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Functional design verification of the NS32FX16 NS32FX16的功能设计验证
17th Convention of Electrical and Electronics Engineers in Israel Pub Date : 1991-03-05 DOI: 10.1109/EEIS.1991.217638
C. Hanoch, S. Peleg, T. Segal
{"title":"Functional design verification of the NS32FX16","authors":"C. Hanoch, S. Peleg, T. Segal","doi":"10.1109/EEIS.1991.217638","DOIUrl":"https://doi.org/10.1109/EEIS.1991.217638","url":null,"abstract":"The NS32FX16 imaging/signal processor is specifically optimized for a facsimile and modem applications. This paper gives a description of the functional design verification needs of the NS32FX16 and the FDV tool which was used and made this achievement possible.<<ETX>>","PeriodicalId":118653,"journal":{"name":"17th Convention of Electrical and Electronics Engineers in Israel","volume":"8 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120985955","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
Grating assisted SAW directional couplers 光栅辅助SAW定向耦合器
17th Convention of Electrical and Electronics Engineers in Israel Pub Date : 1991-03-05 DOI: 10.1109/EEIS.1991.217673
G. Golan, I. Haruvy, M. Zilberstein, A. Seidman, N. Croitoru
{"title":"Grating assisted SAW directional couplers","authors":"G. Golan, I. Haruvy, M. Zilberstein, A. Seidman, N. Croitoru","doi":"10.1109/EEIS.1991.217673","DOIUrl":"https://doi.org/10.1109/EEIS.1991.217673","url":null,"abstract":"The spectral properties of a conventional directional coupler and the grating assisted co-directional coupler are investigated. These properties are compared with those of the contra directional coupler. In particular, expressions for the fractional bandwidth and the frequency tunability of these structures are found.<<ETX>>","PeriodicalId":118653,"journal":{"name":"17th Convention of Electrical and Electronics Engineers in Israel","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125924140","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
Reachability in discrete event systems modeled as hierarchical state machines 用分层状态机建模的离散事件系统中的可达性
17th Convention of Electrical and Electronics Engineers in Israel Pub Date : 1991-03-05 DOI: 10.1109/EEIS.1991.217705
Y. Brave, M. Heymann
{"title":"Reachability in discrete event systems modeled as hierarchical state machines","authors":"Y. Brave, M. Heymann","doi":"10.1109/EEIS.1991.217705","DOIUrl":"https://doi.org/10.1109/EEIS.1991.217705","url":null,"abstract":"Discrete event systems (DESs) are systems in which state changes take place in response to events that occur discretely, asynchronously and often nondeterministically. This paper considers a class of DESs modeled as hierarchical state machines (HSMs), a special case of the statecharts formalism. The authors provide an efficient algorithm for solving reachability problems in the HSM framework that utilizes the hierarchical structure of HSMs. This efficient solution is used extensively in control applications, where controllers achieving a desired behaviour are synthesized on-line.<<ETX>>","PeriodicalId":118653,"journal":{"name":"17th Convention of Electrical and Electronics Engineers in Israel","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126830020","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
Trends in microprocessor cache architectures 微处理器缓存架构的发展趋势
17th Convention of Electrical and Electronics Engineers in Israel Pub Date : 1991-03-05 DOI: 10.1109/EEIS.1991.217645
A. Golbert
{"title":"Trends in microprocessor cache architectures","authors":"A. Golbert","doi":"10.1109/EEIS.1991.217645","DOIUrl":"https://doi.org/10.1109/EEIS.1991.217645","url":null,"abstract":"The cache is a key computer architecture element which bridges the high performance of the CPU-core to the slower memory environment. This paper provides a tutorial on the need for caches, their basic performance elements, and their usage in real microprocessors.<<ETX>>","PeriodicalId":118653,"journal":{"name":"17th Convention of Electrical and Electronics Engineers in Israel","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126962552","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
Spatial energy confinement and electrical response of a phase shifted surface acoustic wave resonator 相移表面声波谐振器的空间能量约束与电响应
17th Convention of Electrical and Electronics Engineers in Israel Pub Date : 1991-03-05 DOI: 10.1109/EEIS.1991.217674
B. Kantor, S. Zehavi, J. Salzman
{"title":"Spatial energy confinement and electrical response of a phase shifted surface acoustic wave resonator","authors":"B. Kantor, S. Zehavi, J. Salzman","doi":"10.1109/EEIS.1991.217674","DOIUrl":"https://doi.org/10.1109/EEIS.1991.217674","url":null,"abstract":"This paper shows that an active pi /2 shifted SAW resonator supports a spatial mode highly confined to the region of the phase shift.<<ETX>>","PeriodicalId":118653,"journal":{"name":"17th Convention of Electrical and Electronics Engineers in Israel","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130624347","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
On maximum likelihood soft decoding of some binary self dual codes 一些二进制自对偶码的最大似然软译码
17th Convention of Electrical and Electronics Engineers in Israel Pub Date : 1991-03-05 DOI: 10.1109/EEIS.1991.217739
M. Ran, J. Snyders
