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Proceedings of IEEE 6th Digital Signal Processing Workshop最新文献

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An introduction to engineering with signal processing 信号处理工程导论
Proceedings of IEEE 6th Digital Signal Processing Workshop Pub Date : 1994-10-02 DOI: 10.1109/DSP.1994.379856
D. Etter
{"title":"An introduction to engineering with signal processing","authors":"D. Etter","doi":"10.1109/DSP.1994.379856","DOIUrl":"https://doi.org/10.1109/DSP.1994.379856","url":null,"abstract":"Engineers of the 21st century will work in an environment that will require a variety of skills that include not only traditional engineering topics but that also includes more emphasis on topics such as communications, teamwork, the design/process/manufacture steps for taking a concept to a product, and combining the techno-scientific base with a societal context. This paper discusses a pilot section of a freshman course entitled Engineering Projects that is designed to introduce new students to engineering through a design-oriented course in which students \"learn by doing\". This course is part of the curriculum being developed for the Integrated Teaching Laboratory (ITL) that is being built at the University of Colorado to provide interdisciplinary design and development experiences for engineering students beginning at the freshman level.<<ETX>>","PeriodicalId":189083,"journal":{"name":"Proceedings of IEEE 6th Digital Signal Processing Workshop","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115473652","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
Complex signal reconstruction from time-frequency magnitude 基于时频幅值的复信号重构
Proceedings of IEEE 6th Digital Signal Processing Workshop Pub Date : 1994-10-02 DOI: 10.1109/DSP.1994.379818
J.C. Anderson
{"title":"Complex signal reconstruction from time-frequency magnitude","authors":"J.C. Anderson","doi":"10.1109/DSP.1994.379818","DOIUrl":"https://doi.org/10.1109/DSP.1994.379818","url":null,"abstract":"A complex sequence can be recovered to within an overall constant phase factor from its generalized short-time Fourier transform magnitude, which includes the wavelet scalogram and short-time Fourier transform magnitude as special cases.<<ETX>>","PeriodicalId":189083,"journal":{"name":"Proceedings of IEEE 6th Digital Signal Processing Workshop","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132573026","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
Euclidean input mapping in a N-tuple approximation network n元组近似网络中的欧几里德输入映射
Proceedings of IEEE 6th Digital Signal Processing Workshop Pub Date : 1994-10-02 DOI: 10.1109/DSP.1994.379821
A. Kolcz, N. Allinson
{"title":"Euclidean input mapping in a N-tuple approximation network","authors":"A. Kolcz, N. Allinson","doi":"10.1109/DSP.1994.379821","DOIUrl":"https://doi.org/10.1109/DSP.1994.379821","url":null,"abstract":"A type of the N-tuple neural architecture can be shown to perform function approximation based on local interpolation, similar that performed by RBF networks. Since the size and speed of operation in this implementation are independent of the training set size, it is attractive for practical adaptive solutions. However, the kernel function used by the network is non-Euclidean, which can cause performance losses for high-dimensional input data. The authors investigate methods for realising more isotropic kernel basis functions by use of special data encoding techniques.<<ETX>>","PeriodicalId":189083,"journal":{"name":"Proceedings of IEEE 6th Digital Signal Processing Workshop","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126576566","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
High-resolution beamforming in the presence of coherent interferences and unknown correlated noise 存在相干干扰和未知相关噪声的高分辨率波束形成
Proceedings of IEEE 6th Digital Signal Processing Workshop Pub Date : 1994-10-02 DOI: 10.1109/DSP.1994.379831
R. Rajagopal, K. Anoop Kumar, P. Ramakrishna Rao
{"title":"High-resolution beamforming in the presence of coherent interferences and unknown correlated noise","authors":"R. Rajagopal, K. Anoop Kumar, P. Ramakrishna Rao","doi":"10.1109/DSP.1994.379831","DOIUrl":"https://doi.org/10.1109/DSP.1994.379831","url":null,"abstract":"In many applications of adaptive beamformers, performance of beamformers is degraded due to the presence of correlated interferences. Further, the additive noise is non-white with unknown covariance matrix whereas the beamforming algorithms assume that the noise is white. This situation leads to further deterioration in the performance of the beamformers. Whereas the former problem has been addressed by many authors, the latter has received very little attention. In the paper, a high-resolution beamforming algorithm is presented which is applicable when the interferences are fully/highly correlated with the desired signal and when the noise is spatially correlated with unknown covariance matrix. This algorithm makes use of an invariance property satisfied by persymmetric matrices to cancel out the noise covariance matrix while forming a difference matrix. The columns of this difference matrix are used to form the optimum weight vector. Two types of beamformers are considered. They are a) optimum interference notch beamformer and b) optimal combiner. Simulation results are also presented to support the theory.