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2009 17th European Signal Processing Conference最新文献

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A weighted approach for integrated active noise control and noise reduction in hearing aids 助听器主动噪声控制与降噪的加权综合方法
2009 17th European Signal Processing Conference Pub Date : 2009-08-24 DOI: 10.5281/ZENODO.41496
R. Serizel, M. Moonen, J. Wouters, S. H. Jensen
{"title":"A weighted approach for integrated active noise control and noise reduction in hearing aids","authors":"R. Serizel, M. Moonen, J. Wouters, S. H. Jensen","doi":"10.5281/ZENODO.41496","DOIUrl":"https://doi.org/10.5281/ZENODO.41496","url":null,"abstract":"This paper presents a weighted approach for integrated active noise control and noise reduction in hearing aids. An integrated scheme has been introduced previously to tackle secondary path effects and effects of noise leakage through an open fitting. This scheme, however, does not allow to balance between the noise reduction and the active noise control. In some circumstances it will indeed be useful to emphasize one of the functional blocks. A scheme based on a weighted mean squared error criterion is presented here and compared experimentally with the original un-weighted scheme.","PeriodicalId":106989,"journal":{"name":"2009 17th European Signal Processing Conference","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115905777","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
Aliasing effects in sampling spectrally correlated processes 采样光谱相关过程中的混叠效应
2009 17th European Signal Processing Conference Pub Date : 2009-08-24 DOI: 10.5281/ZENODO.41322
A. Napolitano
{"title":"Aliasing effects in sampling spectrally correlated processes","authors":"A. Napolitano","doi":"10.5281/ZENODO.41322","DOIUrl":"https://doi.org/10.5281/ZENODO.41322","url":null,"abstract":"The problem of sampling continuous-time spectrally correlated (SC) processes is addressed. SC processes have Loève bifrequency spectrum with spectral masses concentrated on a countable set of support curves. This class of nonstationary processes extends that of the almost-cyclostationary processes and occurs in wide-band mobile communications. The class of the discrete-time SC processes is introduced and characterized. It is shown that such processes can be obtained by uniformly sampling the continuous-time SC processes. Sampling theorems are presented and a sufficient condition to avoid aliasing in the whole bifrequency domain is provided.","PeriodicalId":106989,"journal":{"name":"2009 17th European Signal Processing Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132053590","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
Direct state determination of multiple sources with intermittent emission 多源间歇性发射的直接状态确定
2009 17th European Signal Processing Conference Pub Date : 2009-08-24 DOI: 10.5281/ZENODO.41351
M. Oispuu
{"title":"Direct state determination of multiple sources with intermittent emission","authors":"M. Oispuu","doi":"10.5281/ZENODO.41351","DOIUrl":"https://doi.org/10.5281/ZENODO.41351","url":null,"abstract":"This paper investigates the direct state determination problem from passive measurements made with a moving antenna array in the case of a time-varying number of emitting sources. We derive the Cramér-Rao Bound (CRB) for the estimation problem and find an approximation that is applicable for a large number of observations. We use two Subspace Data Fusion (SDF) approaches to solve the estimation problem. Therein, subspaces are formed in the pre-processing step from the raw antenna outputs at all positions of the moving array. Then the state parameters of interest (e.g. position, velocity) are estimated directly from a cost function that results from fusing all subspaces. The SDF approaches are based on the Multiple Signal Classification (MUSIC) and on the Subspace Fitting (SSF) method using a low- and high-dimensional optimization, respectively. In simulations, we find that the SSF-SDF approach outperforms the MUSIC-SDF approach.","PeriodicalId":106989,"journal":{"name":"2009 17th European Signal Processing Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130139320","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: 15
SNR optimized residual frequency offset compensation for WiMAX with throughput evaluation 基于吞吐量评估的WiMAX剩余频偏补偿信噪比优化
2009 17th European Signal Processing Conference Pub Date : 2009-08-24 DOI: 10.5281/ZENODO.41589
Qi Wang, C. Mehlführer, M. Rupp
