Based on joint iterative optimization, a robust widely linear (WL) reduced-rank minimum variance distortion less response (MVDR) beam forming algorithm is proposed for noncircular signals. To handle the issue of the mismatch between the presumed array steering vector and actual array steering vector, a diagonal loading technique is devised. As the proposed beam former takes advantage of the noncircular properties of source signals, it performs better than the reduced-rank robust joint iterative optimization (JIO) and the WL reduced-rank JIO adaptive beam formers. Simulation results shows that the proposed beam former provides faster convergence speed, larger output signal-to-interference-plus-noise gain and less mean square errors than the existing approaches.
{"title":"Robust Widely Linear Reduced-Rank Adaptive Beamforming Based on Joint Iterative Optimization","authors":"Yonghua Wang, Lei Huang, Yunmei Shi","doi":"10.1109/IMCCC.2014.82","DOIUrl":"https://doi.org/10.1109/IMCCC.2014.82","url":null,"abstract":"Based on joint iterative optimization, a robust widely linear (WL) reduced-rank minimum variance distortion less response (MVDR) beam forming algorithm is proposed for noncircular signals. To handle the issue of the mismatch between the presumed array steering vector and actual array steering vector, a diagonal loading technique is devised. As the proposed beam former takes advantage of the noncircular properties of source signals, it performs better than the reduced-rank robust joint iterative optimization (JIO) and the WL reduced-rank JIO adaptive beam formers. Simulation results shows that the proposed beam former provides faster convergence speed, larger output signal-to-interference-plus-noise gain and less mean square errors than the existing approaches.","PeriodicalId":152074,"journal":{"name":"2014 Fourth International Conference on Instrumentation and Measurement, Computer, Communication and Control","volume":"493 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123052779","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}
Electricity energy was wasted greatly for light load and low efficiency of beam pumping unit system used in oil field. So, the vector variable frequency speed regulating technology is studied to adjust the rotational speed of oil-field motor dynamically. So that it can be adjusted according to the load of pumping unit. And closed-loop controller of pumping unit system was designed by adjusting motor speed. Design and implementation for pumping unit system of Fuzzy PIcontroller optimized by GA is proposed in this paper. The simulation research in Simulink shows that dynamic of speed control and fast start-up performance are improved, overshoot is suppressed effectively, and it has stronger adaptability and better effect.
{"title":"Research on Fuzzy PI Control Based on Genetic Algorithms for Beam Pumping Unit","authors":"Li Peng, Zhang Zeng-Xiu, Wang Chao, Zhang Yi-hui","doi":"10.1109/IMCCC.2014.23","DOIUrl":"https://doi.org/10.1109/IMCCC.2014.23","url":null,"abstract":"Electricity energy was wasted greatly for light load and low efficiency of beam pumping unit system used in oil field. So, the vector variable frequency speed regulating technology is studied to adjust the rotational speed of oil-field motor dynamically. So that it can be adjusted according to the load of pumping unit. And closed-loop controller of pumping unit system was designed by adjusting motor speed. Design and implementation for pumping unit system of Fuzzy PIcontroller optimized by GA is proposed in this paper. The simulation research in Simulink shows that dynamic of speed control and fast start-up performance are improved, overshoot is suppressed effectively, and it has stronger adaptability and better effect.","PeriodicalId":152074,"journal":{"name":"2014 Fourth International Conference on Instrumentation and Measurement, Computer, Communication and Control","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121712180","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}
Electromagnetic vibration is produced by radial magnetic force waves acting on stator core of claw pole alternator. This paper analyzes the magnetic vibration and noise of mobile claw pole alternator. A new effective method to reduce radial magnetic force for claw pole alternator was proposed based on eccentric magnetic poles. The expressions of eccentric pole magneto motive force Fourier transform were established. The relationship between the radial magnetic force amplitude and the eccentric distance was acquired. It is shown that according to the suitable eccentric magnetic poles, the radial magnetic force and noise can be reduced. The finite element method results and experiment test verified the availability of the proposed method.
