发布求助
文献互助 智能选刊 最新文献

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

筛选
英文 中文
Effect of step-by-step estimation technique on uniqueness of solution in nonnegative matrix factorization minimizing quasi-L1 norm 逐步估计技术对最小化拟l1范数非负矩阵分解解唯一性的影响
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491624
M. Mouri, A. Funase, A. Cichocki, I. Takumi, H. Yasukawa
{"title":"Effect of step-by-step estimation technique on uniqueness of solution in nonnegative matrix factorization minimizing quasi-L1 norm","authors":"M. Mouri, A. Funase, A. Cichocki, I. Takumi, H. Yasukawa","doi":"10.1109/ICOSP.2012.6491624","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491624","url":null,"abstract":"Nonnegative matrix factorization (NMF) is a linear nonnegative approximate data representation technique. NMF is often used to solve blind signal separation (BSS) problem. We had used a basic NMF algorithm named ISRA and our original algorithm named QL1-NMF to analyze the environmental electromagnetic data in extremely low frequency (ELF) band. In previous research, we found that QL1-NMF works more robust than ISRA when our data includes many outliers. However, both algorithms have a problem that their solutions are not unique. In this paper, we try to estimate signals step-by-step. We research the effect which this technique has on the uniqueness of solutions.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"37 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":"114748129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A method for blind identification of rate 1/2 convolutional code based on improved Euclidean algorithm 基于改进欧几里得算法的1/2卷积码盲识别方法
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491816
Hui Xie, Xian-ming Chai, Fenghua Wang, Zhitao Huang
{"title":"A method for blind identification of rate 1/2 convolutional code based on improved Euclidean algorithm","authors":"Hui Xie, Xian-ming Chai, Fenghua Wang, Zhitao Huang","doi":"10.1109/ICOSP.2012.6491816","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491816","url":null,"abstract":"In order to adapt the characteristic that the intercepted code sequence is not complete, the polynomial model in [6] has been amended. Based on the model, a scheme is proposed to improve the capability of classical Euclidean algorithm, and a new method for blind identification of rate 1/2 convolutional code is proposed. The validity of algorithm is verified by the simulation results, and it has less computational load compared to the references.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"9 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":"114806120","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: 9
Distributed compressive data gathering in wireless sensor networks 无线传感器网络中的分布式压缩数据采集
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491998
Charul Agrawal, D. Ghosh
{"title":"Distributed compressive data gathering in wireless sensor networks","authors":"Charul Agrawal, D. Ghosh","doi":"10.1109/ICOSP.2012.6491998","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491998","url":null,"abstract":"Efficient data aggregation in sensor networks is becoming important with the increase of the number of nodes in the networks. In this paper, we propose a distributed compressed sensing-based data gathering scheme in wireless sensor networks in which the sensor readings possess both inter- (spatial) and intra- (temporal) signal correlations that may take the form of a jointly sparse structure. Simulations are performed using real data sets to evaluate the recovery performance in our proposed framework. Results show that the use of this scheme permits almost perfect signal reconstruction with significantly reduced number of measurements which in turn reduces the communication cost, saves energy consumption by the sensor nodes and prolongs the lifetime of the network.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"57 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":"114862690","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: 8
SDP formulation for design of general 2-D ellipse-shaped filters 一般二维椭圆滤波器设计的SDP公式
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491606
Hung Quang Ta, L. Thăng
{"title":"SDP formulation for design of general 2-D ellipse-shaped filters","authors":"Hung Quang Ta, L. Thăng","doi":"10.1109/ICOSP.2012.6491606","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491606","url":null,"abstract":"In this paper, we propose a new technique for the design of linear phase 2-D ellipse-shaped FIR filter subject to frequency mask constraints, which can handle filters of sufficiently large sizes for practical applications. The designed 2-D filters admit a fast digital implementation. Filter's specifications are expressed as semi-definite constraints using the notion of 2-D trigonometric curves. Moreover, we exploited convex duality to derive equivalent semi-definite programme formulation of reduced constraints. The designed example shows the viability of proposed method.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"47 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":"114937997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Coexistence studies between LTE-Hotspot Indoor and earth station of fixed satellite service in the band 3400–3600MHz 3400-3600MHz频段lte -热点室内与卫星固定业务地面站共存研究
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6492034
Qiang Sun, Shujun Nan
{"title":"Coexistence studies between LTE-Hotspot Indoor and earth station of fixed satellite service in the band 3400–3600MHz","authors":"Qiang Sun, Shujun Nan","doi":"10.1109/ICOSP.2012.6492034","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6492034","url":null,"abstract":"3400–3600MHz band is possibly allocated to LTE-Hotspot Indoor (LTE-Hi) in the future. LTE-Hi will share the same frequency band with Fixed Satellite Service (FSS) in 3400–3600MHz. Therefore, the coexistence interference for the LTE-Hi with the FSS earth station should be studied. The deterministic analysis and Monte Carlo simulation are utilized in the coexistence studies to getting the relationship curve of protection distance and isolation. In this paper, we designed two topology models which are used in deterministic analysis and Monte Carlo simulation respectively. The simulation parameters of LTE-Hi are given referring to the parameters of other existing indoor wireless communication systems, such as LTE Pico, Femto or WLAN. The simulation results show that it is necessary to add a reasonable protection distance or additional isolation in the co-channel, and the coexistence of the two systems in adjacent channels is feasible. Maybe the simulation results are useful to application of LTE-Hi in the future.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"47 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":"115113858","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: 8
Robust transmit beamforming for multi-user MIMO systems using a probabilistic constraint approach 基于概率约束方法的多用户MIMO系统鲁棒发射波束形成
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491855
Pei-Jung Chung, H. Du, Ming Chen
