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2012 IEEE 11th International Conference on Signal Processing最新文献

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Closed-loop spatial modulation with antenna selection 带天线选择的闭环空间调制
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491812
Junling Wang, A. Pérez-Neira, Qian Zhang, M. Gao, Xiao-bin Bian
{"title":"Closed-loop spatial modulation with antenna selection","authors":"Junling Wang, A. Pérez-Neira, Qian Zhang, M. Gao, Xiao-bin Bian","doi":"10.1109/ICOSP.2012.6491812","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491812","url":null,"abstract":"The closed-loop scheme of spatial modulation (SM), which feeds back the selected transmit antenna subsets to the transmitter, is presented to overcome the constraint in SM that the number of transmit antennas has to be a power of two. This scheme outperforms the classic SM due to the limited feedback information. Motivated by reducing the receiver's complexity of this scheme, some mathematical characteristics of the joint transmit/receive antenna selection algorithm implemented in this paper are exploited.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114621002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
Weighted-cooperative spectrum sensing scheme using trust in cognitive radio networks 认知无线电网络中基于信任的加权协同频谱感知方案
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491906
Jingyu Feng, G. Lu, Zhiqiang Bao
{"title":"Weighted-cooperative spectrum sensing scheme using trust in cognitive radio networks","authors":"Jingyu Feng, G. Lu, Zhiqiang Bao","doi":"10.1109/ICOSP.2012.6491906","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491906","url":null,"abstract":"Cooperative spectrum sensing is an advanced technology to improve the utilization of scarce radio spectrum resources. However, there may exist some malicious secondary users (SUs) who are unwilling to cooperate, i.e. provide false sensing reports. Such malicious behavior, if unchecked, the sensing performance of cooperative spectrum sensing will be severely degraded. In this paper, we propose a trust weighted cooperative spectrum sensing scheme to identify malicious SUs and mitigate their harmful effect on sensing performance. This scheme provides a reliable approach to evaluate trust values for SUs. Depending on the trust values, this scheme can detect malicious SUs and filter out their false spectrum sensing results in the process of sensing data fusion. Finally, simulation results validate the effectiveness of the proposed scheme.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"15 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113958015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Unsupervised and semi-supervised adaptation of a hybrid speech recognition system 混合语音识别系统的无监督和半监督自适应
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491542
J. Trmal, J. Zelinka, Ludek Muller
{"title":"Unsupervised and semi-supervised adaptation of a hybrid speech recognition system","authors":"J. Trmal, J. Zelinka, Ludek Muller","doi":"10.1109/ICOSP.2012.6491542","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491542","url":null,"abstract":"This paper evaluates a recently published method for supervised and unsupervised adaptation of neural networks used in hybrid speech recognition systems. The neural networks used in the field of hybrid speech recognition have certain distinct characteristics that make the usual adaptation methods (such as retraining the neural network) unusable or ineffective.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"527 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114003936","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
Absolute calibration of V-band crosslink transmitting channel for inter-satellite communication 星间通信v波段交联发射信道的绝对校准
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6492011
Xiao-zhun Cui, Yi Li, Xin Nie, S. Bi, Chonghua Liu
{"title":"Absolute calibration of V-band crosslink transmitting channel for inter-satellite communication","authors":"Xiao-zhun Cui, Yi Li, Xin Nie, S. Bi, Chonghua Liu","doi":"10.1109/ICOSP.2012.6492011","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6492011","url":null,"abstract":"An absolute calibration of V-band crosslink transmitting channel for inter-satellite communication is addressed. The satellite crosslink signal is band-sampled along with the pulse per second (1PPS) generated by satellite time keeping system. The sampling data of the crosslink signal is down-converted to intermediate frequency carried signal and then the high rate data stream is converted into several low rate data streams with a serial-to-parallel transformer. Acquisition is done for each low rate data streams. With sampling data of PPS, the absolute delay of crosslink signal transmitting channel can be calculated. The simulated result indicates the precision of the calibrated algorithm is main dominated by the sampling frequency.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114712428","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
A method of location the vehicle windshield region for vehicle occupant detection system 一种用于车辆乘员检测系统的车辆挡风玻璃区域定位方法
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491586
Xue Yuan, Yifei Meng, Xueye Wei
{"title":"A method of location the vehicle windshield region for vehicle occupant detection system","authors":"Xue Yuan, Yifei Meng, Xueye Wei","doi":"10.1109/ICOSP.2012.6491586","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491586","url":null,"abstract":"This paper investigates a maximum energy method to extract the windshield regions from the vehicles, proposed method combines the information of color (gray-scale), shape and complexity for location the vehicle windshield region, which can be applied vehicle occupant detection and recognition system successfully. Firstly, the mean-shift segmentation method is adopted to divide the vehicle image into several segments, and Hough transform method is adopted to extract the shape lines from edges of vehicle, these shape lines compose several trapezoids as candidate regions. Then, the maximum energy method is proposed to select final windshield region from the candidate regions. Finally, Histograms of Oriented Gradients (HOG) descriptors based method is adopted to detect the occupants in the extracted windshield regions.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127708995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Feature extraction and target recognition of missile targets based on micro-motion 基于微运动的导弹目标特征提取与目标识别
