correctness of the model analysis and reduction methods of zero-sequence circulating current.
{"title":"Differential mode circulating current reduction for three-level modular grid-connected photovoltaic system","authors":"Fusheng Wang, Xiaofei Wang, Zhangping Shao, Xing Zhang, Ping Liu","doi":"10.1109/TENCON.2013.6718923","DOIUrl":"https://doi.org/10.1109/TENCON.2013.6718923","url":null,"abstract":"According to the problem that differential mode circulating current exists in the three-level modular grid-connected photovoltaic system with LC filter, the equivalent model of differential mode circulating current was proposed in this paper. Differential mode circulating current was divided into two types according to different loops. The admittance curve of differential mode circulating current between frequency and leakage inductance ratio was analyzed, and the conclusion was made that the first type of differential mode circulating current is much larger than the second type. Then, the parallel scheme with LCL filter is used, and the inductance ratio is reasonably designed to reduce the differential mode circulating current effectively. A three-level modular grid-connected photovoltaic system rated 10kW was built, and simulation results and experimental results demonstrate the correctness of the model analysis and reduction methods of zero-sequence circulating current.","PeriodicalId":425023,"journal":{"name":"2013 IEEE International Conference of IEEE Region 10 (TENCON 2013)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130722015","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 : 2013-10-01DOI: 10.1109/TENCON.2013.6718837
Ming‐Fa Tsai, C. Tseng, Yu-Hsiang Lin
This paper presents the design of a power management simulator of an electric vehicle with auxiliary fuel cell and wind energy sources. The power system of the electric vehicle consists of a 1-kW hydrogen fuel cell and a 2-kW LiFePO4 battery. The supply of the system power is managed by a power management unit. Normally, the LiFePO4 battery is the main power of the electric vehicle with light load. But while the electric vehicle is climbing, the fuel cell stack will be added for more power supply. While the electric vehicle is going down or braking, the regenerated energy can be recharged to the LiFePO4 battery. The wind energy can be used to charge the LiFePO4 battery off line when its power is not full. Modeling of the whole power management system has been constructed by using PSIM simulation tool. Simulation results are provided to show the performance of the power management and control system.
{"title":"Power management and control of an electric vehicle with auxiliary fuel cell and wind energies","authors":"Ming‐Fa Tsai, C. Tseng, Yu-Hsiang Lin","doi":"10.1109/TENCON.2013.6718837","DOIUrl":"https://doi.org/10.1109/TENCON.2013.6718837","url":null,"abstract":"This paper presents the design of a power management simulator of an electric vehicle with auxiliary fuel cell and wind energy sources. The power system of the electric vehicle consists of a 1-kW hydrogen fuel cell and a 2-kW LiFePO4 battery. The supply of the system power is managed by a power management unit. Normally, the LiFePO4 battery is the main power of the electric vehicle with light load. But while the electric vehicle is climbing, the fuel cell stack will be added for more power supply. While the electric vehicle is going down or braking, the regenerated energy can be recharged to the LiFePO4 battery. The wind energy can be used to charge the LiFePO4 battery off line when its power is not full. Modeling of the whole power management system has been constructed by using PSIM simulation tool. Simulation results are provided to show the performance of the power management and control system.","PeriodicalId":425023,"journal":{"name":"2013 IEEE International Conference of IEEE Region 10 (TENCON 2013)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114351795","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 : 2013-10-01DOI: 10.1109/TENCON.2013.6718917
S. Hasan, Jinjun Liu, F. Liu, Haodong Zhang
This work presents a study on the theoretical and practical design of Coupled Inductor based Non-Isolated bi-directional converters of high voltage ratio. Coupled Inductor can be regarded as a tapped Inductor having windings with different individual characteristics and it can be modeled in terms of an ideal transformer. Usually transformer based DC-DC topologies are utilized in conventional bi-directional DC-DC converters because of the natural property of a transformer to provide the benefit of isolation. Moreover soft switching techniques such as Zero-voltage switching (ZVS) and Zero-current switching (ZCS) are achieved to increase efficiency by decreasing the switching losses. Unfortunately the use of more than 4 switches along with several passive components in transformer based topologies increases the costs and makes the topology more complex in terms of working and control. In this work a coupled inductor based bi-directional DC-DC target converter is studied emphasizing the basics of Coupled Inductor including its physics, it modeling in terms of an ideal transformer and its operation in the transformer mode to get a high Voltage ratio. Simulation results of a Coupled Inductor based boost converter are also given for basic understanding of the characteristic waveforms of a Coupled Inductor. Experiment results of an 80 Watt prototype of the target converter are given to verify the successful Coupled Inductor operation in the transformer mode to achieve the required high voltage ratio.
