发布求助
文献互助 智能选刊 最新文献

1993 IEEE International Conference on Acoustics, Speech, and Signal Processing最新文献

筛选
英文 中文
Adapting the geometry of a sensor subarray 调整传感器子阵列的几何形状
1993 IEEE International Conference on Acoustics, Speech, and Signal Processing Pub Date : 1993-04-27 DOI: 10.1109/ICASSP.1993.319607
H. Alnajjar, D. Wilkes
{"title":"Adapting the geometry of a sensor subarray","authors":"H. Alnajjar, D. Wilkes","doi":"10.1109/ICASSP.1993.319607","DOIUrl":"https://doi.org/10.1109/ICASSP.1993.319607","url":null,"abstract":"The authors present an algorithm for adapting the size and geometry of a subarray (of a much larger array) to optimize the detection and resolution performance of the subarray. This allows the efficient and accurate use of high resolution direction of arrival (DOA) estimation algorithms. The two source case is analyzed in detail and a critical distance definition is developed that plays a major role in analyzing the resolution performance of an array. A simple procedure is presented for designing a planar array yielding high resolution performance.<<ETX>>","PeriodicalId":428449,"journal":{"name":"1993 IEEE International Conference on Acoustics, Speech, and Signal Processing","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130930383","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
Noise robustness in the auditory representation of speech signals 语音信号听觉表示中的噪声鲁棒性
1993 IEEE International Conference on Acoustics, Speech, and Signal Processing Pub Date : 1993-04-27 DOI: 10.1109/ICASSP.1993.319306
Kuansan Wang, S. Shamma, W. Byrne
{"title":"Noise robustness in the auditory representation of speech signals","authors":"Kuansan Wang, S. Shamma, W. Byrne","doi":"10.1109/ICASSP.1993.319306","DOIUrl":"https://doi.org/10.1109/ICASSP.1993.319306","url":null,"abstract":"A common sequence of operations in the early stages of most biological sensory systems is a wavelet transform followed by a compressive nonlinearity. The contribution of these operations to the formation of robust and perceptually significant representations in the auditory system is explored. It is demonstrated that the neural representation of a complex signal such as speech is derived from a highly reduced version of its wavelet transform, specifically, from the distribution of its locally averaged zero-crossing rates along the temporal and scale axes. It is shown analytically that such encoding of the wavelet transform results in mutual suppressive interactions across its different scale representations. Suppression in turn endows the representation with enhanced spectral peaks and superior robustness in noisy environments. Examples using natural speech vowels are presented to illustrate the results.<<ETX>>","PeriodicalId":428449,"journal":{"name":"1993 IEEE International Conference on Acoustics, Speech, and Signal Processing","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131145468","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
Vector quantized MBE with simplified V/UV division at 3.0 kbit/s 矢量量化MBE，简化V/UV分割速度为3.0 kbit/s
1993 IEEE International Conference on Acoustics, Speech, and Signal Processing Pub Date : 1993-04-27 DOI: 10.1109/ICASSP.1993.319255
M. Nishiguchi, J. Matsumoto, Ryoji Wakatsuki, Shinobu Ono
{"title":"Vector quantized MBE with simplified V/UV division at 3.0 kbit/s","authors":"M. Nishiguchi, J. Matsumoto, Ryoji Wakatsuki, Shinobu Ono","doi":"10.1109/ICASSP.1993.319255","DOIUrl":"https://doi.org/10.1109/ICASSP.1993.319255","url":null,"abstract":"A speech coding algorithm for application to the Japan digital cellular half-rate coder has been developed based on the multiband excitation (MBE) algorithm using 3.0 kbit/s. The target performance is at the same level as that of a full-rate coder operating at 6.7 kbit/s. The quantization scheme for the spectral envelope of the MBE coder parameters is described. New features of the scheme include an efficient dimension converter, interframe coding of spectral envelope vectors, and multistage vector quantization with interpolative vector quantization. A simplified model of voiced/unvoiced division and a method of detecting/manipulating background noise have also been devised for MBE analysis. Informal listening tests indicate that, while the quality is slightly lower than that of a full-rate coder, it is nevertheless sufficiently high for digital telephony.<<ETX>>","PeriodicalId":428449,"journal":{"name":"1993 IEEE International Conference on Acoustics, Speech, and Signal Processing","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132864063","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: 38
Optimized code generation for programmable digital signal processors 优化代码生成的可编程数字信号处理器
1993 IEEE International Conference on Acoustics, Speech, and Signal Processing Pub Date : 1993-04-27 DOI: 10.1109/ICASSP.1993.319155
K. H. Yu, Y. Hu