{"title":"SNR optimized residual frequency offset compensation for WiMAX with throughput evaluation","authors":"Qi Wang, C. Mehlführer, M. Rupp","doi":"10.5281/ZENODO.41589","DOIUrl":"https://doi.org/10.5281/ZENODO.41589","url":null,"abstract":"WiMAX with an OFDM physical layer employed is sensitive to carrier frequency offset. Even though most of this offset can be compensated with the initial training sequence, there still remains a residual frequency offset due to estimation errors. In this paper, we investigate pilot-based and data-aided residual frequency offset estimators and apply them to WiMAX. To improve the pilot-based method, we propose two compensation schemes which exploit the a-priori knowledge from the previous frame. For the data-aided method with general QAM schemes, the optimal weighting factors that maximize the SNR after combining are analytically derived. Throughput results show that most of the degradation due to the residual frequency offset can be compensated by our proposed low-complexity suboptimal methods.","PeriodicalId":106989,"journal":{"name":"2009 17th European Signal Processing Conference","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134411043","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
Energy efficient power back-off management for VDSL2 transmission VDSL2传输的节能电源回退管理
2009 17th European Signal Processing Conference Pub Date : 2009-08-24 DOI: 10.5281/ZENODO.41725
T. Nordström, D. Statovci, M. Wolkerstorfer
{"title":"Energy efficient power back-off management for VDSL2 transmission","authors":"T. Nordström, D. Statovci, M. Wolkerstorfer","doi":"10.5281/ZENODO.41725","DOIUrl":"https://doi.org/10.5281/ZENODO.41725","url":null,"abstract":"Recently energy saving has become an important issue also for wired communication. In this paper we investigate the potential of using power back-off (PBO) as a means to achieve higher energy efficiency. Based on a global energy optimisation formulation we derive an energy efficient PBO (EEPBO) algorithm. Through simulation we compare EEPBO with continuous bit-loading to the near-optimal energy efficient spectrum balancing (EESB) algorithm and an integer bit-loading version of EEPBO with energy efficient iterative spectrum balancing (EEISB). By restricting the search to practical levels of PBO parameters instead of optimizing the bit-loading on each and every carrier separately we see a significant reduction in computational complexity. It also means that EEPBO is already supported by current VDSL2 systems. Still, even after restricting the spectrum to what the PBO in VDSL2 allows we can show, through simulations, that EEPBO achieves the same level of energy efficiency as the near-optimal methods. This high performance and low-complexity together with standard compliance makes EEPBO a very attractive choice for future energy efficient transmission in VDSL2.","PeriodicalId":106989,"journal":{"name":"2009 17th European Signal Processing Conference","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127395021","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
A low-complexity iterative mimo sphere decoding algorithm 一种低复杂度迭代mimo球解码算法
2009 17th European Signal Processing Conference Pub Date : 2009-08-24 DOI: 10.5281/ZENODO.41784
Mansour Rachid, B. Daneshrad
{"title":"A low-complexity iterative mimo sphere decoding algorithm","authors":"Mansour Rachid, B. Daneshrad","doi":"10.5281/ZENODO.41784","DOIUrl":"https://doi.org/10.5281/ZENODO.41784","url":null,"abstract":"In this work we present an iterative multiple-input multipleoutput (MIMO) sphere decoding algorithm based on a proposed Constrained Metric-first search. The search strategy minimizes the number of required iterations as well as the variation in the number of iterations while overcoming the conventional metric-first memory requirements. Further complexity reduction is achieved through the use of a simplified distance norm and sorted QR-decomposition. The proposed algorithm is shown to be better suited for early termination schemes employed to guarantee high throughput as compared to traditional sequential sphere decoding. The decoder is synthesized to a standard TSMC 65nm CMOS process and shown to guarantee 750 Mbps throughput for a 4×4 16-QAM setup with close-to ML (Maximum Likelihood) performance and lower complexity than published decoders.","PeriodicalId":106989,"journal":{"name":"2009 17th European Signal Processing Conference","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115371895","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
Analysis of a parallel lexical-tree-based speech decoder for multi-core processors 面向多核处理器的并行词法树语音解码器分析
2009 17th European Signal Processing Conference Pub Date : 2009-08-24 DOI: 10.5281/ZENODO.41412
N. Parihar, E. Hansen