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491954
Peng Lei, Kang Li, Y. Liu
{"title":"Feature extraction and target recognition of missile targets based on micro-motion","authors":"Peng Lei, Kang Li, Y. Liu","doi":"10.1109/ICOSP.2012.6491954","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491954","url":null,"abstract":"The ballistic targets flying in the exo-atmosphere have different micro-motions, the micro-motion of warhead belongs to precession and that of decoy belongs to wobbling or tumbling. This paper investigates the micro-motion difference of warhead and decoy. First, we build the micro-motion model of precession, wobbling and tumbling, derive the micro-Doppler expression and analyze the characteristic of it. Second, with the broadband echo of the microwave anechoic chamber, we analyze the distribution characteristic of the high-resolution range profile (HRRP) serial under different micro-motions, judge whether or not the target is tumbling by finding whether there are intersections in the HRRP serial, and derive a method to estimate the top angle of the tumbling cone. Third, we simulate the time-frequency distribution(TFD) of one range cell of the broadband echo, and analyze the TFD difference of precession, wobbling and tumbling. At last, we put forth a method to recognize the target based on the HRRP serial and the TFD, and the experiment results proved our method to be effective.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125674278","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
The research of radar speed measurement system based on TMS320C6745 基于TMS320C6745的雷达测速系统的研究
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491939
Jie Zhang, Hong-wei Li, Long-hao Zhang, Q. Hu
{"title":"The research of radar speed measurement system based on TMS320C6745","authors":"Jie Zhang, Hong-wei Li, Long-hao Zhang, Q. Hu","doi":"10.1109/ICOSP.2012.6491939","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491939","url":null,"abstract":"A radar speed measurement system for railway traffic based on digital signal processor TMS320C6745 is introduced. The system is designed to be used on high-speed trains. The working principle and the structure of the system are described. This system is based on a compensation structure of dual-radar module to eliminate the effects resulting from shaking of the trains. It also has a variety of working modes to adapt to different working conditions. After the Doppler frequency signals from the radar microwave modules are amplified and filtered, the DSP selects the appropriate working mode and gives instructions to collect and process the signals, and eventually sends the results to the display unit. The experimental results show that the system has high accuracy and good stability.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130475622","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
A detest algorithm based on BOC signal modulation technology 一种基于BOC信号调制技术的检测算法
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491823
Chang-xing Chen, Donglai Bian, Sha-sha Peng, Dezhi Niu
{"title":"A detest algorithm based on BOC signal modulation technology","authors":"Chang-xing Chen, Donglai Bian, Sha-sha Peng, Dezhi Niu","doi":"10.1109/ICOSP.2012.6491823","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491823","url":null,"abstract":"With the rapid development of satellite navigation systems, BOC (Binary Offset Carrier) is one of the most critical and most common modulation mode and will become the mainstream in the Satellite navigation signal modulation. Through the mechanism of the BOC signal, it mentioned a method named Square Frequency Doubling Method to detect carrier frequency of BOC modulation signal. The subcarrier frequency and the pseudo-random code rate of BOC baseband signal is detested by the correlation of BOC. With the BOC (1, 1) signal, the MATLAB simulation tests the validity of the algorithm which can effectively achieve the detection results of BOC signal carrier frequency, subcarrier frequency and spread spectrum code rate.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134115733","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
Detect adverse drug reactions for drug Pioglitazone 检测吡格列酮药物的不良反应
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICoSP.2012.6491898
Yihui Liu, U. Aickelin
{"title":"Detect adverse drug reactions for drug Pioglitazone","authors":"Yihui Liu, U. Aickelin","doi":"10.1109/ICoSP.2012.6491898","DOIUrl":"https://doi.org/10.1109/ICoSP.2012.6491898","url":null,"abstract":"Adverse drug reaction (ADR) is widely concerned for public health issue. In this study we propose an original approach to detect the ADRs using feature matrix and feature selection. The experiments are carried out on the drug Pioglitazone. Major side effects for the drug are detected and better performance is achieved compared to other computerized methods. The detected ADRs are based on the computerized method, further investigation is needed.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134414820","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
Free viewpoint action recognition based on self-similarities 基于自相似度的自由视点动作识别
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491777
Jiao Wang, Changhong Chen, Xiuchang Zhu
{"title":"Free viewpoint action recognition based on self-similarities","authors":"Jiao Wang, Changhong Chen, Xiuchang Zhu","doi":"10.1109/ICOSP.2012.6491777","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491777","url":null,"abstract":"Action recognition is an important topic in computer vision and most current work focuses on view-dependent representations. In this paper, we develop a novel free viewpoint action recognition based on Self-similarity matrix (SSM), which tends to be stable across views. We choose Local Self-similarity (LSS) descriptor as our low-level feature, then SSM is calculated by computing the similarity between any pair of frame features. Each video sequence is represented using a diagonal descriptor vector extracted from the SSM. Support Vector Machines (SVM) is employed for classification. The encouraging experimental results on the public IXMAS multi-view data set demonstrate effectiveness of the proposed method.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131531380","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
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