{"title":"Practical design considerations for coupled inductor based bi-directional Converters of high voltage ratio","authors":"S. Hasan, Jinjun Liu, F. Liu, Haodong Zhang","doi":"10.1109/TENCON.2013.6718917","DOIUrl":"https://doi.org/10.1109/TENCON.2013.6718917","url":null,"abstract":"This work presents a study on the theoretical and practical design of Coupled Inductor based Non-Isolated bi-directional converters of high voltage ratio. Coupled Inductor can be regarded as a tapped Inductor having windings with different individual characteristics and it can be modeled in terms of an ideal transformer. Usually transformer based DC-DC topologies are utilized in conventional bi-directional DC-DC converters because of the natural property of a transformer to provide the benefit of isolation. Moreover soft switching techniques such as Zero-voltage switching (ZVS) and Zero-current switching (ZCS) are achieved to increase efficiency by decreasing the switching losses. Unfortunately the use of more than 4 switches along with several passive components in transformer based topologies increases the costs and makes the topology more complex in terms of working and control. In this work a coupled inductor based bi-directional DC-DC target converter is studied emphasizing the basics of Coupled Inductor including its physics, it modeling in terms of an ideal transformer and its operation in the transformer mode to get a high Voltage ratio. Simulation results of a Coupled Inductor based boost converter are also given for basic understanding of the characteristic waveforms of a Coupled Inductor. Experiment results of an 80 Watt prototype of the target converter are given to verify the successful Coupled Inductor operation in the transformer mode to achieve the required high voltage ratio.","PeriodicalId":425023,"journal":{"name":"2013 IEEE International Conference of IEEE Region 10 (TENCON 2013)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114858008","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 : 2013-10-01DOI: 10.1109/TENCON.2013.6718989
Xirui Zhang, Zhiwen Liu, W. Liu, Yougen Xu
A closed-form solution for direction of arrival (DOA) estimation is presented for the spatially stretched tripole (SST) by adopting a quasi-vector-cross-product (QVCP) based scheme to deal with the mutual coupling problem. After deriving the sufficient condition for the proposed method, we design and study four specific types of SSTs in particular. Simulation results show that the proposed scheme significantly outperforms the traditional tripole-based one in the presence of mutual coupling, and the Cramér-Rao bound (CRB) curves for the ideal case have also verified the superiority of our proposed method.