{"title":"Optimized code generation for programmable digital signal processors","authors":"K. H. Yu, Y. Hu","doi":"10.1109/ICASSP.1993.319155","DOIUrl":"https://doi.org/10.1109/ICASSP.1993.319155","url":null,"abstract":"The authors present a novel compilation model for optimized code generation for programming digital signal processors (PDSPs). The model uses artificial intelligence techniques to yield output code that is comparable (in some cases superior) to that of handwritten assembly codes by DSP experts. Porting the code generator to different PDSPs requires modifying only two processor-dependent modules: a pattern library and a rule base. A prototype code generator has been implemented, targeting a subset of the TMS32020's architecture and instruction set. Several case studies are presented, which demonstrate the feasibility of the proposed approach.<<ETX>>","PeriodicalId":428449,"journal":{"name":"1993 IEEE International Conference on Acoustics, Speech, and Signal Processing","volume":"19 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132933383","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
An evaluation of the new FORTRAN 90 standard relative to DSP algorithm implementations 新FORTRAN 90标准相对于DSP算法实现的评价
1993 IEEE International Conference on Acoustics, Speech, and Signal Processing Pub Date : 1993-04-27 DOI: 10.1109/ICASSP.1993.319040
D. Etter
{"title":"An evaluation of the new FORTRAN 90 standard relative to DSP algorithm implementations","authors":"D. Etter","doi":"10.1109/ICASSP.1993.319040","DOIUrl":"https://doi.org/10.1109/ICASSP.1993.319040","url":null,"abstract":"The FORTRAN 90 language definition has now been accepted as a national standard (ANSI) and as an international standard (ISO). This new standard includes a number of very significant additions to the language such as dynamic array location, recursion, single-step array operations, and pointer variables. The author evaluates the new FORTRAN standard particularly with reference to developing and implementing digital signal processing algorithms. FORTRAN 90 is a language with significant new capabilities for solving DSP problems.<<ETX>>","PeriodicalId":428449,"journal":{"name":"1993 IEEE International Conference on Acoustics, Speech, and Signal Processing","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132954848","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
Left ventricle global motion and shape from CT volumetric data CT体积数据显示左心室整体运动和形状
1993 IEEE International Conference on Acoustics, Speech, and Signal Processing Pub Date : 1993-04-27 DOI: 10.1109/ICASSP.1993.319757
C. W. Chen, Jiebo Luo, Thomas S. Huang
{"title":"Left ventricle global motion and shape from CT volumetric data","authors":"C. W. Chen, Jiebo Luo, Thomas S. Huang","doi":"10.1109/ICASSP.1993.319757","DOIUrl":"https://doi.org/10.1109/ICASSP.1993.319757","url":null,"abstract":"The authors address the problem of estimating left ventricle (LV) global motion and shape from CT (computed tomography) volumetric data based on surface modeling. An improved approach able to estimate the global motion and deformation as well as to construct a parametrized global shape of the LV has been developed. The global rigid motion of the LV is computed from the position and orientation change of an estimated time-varying and object-centered coordinate system, while the global deformations are obtained through the fitting of global shape modeling primitives to the given digital volumes of the LV. Major improvements over the initial effort (C.W. Chen and T.S. Huang, 1992) include a robust algorithm for the LV long axis estimation and the implementation of weighted surface fitting based on the original image statistics of the boundary points.<<ETX>>","PeriodicalId":428449,"journal":{"name":"1993 IEEE International Conference on Acoustics, Speech, and Signal Processing","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133031705","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
Performance comparison of matched filter receiver and twin processor for abutted waveforms 匹配滤波器接收机与双处理器对相邻波形的性能比较
1993 IEEE International Conference on Acoustics, Speech, and Signal Processing Pub Date : 1993-04-27 DOI: 10.1109/ICASSP.1993.319124
S. K. Mehta, E. Titlebaum
{"title":"Performance comparison of matched filter receiver and twin processor for abutted waveforms","authors":"S. K. Mehta, E. Titlebaum","doi":"10.1109/ICASSP.1993.319124","DOIUrl":"https://doi.org/10.1109/ICASSP.1993.319124","url":null,"abstract":"A new receiver structure is described for abutted waveform detection and estimation. The authors propose using abutted waveforms for a twin processor processing technique that reduces sidelobe interaction, thereby providing improved clutter rejection. The twin processor requires two looks at the channel, and using abutted waveforms it is possible to obtain both Doppler and range resolution. This makes it possible to design better detectors and to obtain improved estimates of the scattering function. The performance of the abutted waveform matched filter is evaluated and then compared to that of the twin processor.<<ETX>>","PeriodicalId":428449,"journal":{"name":"1993 IEEE International Conference on Acoustics, Speech, and Signal Processing","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133402256","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