{"title":"Reduction of Radial Magnetic Force Waves Based on Eccentric Magnetic Pole for Claw Pole Alternator","authors":"Jiaqing Li, Qiong Wei, Fan Yang, X. Bao","doi":"10.1109/IMCCC.2014.20","DOIUrl":"https://doi.org/10.1109/IMCCC.2014.20","url":null,"abstract":"Electromagnetic vibration is produced by radial magnetic force waves acting on stator core of claw pole alternator. This paper analyzes the magnetic vibration and noise of mobile claw pole alternator. A new effective method to reduce radial magnetic force for claw pole alternator was proposed based on eccentric magnetic poles. The expressions of eccentric pole magneto motive force Fourier transform were established. The relationship between the radial magnetic force amplitude and the eccentric distance was acquired. It is shown that according to the suitable eccentric magnetic poles, the radial magnetic force and noise can be reduced. The finite element method results and experiment test verified the availability of the proposed method.","PeriodicalId":152074,"journal":{"name":"2014 Fourth International Conference on Instrumentation and Measurement, Computer, Communication and Control","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122544335","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}
Face recognition involves artificial intelligence, pattern recognition, image processing, psychology and other fields. It is a critical research topic in human interaction. The facial expression recognition based on dynamic image sequence is becoming more attractive with the improvement of the computer speed. It is different between the facial expression recognition based on the dynamic image sequence and the facial expression recognition based on static image. More dynamic and static feature information is involved in the dynamic features. Expression feature extraction describes by static information and the changed trend of expression due to the collection of multiple images. This paper provides the dynamic feature extraction algorithm based on Candide-3 face model parameters to extract the dynamic feature with matching facial model.
{"title":"Dynamic Facial Expression Feature Extraction and Classification Based on Candide-3 Face Model","authors":"Dong Li, Xinzhu Wang, Yantao Tian","doi":"10.1109/IMCCC.2014.184","DOIUrl":"https://doi.org/10.1109/IMCCC.2014.184","url":null,"abstract":"Face recognition involves artificial intelligence, pattern recognition, image processing, psychology and other fields. It is a critical research topic in human interaction. The facial expression recognition based on dynamic image sequence is becoming more attractive with the improvement of the computer speed. It is different between the facial expression recognition based on the dynamic image sequence and the facial expression recognition based on static image. More dynamic and static feature information is involved in the dynamic features. Expression feature extraction describes by static information and the changed trend of expression due to the collection of multiple images. This paper provides the dynamic feature extraction algorithm based on Candide-3 face model parameters to extract the dynamic feature with matching facial model.","PeriodicalId":152074,"journal":{"name":"2014 Fourth International Conference on Instrumentation and Measurement, Computer, Communication and Control","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129812406","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}
The task partition algorithm is the key issues in distributed crowd simulation. To overcome low execution performance of existing task partition methods, we proposed a partition algorithm based on grid and graph partition. Firstly, the virtual environment is partitioned by uniform grid, gpu threads are introduced to accelerating the calculation. Later, all pairs of neighbor cells of the grid are connected with an edge. Then a connected graph is constructed, the cells are set as vertexes and the edges connect the cells. Finally, the connected graph is split by k-way partition method for task assignment. The experiments prove that the coarser-grained method can provide higher performance than existing algorithms for different population distribution while keeping low cost. Also the max imbalance rate can be kept very low.
