Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)最新文献_第8页

Microwave nondestructive testing for classification of Malaysian timber using free-space techniques 利用自由空间技术进行马来西亚木材分类的微波无损检测

Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.950177

H. Al-Mattarneh, Deepak K. Ghodgaonkar, W. Majid

引用次数: 13

Efficient design of minmax ODIF robust stack filters 最小最大ODIF鲁棒堆栈滤波器的高效设计

Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.949771

B. Dumitrescu, I. Tabus, S. Peltonen, J. Astola, E. Dougherty

引用次数: 1

A classification scheme for acoustical room responses 室内声响应的分类方案

Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.950235

S. Bharitkar, C. Kyriakakis

{"title":"A classification scheme for acoustical room responses","authors":"S. Bharitkar, C. Kyriakakis","doi":"10.1109/ISSPA.2001.950235","DOIUrl":"https://doi.org/10.1109/ISSPA.2001.950235","url":null,"abstract":"Room acoustical modes, particularly in small rooms, cause a significant variation in the room responses measured at different locations. Responses measured only a few cm apart can vary by up to 15-20 dB at certain frequencies. This makes it difficult to equalize an audio system for multiple simultaneous listeners. Previous methods have utilized multiple microphones and spatial averaging with equal weighting. We determine representative prototypical room responses derived from several room responses that share similar characteristics. We present a fuzzy unsupervised technique for finding similarities between room responses by clustering the room responses, and determining their prototypical responses. These prototypical responses can then be combined to form a general point response. When we use the inverse of the general point response as an equalizing filter, our results show a significant improvement in equalization performance over single point equalization and spatial averaging methods. Our method also allows a unique determination of the optimal number of representatives that are required for a given set of room responses. Applications of this method thus include equalization and multiple point sound control at home and in automobiles.","PeriodicalId":236050,"journal":{"name":"Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127325696","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

Optimisation algorithm for selecting quadratic time-frequency distributions: performance results and calibration 选择二次时频分布的优化算法:性能结果和校准

Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.949845

V. Sucic, B. Boashash

引用次数: 13

Low power motion estimation algorithm based on temporal correlation and its architecture 基于时间相关的低功耗运动估计算法及其体系结构

Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.950228

Sun-Hyoung Han, Sung-Woo Kwon, T. Lee, M. Lee

引用次数: 7

Exploring computer-generated line graphs through virtual touch 通过虚拟触摸探索计算机生成的线形图

Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.949778

Wai Yu, R. Ramloll, S. Brewster, B. Riedel

引用次数: 38

A software radio approach for the transceiver transition from 2G to 2.5G to 3G 一种用于收发器从2G到2.5G到3G转换的软件无线电方法

Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.950186

A. Kountouris, C. Moy, Luc Rambaud, P. Corre

引用次数: 2

Audio-visual quality and interactions between television audio and video 视听质量和电视音视频之间的相互作用

Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.950174

Alexandre Joly, Nathalie Montard, Marcel Buttin

引用次数: 20

Quadratic and higher order time-frequency analysis based on the short-time Fourier transform 基于短时傅里叶变换的二次高阶时频分析

Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.950211

L. Stanković

{"title":"Quadratic and higher order time-frequency analysis based on the short-time Fourier transform","authors":"L. Stanković","doi":"10.1109/ISSPA.2001.950211","DOIUrl":"https://doi.org/10.1109/ISSPA.2001.950211","url":null,"abstract":"Realization of quadratic and higher order time-frequency (TF) representations based on the short time Fourier transform (STFT) is an practically and theoretically important topic. One possible way to realize quadratic TF distributions by using spectrograms is based on the eigenvalue decomposition of the reduced interference distribution kernel. The other possible method (S-method), which is the topic of this article, is based on the direct relation between the pseudo Wigner distribution (WD) and STFT. In contrast to some other TF representations which are focused on the preservation of marginal properties and the cross terms reduction, this method is derived with the primary goal to preserve the auto-terms quality as in the WD, while avoiding (reducing) the cross-terms. The software and hardware realization of this method is very efficient, since it is completely based on the STFT. By adding one more stage to the already existing systems for the STFT realization one can significantly improve the properties of the TF representation. The S-method can be extended to the cross-terms free (reduced) realizations of the higher order TF representations, such as the polynomial Wigner-Ville distribution, and the L-Wigner distribution. It has also been used for realization of time-scale, and multidimensional space/spatial-frequency representations.","PeriodicalId":236050,"journal":{"name":"Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115318032","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

On the application of chirp modulation in spread spectrum communication systems 啁啾调制在扩频通信系统中的应用

Proceedings of the Sixth International Symposium on Signal Processing and its Applications (Cat.No.01EX467) Pub Date : 1900-01-01 DOI: 10.1109/ISSPA.2001.950190

Yacine Sarni, Rabah Sadoun, A. Belouchrani

引用次数: 10