<<ETX>>","PeriodicalId":189083,"journal":{"name":"Proceedings of IEEE 6th Digital Signal Processing Workshop","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129586227","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
An experimental simulation lab in MathCAD for teaching signal processing 基于MathCAD的信号处理教学仿真实验
Proceedings of IEEE 6th Digital Signal Processing Workshop Pub Date : 1994-10-02 DOI: 10.1109/DSP.1994.379859
J. M. Ramirez, D. Baez-López
{"title":"An experimental simulation lab in MathCAD for teaching signal processing","authors":"J. M. Ramirez, D. Baez-López","doi":"10.1109/DSP.1994.379859","DOIUrl":"https://doi.org/10.1109/DSP.1994.379859","url":null,"abstract":"MathCAD is a powerful tool in the engineering field to analyze complex systems through the computation of the corresponding mathematical models. The experience obtained from the use of MathCAD as a complementary laboratory for teaching signal processing in both cases, continuous and discrete, is presented. A collection of different cases-of-study in the area of signal processing such as Nyquist criteria, digital filtering in the time domain by difference equations, relation to frequency response in both continuous and discrete domains, modulation, and other examples is presented. Their use in the classroom to support experimental work in the electrical engineering curricula at the batchelor level in Universidad de las Americas during several semesters is discussed.<<ETX>>","PeriodicalId":189083,"journal":{"name":"Proceedings of IEEE 6th Digital Signal Processing Workshop","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122735693","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
On the statistically optimum FIR filter bank design 统计最优FIR滤波器组设计
Proceedings of IEEE 6th Digital Signal Processing Workshop Pub Date : 1994-10-02 DOI: 10.1109/DSP.1994.379835
I. Sodagar, T. Barnwell, M.J.T. Smith
{"title":"On the statistically optimum FIR filter bank design","authors":"I. Sodagar, T. Barnwell, M.J.T. Smith","doi":"10.1109/DSP.1994.379835","DOIUrl":"https://doi.org/10.1109/DSP.1994.379835","url":null,"abstract":"The paper is concerned with the analysis and design of statistically optimum FIR filter banks. In such systems, the analysis/synthesis system and the subband quantizers are designed jointly to provide the minimum distortion in the reconstructed signal. In the paper, a new approach to this problem is introduced. Using the time-domain formulation of Nayebi et al. [1992], the present authors derive a formula for the mean square error (MSE) of the output signal. The resulting formulation provides a general framework for the optimum filter bank design problem and includes previous reported formulations. This approach can be used to design the optimal filter bank and quantizers for a given wide sense stationary signal.<<ETX>>","PeriodicalId":189083,"journal":{"name":"Proceedings of IEEE 6th Digital Signal Processing Workshop","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125456291","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
Selection of a processor for a portable MaxiCode reader 便携式MaxiCode阅读器的处理器选择
Proceedings of IEEE 6th Digital Signal Processing Workshop Pub Date : 1994-10-02 DOI: 10.1109/DSP.1994.379886
D. Borkowski, P. Das, Fan-Ching Tao
{"title":"Selection of a processor for a portable MaxiCode reader","authors":"D. Borkowski, P. Das, Fan-Ching Tao","doi":"10.1109/DSP.1994.379886","DOIUrl":"https://doi.org/10.1109/DSP.1994.379886","url":null,"abstract":"In developing a portable device capable of capturing and decoding the two-dimensional MaxiCode symbology, the authors researched and benchmarked several microprocessors. The processor had to be able to quickly execute DSP algorithms, including FFT's and filters. It needed to be small, inexpensive, and have low power consumption. Ease of software development was also a consideration. It may come as a surprise to some that a RISC processor was selected rather than a DSP chip.<<ETX>>","PeriodicalId":189083,"journal":{"name":"Proceedings of IEEE 6th Digital Signal Processing Workshop","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131554231","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