{"title":"A Task Partition Algorithm Based on Grid and Graph Partition for Distributed Crowd Simulation","authors":"Wenping Zhou, Haoxuan Tang, Zhenzhou Ji","doi":"10.1109/IMCCC.2014.113","DOIUrl":"https://doi.org/10.1109/IMCCC.2014.113","url":null,"abstract":"The task partition algorithm is the key issues in distributed crowd simulation. To overcome low execution performance of existing task partition methods, we proposed a partition algorithm based on grid and graph partition. Firstly, the virtual environment is partitioned by uniform grid, gpu threads are introduced to accelerating the calculation. Later, all pairs of neighbor cells of the grid are connected with an edge. Then a connected graph is constructed, the cells are set as vertexes and the edges connect the cells. Finally, the connected graph is split by k-way partition method for task assignment. The experiments prove that the coarser-grained method can provide higher performance than existing algorithms for different population distribution while keeping low cost. Also the max imbalance rate can be kept very low.","PeriodicalId":152074,"journal":{"name":"2014 Fourth International Conference on Instrumentation and Measurement, Computer, Communication and Control","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130191575","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}
Ma Yuechao, Li Sining, Shan Guohang, Lu Wei, Mou Zhixiu, Wang Dongzhe, L. Longming, Han Shaohuan
In view of the widely used 1.55 μm coherent lidar for wind measurement, the theoretical analysis and numerical simulation is prepared. The theoretical analysis is made of four parts: the principle of wind measurement lidar, laser transmitter, the atmospheric transmission and signal processing. At the same time, the modeling of those parts and a numerical simulation are performed by MATLAB and Simulink. Results of a simple demonstration experiment coincide with those from the models, the coherent heterodyne signal can be clearly detected. Through the reverse calculation of peak of the simulation spectrum, the result accords with the given wind speed.
{"title":"Numerical Simulation of 1.55 um Coherent Lidar for Wind Measurement","authors":"Ma Yuechao, Li Sining, Shan Guohang, Lu Wei, Mou Zhixiu, Wang Dongzhe, L. Longming, Han Shaohuan","doi":"10.1109/IMCCC.2014.208","DOIUrl":"https://doi.org/10.1109/IMCCC.2014.208","url":null,"abstract":"In view of the widely used 1.55 μm coherent lidar for wind measurement, the theoretical analysis and numerical simulation is prepared. The theoretical analysis is made of four parts: the principle of wind measurement lidar, laser transmitter, the atmospheric transmission and signal processing. At the same time, the modeling of those parts and a numerical simulation are performed by MATLAB and Simulink. Results of a simple demonstration experiment coincide with those from the models, the coherent heterodyne signal can be clearly detected. Through the reverse calculation of peak of the simulation spectrum, the result accords with the given wind speed.","PeriodicalId":152074,"journal":{"name":"2014 Fourth International Conference on Instrumentation and Measurement, Computer, Communication and Control","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122394632","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}
Based on PXI Express bus protocol and PXI Express hardware specification, PXI Express embedded controller is designed in this paper. MPC8536 is taken as a processor in the overall hardware program. FPGA and PXI Express Switch are taken to design PXI Express interface. Cut and customed VxWorks OS is taken in the software program. U-boot ensure normal operation of the embedded controller. BSP boot the VxWorks OS to complete the normal start up, then check the function of each part. Finally, a test platform of AD data acquisition module is built to verify the design.
{"title":"Design of PXI Express Embedded Controller","authors":"Ping Fu, Hongjie Li, Qi Zhang, Qiben Tian","doi":"10.1109/IMCCC.2014.65","DOIUrl":"https://doi.org/10.1109/IMCCC.2014.65","url":null,"abstract":"Based on PXI Express bus protocol and PXI Express hardware specification, PXI Express embedded controller is designed in this paper. MPC8536 is taken as a processor in the overall hardware program. FPGA and PXI Express Switch are taken to design PXI Express interface. Cut and customed VxWorks OS is taken in the software program. U-boot ensure normal operation of the embedded controller. BSP boot the VxWorks OS to complete the normal start up, then check the function of each part. Finally, a test platform of AD data acquisition module is built to verify the design.","PeriodicalId":152074,"journal":{"name":"2014 Fourth International Conference on Instrumentation and Measurement, Computer, Communication and Control","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120984689","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}
In the field of milk quality testing, the technology of the ratio of scattered intensity to transmitted intensity has become a hot topic. In general, the particle size of fat globules after homogenizing is supposed to be the same. In fact, there is still the particle size distribution. The image processing technique is used for processing and analyzing the image of milk fat, in this paper. The results show that the particle size distribution exists in the homogenized milk fat solution. The results of calculating the radiation characteristics show that, the scattering properties and the attenuation properties have a significant change, and the absorption properties changes slightly, when fat particle size changes. And when the milk fat volume is 3.3%, the influence of absorption properties of light scattering properties can be ignored. When the wavelength is 1333nm, the scattering factor of the fat globules (D>3.0μm) will produce the largest deviation with 1.94. This paper will have important significance for calculating the scattering properties of milk fat.