{"title":"Robust transmit beamforming for multi-user MIMO systems using a probabilistic constraint approach","authors":"Pei-Jung Chung, H. Du, Ming Chen","doi":"10.1109/ICOSP.2012.6491855","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491855","url":null,"abstract":"This paper considers the multi-user multiple-input and multiple-output (MU-MIMO) downlink system where each user is equipped with multiple receive antennas. As the design of transmit beamformers relies heavily on perfect channel state information, channel uncertainties may cause substantial performance degradation. Here we suggest a solution based on a probabilistic constraint approach. The suggested method maximizes the average signal power and keeps leakage power below an acceptable level, leading to an upper bound on signal to leakage noise ratio (SLNR). To solve the underlying problem efficiently, the probabilistic constraint is transformed to a deterministic, convex one through the application of the Markov inequality. Simulation results show that the probabilistic constraint approach provides excellent performance in terms of signal-to-interference and noise ratio (SINR) and bit error rate (BER) for large channel errors and various error distributions.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"49 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":"117272061","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: 3
Research on laws of flight path error distribution based on ADS-B 基于ADS-B的航迹误差分布规律研究
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491967
Zhanmeng Zhang, Hong-yong Wang, Chen Wang
{"title":"Research on laws of flight path error distribution based on ADS-B","authors":"Zhanmeng Zhang, Hong-yong Wang, Chen Wang","doi":"10.1109/ICOSP.2012.6491967","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491967","url":null,"abstract":"To increase the airspace utilization, the standard of air route width was constituted by researching the laws of flight path error distribution. On the basis of analyzing ADS-B(Automatic Dependent Surveillance-Broadcast) data along A593 air route, the paper build statistical samples. The methods of Quantile-Quantile plot were proposed to put normal distribution test on the data. Then, a statistics based on parameters estimation was used to calculate flight path error. Get the distribution under 3 Standard deviation capacities and compare the distribution in different time periods. The result shows that the deviated distance between aircraft position and airway centerline obeys the normal distribution, which less than air route width standard. It is helpful for the further research on flight safety separation based on ADS-B.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"2636 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":"117274160","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
Review of F0 modelling and generation in HMM based speech synthesis 基于HMM的语音合成中F0建模与生成研究进展
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491559
Kai Yu
{"title":"Review of F0 modelling and generation in HMM based speech synthesis","authors":"Kai Yu","doi":"10.1109/ICOSP.2012.6491559","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491559","url":null,"abstract":"Fundamental frequency, or F0, is a critical factor in synthesising speech which is both natural and expressive. In HMM based speech synthesis, the modelling and generation of F0 is one of the key difficult factors which differentiate synthesis from recognition. Firstly, this is because F0 values are normally considered as a discontinuous function of time, whose domain is partly continuous and partly discrete. This results in two issues to be addressed in F0 modelling and generation: voiced/unvoiced decision and F0 trajectory. Another important characteristics of F0 is that it is supra-segmental, which means F0 should be modelled beyond the traditional phoneme level. Thirdly, the purpose of F0 modelling is not only for general high quality synthetic speech, but also for effective delivery of expressiveness. This requires explicitly link F0 modelling to (para/non-) linguistic information so that the control of F0 is easy and feasible. This paper reviews the state-of-the-art frameworks to address these issues. Possible future research directions are also discussed.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"17 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":"122140248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Visual tracking with double-layer particle filter 采用双层粒子滤波的视觉跟踪
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491776
Yujuan Qi, Yanjiang Wang
{"title":"Visual tracking with double-layer particle filter","authors":"Yujuan Qi, Yanjiang Wang","doi":"10.1109/ICOSP.2012.6491776","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491776","url":null,"abstract":"Particle Filter is one of the most widely used algorithm in object tracking, because it can handle the nonlinear and/or non-Gaussian problems. However due to loss of diversity among particles, its tracking performance is not ideal. In order to solve this problem, in this paper, a novel double-layer particle filter is proposed. The particles are divided into two layers: the parent particles and the child particles. The child particles are used to remember the latest state of the parent particles and optimize the parent particles. In addition, only the parent particles are updated during re-sampling while the child particles remain unchanged, which maintains the diversity of the particles to some extent. Finally, the parent particles are used to estimate the state of the object. Experimental results show that the tracking performance of the proposed double-layer particle filter outperforms that of the basic particle filter.","PeriodicalId":143331,"journal":{"name":"2012 IEEE 11th International Conference on Signal Processing","volume":"120-121 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":"124012172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Speaker identification investigation and analysis in Two distinct emotional talking environments 两种不同情绪谈话环境下说话人识别的调查与分析
2012 IEEE 11th International Conference on Signal Processing Pub Date : 2012-10-01 DOI: 10.1109/ICOSP.2012.6491533
I. Shahin
{"title":"Speaker identification investigation and analysis in Two distinct emotional talking environments","authors":"I. Shahin","doi":"10.1109/ICOSP.2012.6491533","DOIUrl":"https://doi.org/10.1109/ICOSP.2012.6491533","url":null,"abstract":"The focus of this work is to investigate and analyze speaker identification in two different emotional talking environments based on a well-known classifier called Hidden Markov Models (HMMs). The first talking environment is unbiased towards any emotional state, while the second one is biased towards different emotional states. Each talking environment is comprised of six distinct emotions. The six emotions are neutral, angry, sad, happy, disgust, and fear. Our investigation and analysis in this work show that speaker identification performance in the second talking environment is superior to that in the first one. The results achieved in the current work are close to those obtained in subjective assessment by human judges.","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":"124880142","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信