Magnitude squared design of recursive filters with the Chebyshev norm using a constrained rational Remez algorithm 基于约束有理Remez算法的切比雪夫范数递归滤波器的模值平方设计
Proceedings of IEEE 6th Digital Signal Processing Workshop Pub Date : 1994-10-02 DOI: 10.1109/DSP.1994.379882
I. Selesnick, M. Lang, C. Burrus
{"title":"Magnitude squared design of recursive filters with the Chebyshev norm using a constrained rational Remez algorithm","authors":"I. Selesnick, M. Lang, C. Burrus","doi":"10.1109/DSP.1994.379882","DOIUrl":"https://doi.org/10.1109/DSP.1994.379882","url":null,"abstract":"We describe a Remez type exchange algorithm for the design of stable recursive filters for which the Chebyshev norm of H(/spl omega/)-F(/spl omega/) is minimized, where H(/spl omega/) and F(/spl omega/) are the realized and desired magnitude squared frequency responses. The number of poles and zeros can be chosen arbitrarily and the zeros do not have to lie on the unit circle. The algorithm allows us to design filters with non-conventional frequency responses with arbitrary weighting functions. It also gives optimal minimum phase FIR filters and elliptic recursive filters as special cases. We discuss three main difficulties in the use of the Remez algorithm for recursive filter design and give ways to overcome them.<<ETX>>","PeriodicalId":189083,"journal":{"name":"Proceedings of IEEE 6th Digital Signal Processing Workshop","volume":"142 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129314525","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: 19
The normalized TDM-LeRoux-Gueguen algorithm for multichannel adaptive filters 多通道自适应滤波器的归一化TDM-LeRoux-Gueguen算法
Proceedings of IEEE 6th Digital Signal Processing Workshop Pub Date : 1994-10-02 DOI: 10.1109/DSP.1994.379820
C. Kranz
{"title":"The normalized TDM-LeRoux-Gueguen algorithm for multichannel adaptive filters","authors":"C. Kranz","doi":"10.1109/DSP.1994.379820","DOIUrl":"https://doi.org/10.1109/DSP.1994.379820","url":null,"abstract":"A new algorithm for the calculation of time dependent coefficients of a multichannel autoregressive lattice filter, using the least squares method, is presented. One of the main advantages of this algorithm is the totally scalar realisation, without any matrix or vector operation The applied time-division-multiplex (TDM) principle and a square root normalisation leads to a highly symmetric lattice filter with guaranteed stability. From the pure order recursive construction of the algorithm follows the completely independence between the coefficient calculation and the covariance estimation. That means, there is no round off error propagation in time and higher order recursive windows are possible. The algorithm can be seen as a extension of the generalized LeRoux-Gueguen algorithm.<<ETX>>","PeriodicalId":189083,"journal":{"name":"Proceedings of IEEE 6th Digital Signal Processing Workshop","volume":"33 13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127615226","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
The Signal Processing Information Base: a road to electronic information exchange 信号处理信息库:一条通向电子信息交换的道路
Proceedings of IEEE 6th Digital Signal Processing Workshop Pub Date : 1994-10-02 DOI: 10.1109/DSP.1994.379855
D.H. Johnson
{"title":"The Signal Processing Information Base: a road to electronic information exchange","authors":"D.H. Johnson","doi":"10.1109/DSP.1994.379855","DOIUrl":"https://doi.org/10.1109/DSP.1994.379855","url":null,"abstract":"The Signal Processing Information Base (SPIB) project, funded by the NSF and supported by the Signal Processing Society, represents a first attempt to make widely available data, papers, software, and paper in a timely, effective fashion. Information dissemination via computer networks and sifting through information with search software would seem straightforward. However, modern publication involves not only prose, but also tables, graphics, plots, and many kinds of data displays-images, which makes the representation problem more severe. Policy oriented issues such as peer review and copyright have also emerged to complicate the desire to publish information quickly and widely. As the SPIB evolves, in concert with similar projects in a wide variety of disciplines, into a seamless, cross-linked, indexed, computer network that makes information available rapidly, these difficulties will intensify unless software environments are created that can support high-speed networks and platforms, and publication policies change to facilitate rapid dissemination.<<ETX>>","PeriodicalId":189083,"journal":{"name":"Proceedings of IEEE 6th Digital Signal Processing Workshop","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122192608","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
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