Representing and exploiting data parallelism using multidimensional dataflow diagrams 使用多维数据流图表示和利用数据并行性
1993 IEEE International Conference on Acoustics, Speech, and Signal Processing Pub Date : 1993-04-27 DOI: 10.1109/ICASSP.1993.319153
Edward A. Lee
{"title":"Representing and exploiting data parallelism using multidimensional dataflow diagrams","authors":"Edward A. Lee","doi":"10.1109/ICASSP.1993.319153","DOIUrl":"https://doi.org/10.1109/ICASSP.1993.319153","url":null,"abstract":"The author shows how a graphical programming environment like those commonly used for signal processing can expose data parallelism. In particular, he sets objectives for the syntax and semantics of graphical programs. It is shown that the synchronous dataflow model can be extended to multidimensional streams to represent and exploit data parallelism in signal processing applications. The resulting semantics are related to reduced dependence graphs used in systolic array design and to the stream-oriented functional languages Lucid, Sisal, and Silage. Formal properties are developed.<<ETX>>","PeriodicalId":428449,"journal":{"name":"1993 IEEE International Conference on Acoustics, Speech, and Signal Processing","volume":"313 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133318262","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: 24
Analysis and improvement of the partial distance search algorithm 部分距离搜索算法的分析与改进
1993 IEEE International Conference on Acoustics, Speech, and Signal Processing Pub Date : 1993-04-27 DOI: 10.1109/ICASSP.1993.319300
L. Fissore, P. Laface, P. Massafra, F. Ravera
{"title":"Analysis and improvement of the partial distance search algorithm","authors":"L. Fissore, P. Laface, P. Massafra, F. Ravera","doi":"10.1109/ICASSP.1993.319300","DOIUrl":"https://doi.org/10.1109/ICASSP.1993.319300","url":null,"abstract":"The partial distance search algorithm (PDS) introduced for reducing the computational complexity of the nearest neighbor search in vector quantization is analyzed. In particular, a detailed analysis of the computational savings that can be obtained by minor modifications to this algorithm is performed. A dynamic programming procedure is proposed that automatically determines how often the comparison with the current minimum distance has to be done in order to minimize the expected global cost of the search. The number and position of the comparisons within the distance evaluation loop depend on the ratio of the cost of a comparison operation to that of the partial distance evaluation. It is shown that the two costs are comparable for RISC (reduced instruction set computer) processors, and a 25% speedup with respect to the PDS algorithm is reported for 24 dimension feature vectors used in a continuous-density HMM (hidden Markov model) system with 16 Gaussian mixtures per state.<<ETX>>","PeriodicalId":428449,"journal":{"name":"1993 IEEE International Conference on Acoustics, Speech, and Signal Processing","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133338401","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: 14
On the choice of 'wavelet' filter for still image compression 关于小波滤波器在静态图像压缩中的选择
1993 IEEE International Conference on Acoustics, Speech, and Signal Processing Pub Date : 1993-04-27 DOI: 10.1109/ICASSP.1993.319870
O. Rioul
{"title":"On the choice of 'wavelet' filter for still image compression","authors":"O. Rioul","doi":"10.1109/ICASSP.1993.319870","DOIUrl":"https://doi.org/10.1109/ICASSP.1993.319870","url":null,"abstract":"The author addresses how regularity, frequency selectivity, and phase act upon the performance of a still image compression scheme using wavelet decomposition. Preliminary results are given for a simple compression scheme using orthonormal separable wavelet transforms, scalar quantization, rate/distortion optimization, various coding criteria, and a large number of 'wavelet' filters with balanced regularity, frequency selectivity, and phase. It is shown that regularity may be relevant for still image compression, at least for short filters (L<or=12), for which the regularity order is relatively small. Using more regular filters is probably useless, as the compression performance does not greatly improve for longer filters. Moreover, the effect of phase seems negligible for orthonormal filters.<<ETX>>","PeriodicalId":428449,"journal":{"name":"1993 IEEE International Conference on Acoustics, Speech, and Signal Processing","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1993-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132171888","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: 49
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：481959085
Book学术官方微信