{"title":"Influence of Fat Particle Size on Light Scattering Properties in Milk Quality Testing","authors":"Jinying Yin, Siqi Zhang, Hongyan Yang, Lijie Wang, Zhen Zhou","doi":"10.1109/IMCCC.2014.157","DOIUrl":"https://doi.org/10.1109/IMCCC.2014.157","url":null,"abstract":"In the field of milk quality testing, the technology of the ratio of scattered intensity to transmitted intensity has become a hot topic. In general, the particle size of fat globules after homogenizing is supposed to be the same. In fact, there is still the particle size distribution. The image processing technique is used for processing and analyzing the image of milk fat, in this paper. The results show that the particle size distribution exists in the homogenized milk fat solution. The results of calculating the radiation characteristics show that, the scattering properties and the attenuation properties have a significant change, and the absorption properties changes slightly, when fat particle size changes. And when the milk fat volume is 3.3%, the influence of absorption properties of light scattering properties can be ignored. When the wavelength is 1333nm, the scattering factor of the fat globules (D>3.0μm) will produce the largest deviation with 1.94. This paper will have important significance for calculating the scattering properties of milk fat.","PeriodicalId":152074,"journal":{"name":"2014 Fourth International Conference on Instrumentation and Measurement, Computer, Communication and Control","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122366214","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}
Location fingerprinting in WLAN has become the mainstream of indoor positioning research in recent years. The Radio-map constructed during offline phase is an important basis for positioning, but it costs huge human and computational resources. In order to improve efficiency and reduce the labor cost of establishing the Radio-map during offline phase, this paper proposes a method based on support vector regression (SVR) algorithm to build a Radio-map. In this method, a nonlinear mapping between RSS and physical locations is constructed by SVR. Experimental results show that, this method can reduce the workload of Radio-map construction and ensure positioning accuracy at the same time.
{"title":"Research on the Construction of Radio-Map Based on Support Vector Regression","authors":"Zhu Dali, Zhang Huihui, Feng Weimiao","doi":"10.1109/IMCCC.2014.24","DOIUrl":"https://doi.org/10.1109/IMCCC.2014.24","url":null,"abstract":"Location fingerprinting in WLAN has become the mainstream of indoor positioning research in recent years. The Radio-map constructed during offline phase is an important basis for positioning, but it costs huge human and computational resources. In order to improve efficiency and reduce the labor cost of establishing the Radio-map during offline phase, this paper proposes a method based on support vector regression (SVR) algorithm to build a Radio-map. In this method, a nonlinear mapping between RSS and physical locations is constructed by SVR. Experimental results show that, this method can reduce the workload of Radio-map construction and ensure positioning accuracy at the same time.","PeriodicalId":152074,"journal":{"name":"2014 Fourth International Conference on Instrumentation and Measurement, Computer, Communication and Control","volume":"08 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127143448","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}
The optimization of the observation geometry is very important for multi-sensor target tracking. This paper performs analysis of the Fisher information matrix obtained using the passive measurements, and analyzes the influences to the tracking performance by the observation geometry factors like the distance and the angle, therefore obtains the optimal criteria for the sensor selection in target tracking.
{"title":"The Optimization of the Observation Geometry Using the Passive Measurements","authors":"Qian Zhang, Li Lin, Yan Zhao","doi":"10.1109/IMCCC.2014.85","DOIUrl":"https://doi.org/10.1109/IMCCC.2014.85","url":null,"abstract":"The optimization of the observation geometry is very important for multi-sensor target tracking. This paper performs analysis of the Fisher information matrix obtained using the passive measurements, and analyzes the influences to the tracking performance by the observation geometry factors like the distance and the angle, therefore obtains the optimal criteria for the sensor selection in target tracking.","PeriodicalId":152074,"journal":{"name":"2014 Fourth International Conference on Instrumentation and Measurement, Computer, Communication and Control","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127220316","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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