{"title":"Analysis of a parallel lexical-tree-based speech decoder for multi-core processors","authors":"N. Parihar, E. Hansen","doi":"10.5281/ZENODO.41412","DOIUrl":"https://doi.org/10.5281/ZENODO.41412","url":null,"abstract":"We present a systematic analysis of a lexical-tree based parallel search algorithm for multi-core desktop processors. We introduce an analytical model that predicts the speedup from parallelization after accounting for load imbalance among the cores. Various sources of overhead in the parallel search algorithm are described, benchmarked and analyzed. Besides load imbalance, these include the inherently serial steps of the parallel search algorithm and an increase in main memory access latency.","PeriodicalId":106989,"journal":{"name":"2009 17th European Signal Processing Conference","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115765565","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
On the performance of mobile terminal tracking in urban GSM networks using particle filters 基于粒子滤波的城市GSM网络移动终端跟踪性能研究
2009 17th European Signal Processing Conference Pub Date : 2009-08-24 DOI: 10.5281/ZENODO.41608
C. Fritsche, A. Klein
{"title":"On the performance of mobile terminal tracking in urban GSM networks using particle filters","authors":"C. Fritsche, A. Klein","doi":"10.5281/ZENODO.41608","DOIUrl":"https://doi.org/10.5281/ZENODO.41608","url":null,"abstract":"A particle filter (PF) and a Rao-Blackwellized particle filter (RBPF) are proposed for mobile terminal tracking in the Global System for Mobile Communication (GSM) network based on received signal level and timing advance measurements. The proposed PF and RBPF are able to cope with errors due to non-line-of-sight propagation, which are modelled as non-Gaussian disturbances. The proposed algorithms have been tested on synthetic and “real world” GSM measurements, and their enhanced performance compared to an extended Kalman filter is shown.","PeriodicalId":106989,"journal":{"name":"2009 17th European Signal Processing Conference","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124163720","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 polar edge coherence: A quasi blind metric for video quality assessment 极边缘相干性:视频质量评估的准盲度量
2009 17th European Signal Processing Conference Pub Date : 2009-08-24 DOI: 10.5281/ZENODO.41682
V. Baroncini, L. Capodiferro, E. D. D. Claudio, G. Jacovitti
{"title":"The polar edge coherence: A quasi blind metric for video quality assessment","authors":"V. Baroncini, L. Capodiferro, E. D. D. Claudio, G. Jacovitti","doi":"10.5281/ZENODO.41682","DOIUrl":"https://doi.org/10.5281/ZENODO.41682","url":null,"abstract":"An extremely reduced reference video quality assessment method for video sequences is presented. It is based on the comparison of indices independently calculated for the examined video sequence and for the reference one. The employed metric is based on a cumulative measure of both frame by frame and interframe local edge coherence measures made with pairs of circular harmonic functions.","PeriodicalId":106989,"journal":{"name":"2009 17th European Signal Processing Conference","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117034205","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: 15
Multistatic matched-illumination waveform design for detection and identification of indoor targets behind walls 墙后室内目标检测与识别的多静态匹配照明波形设计
2009 17th European Signal Processing Conference Pub Date : 2009-08-24 DOI: 10.5281/ZENODO.41750
F. Ahmad, M. Amin
{"title":"Multistatic matched-illumination waveform design for detection and identification of indoor targets behind walls","authors":"F. Ahmad, M. Amin","doi":"10.5281/ZENODO.41750","DOIUrl":"https://doi.org/10.5281/ZENODO.41750","url":null,"abstract":"We present the matched illumination waveform design for improved target detection and identity discrimination in through-the-wall radar imaging and sensing applications. We consider a multistatic radar system for detection and identification of stationary targets with known impulse responses behind walls. The stationary and slowly moving nature of typical indoor targets relaxes the orthogonality requirement on the waveforms, thereby allowing sequential transmissions from each transmitter with simultaneous reception at multiple receivers. Numerical electromagnetic modeling is used to provide the impulse responses of a human and a wooden table for different target orientations and at various incident and reflection angles. Simulation results, depicting an improvement in performance of the multistatic radar as compared to monostatic operation, are provided.","PeriodicalId":106989,"journal":{"name":"2009 17th European Signal Processing Conference","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117107952","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
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