{"title":"Quasi-vector-cross-product based direction finding algorithm with a Spatially Stretched tripole","authors":"Xirui Zhang, Zhiwen Liu, W. Liu, Yougen Xu","doi":"10.1109/TENCON.2013.6718989","DOIUrl":"https://doi.org/10.1109/TENCON.2013.6718989","url":null,"abstract":"A closed-form solution for direction of arrival (DOA) estimation is presented for the spatially stretched tripole (SST) by adopting a quasi-vector-cross-product (QVCP) based scheme to deal with the mutual coupling problem. After deriving the sufficient condition for the proposed method, we design and study four specific types of SSTs in particular. Simulation results show that the proposed scheme significantly outperforms the traditional tripole-based one in the presence of mutual coupling, and the Cramér-Rao bound (CRB) curves for the ideal case have also verified the superiority of our proposed method.","PeriodicalId":425023,"journal":{"name":"2013 IEEE International Conference of IEEE Region 10 (TENCON 2013)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114657309","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 : 2013-10-01DOI: 10.1109/TENCON.2013.6718918
Jingyu Wang, Ke Zhang, K. Madani, C. Sabourin
Environment perception is an important research issue for both unmanned ground vehicles and robots. To improve the capacity of perception, a visualized acoustic saliency feature extraction (VASFE) method based on both the short-time Fourier transform (STFT) and the Mel-Frequency Cepstrum Coefficient (MFCC) for environment sound signal processing is proposed in this paper. Sound signal is visualized by using the STFT algorithm as local image feature and the Mel-Frequency Cepstrum Coefficient (MFCC) is used to represent the local acoustic feature of the signal. The proposed VASFE method is tested by the natural sound data which collected from real world of both indoor and outdoor environment. The results show that this method is able to extract the saliency features of both long-term and short-term sound signal successfully and clearly, and conducts to very distinguishable features for future processing of environment sound information.
{"title":"A visualized acoustic saliency feature extraction method for environment sound signal processing","authors":"Jingyu Wang, Ke Zhang, K. Madani, C. Sabourin","doi":"10.1109/TENCON.2013.6718918","DOIUrl":"https://doi.org/10.1109/TENCON.2013.6718918","url":null,"abstract":"Environment perception is an important research issue for both unmanned ground vehicles and robots. To improve the capacity of perception, a visualized acoustic saliency feature extraction (VASFE) method based on both the short-time Fourier transform (STFT) and the Mel-Frequency Cepstrum Coefficient (MFCC) for environment sound signal processing is proposed in this paper. Sound signal is visualized by using the STFT algorithm as local image feature and the Mel-Frequency Cepstrum Coefficient (MFCC) is used to represent the local acoustic feature of the signal. The proposed VASFE method is tested by the natural sound data which collected from real world of both indoor and outdoor environment. The results show that this method is able to extract the saliency features of both long-term and short-term sound signal successfully and clearly, and conducts to very distinguishable features for future processing of environment sound information.","PeriodicalId":425023,"journal":{"name":"2013 IEEE International Conference of IEEE Region 10 (TENCON 2013)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115092197","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 : 2013-10-01DOI: 10.1109/TENCON.2013.6719042
Rui Hu, Qinghua Huang
A constrained Kalman beamforming (CKB) method in spherical harmonics domain is proposed to localize multiple sources captured by spherical arrays. It scans the Euclidean norm of the weights in three-dimensional space to estimate source directions. It can improve the accuracy of sound source localization when steering vector mismatch exits. Moreover, it has the advantage of rapid convergence and online implementation. Compared with the desired minimum variance distortionless response (MVDR) and diagonal loading (DL) methods, simulation results show that the proposed algorithm has robustness to arbitrary steering vector mismatch and low number of snapshots.
{"title":"Source localization using constrained Kalman beamforming in spherical harmonics domain","authors":"Rui Hu, Qinghua Huang","doi":"10.1109/TENCON.2013.6719042","DOIUrl":"https://doi.org/10.1109/TENCON.2013.6719042","url":null,"abstract":"A constrained Kalman beamforming (CKB) method in spherical harmonics domain is proposed to localize multiple sources captured by spherical arrays. It scans the Euclidean norm of the weights in three-dimensional space to estimate source directions. It can improve the accuracy of sound source localization when steering vector mismatch exits. Moreover, it has the advantage of rapid convergence and online implementation. Compared with the desired minimum variance distortionless response (MVDR) and diagonal loading (DL) methods, simulation results show that the proposed algorithm has robustness to arbitrary steering vector mismatch and low number of snapshots.","PeriodicalId":425023,"journal":{"name":"2013 IEEE International Conference of IEEE Region 10 (TENCON 2013)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116885045","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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