{"title":"On maximum likelihood soft decoding of some binary self dual codes","authors":"M. Ran, J. Snyders","doi":"10.1109/EEIS.1991.217739","DOIUrl":"https://doi.org/10.1109/EEIS.1991.217739","url":null,"abstract":"The authors present and compare the performance of maximum likelihood (ML) soft decoding algorithms for binary linear self-dual (SD) codes. The codes considered have a minimum distance of 4, but due to their different weight distributions they differ in their coding gain. Remarkably, there is a code, denoted F/sub 24/, which has a decoder nearly 4 times faster than the fastest published decoder (6) for the (24,12,8) Golay code. Nontheless, these two codes have almost equal coding gains. Simulation results are given to compare between the codes. An analytical discussion of the results appears in an Appendix.<<ETX>>","PeriodicalId":118653,"journal":{"name":"17th Convention of Electrical and Electronics Engineers in Israel","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122259767","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
Bispectral analysis of speech 语音的双谱分析
17th Convention of Electrical and Electronics Engineers in Israel Pub Date : 1991-03-05 DOI: 10.1109/EEIS.1991.217695
M. Hinich, E. Shichor
{"title":"Bispectral analysis of speech","authors":"M. Hinich, E. Shichor","doi":"10.1109/EEIS.1991.217695","DOIUrl":"https://doi.org/10.1109/EEIS.1991.217695","url":null,"abstract":"Bispectral analysis is a more suitable signal processing approach for certain speech applications than conventional spectral analysis. There are two major reasons for applying the bispectral approach: (1) the bispectrum carries the signal phase information, and can thus be used to estimate the signal waveform and not just its spectrum; (2) since the third order moments of a Gaussian noise are all zero, the bispectral estimator is a better estimator of a voiced speech signal in the presence of Gaussian noise. Two examples demonstrate the advantages of this approach.<<ETX>>","PeriodicalId":118653,"journal":{"name":"17th Convention of Electrical and Electronics Engineers in Israel","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131842926","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: 6
Universal prediction of individual sequences 对单个序列的普遍预测
17th Convention of Electrical and Electronics Engineers in Israel Pub Date : 1991-03-05 DOI: 10.1109/EEIS.1991.217658
M. Feder, N. Merhav, M. Gutman
{"title":"Universal prediction of individual sequences","authors":"M. Feder, N. Merhav, M. Gutman","doi":"10.1109/EEIS.1991.217658","DOIUrl":"https://doi.org/10.1109/EEIS.1991.217658","url":null,"abstract":"The problem of sequentially determining the next, future, outcome of a specific binary individual sequence, based on its observed past, using a finite state predictor is considered. The authors define the finite state predictability of the (infinite) sequence x/sub 1/ . . . z/sub n/ . . . as the minimum fraction of prediction errors that can be made by any such predictor, and prove that this can be achieved, upto an arbitrary small prescribed distance, for each individual sequence, by fully sequential guessing schemes. The rate at which the sequential guessing schemes approach the predictability is calculated. An efficient guessing procedure is based on the incremental parsing algorithm used in Lempel-Ziv data compression, and its fraction of errors also approaches the predictability of the sequence. Some relations between compressibility and predictability are discussed and use of the predictability as an additional measure for the complexity, or randomness, of the sequence is suggested.<<ETX>>","PeriodicalId":118653,"journal":{"name":"17th Convention of Electrical and Electronics Engineers in Israel","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131684716","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: 381
Bounds on the cut-off rate of the peak shift magnetic recording channel 峰移磁记录通道的截止速率的界限
17th Convention of Electrical and Electronics Engineers in Israel Pub Date : 1991-03-05 DOI: 10.1109/EEIS.1991.217738
S. Shamai, G. Kaplan
{"title":"Bounds on the cut-off rate of the peak shift magnetic recording channel","authors":"S. Shamai, G. Kaplan","doi":"10.1109/EEIS.1991.217738","DOIUrl":"https://doi.org/10.1109/EEIS.1991.217738","url":null,"abstract":"The authors address the peak shift channel, introduced recently by Shamai and Zehavi (1990) to provide a simple statistical model for peak shift generated errors in magnetic recording employing peak detectors. Lower bounds on the cut-off rate as well as the zero-error and noiseless (ideal channel) cut-off rates are derived and presented for some interesting parameters. The extended model of a peak shift channel concatenated in tandem with a binary symmetric channel, which accounts for both impairments-randomly as well as peak shift generated errors, is also treated and a lower bound on the corresponding cut-off rate is presented.<<ETX>>","PeriodicalId":118653,"journal":{"name":"17th Convention of Electrical and Electronics Engineers in Israel","volume":"123 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127057066","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
The unified switched inductor model 统一开关电感模型
17th Convention of Electrical and Electronics Engineers in Israel Pub Date : 1991-03-05 DOI: 10.1109/EEIS.1991.217704
S. Ben-Yaakov
{"title":"The unified switched inductor model","authors":"S. Ben-Yaakov","doi":"10.1109/EEIS.1991.217704","DOIUrl":"https://doi.org/10.1109/EEIS.1991.217704","url":null,"abstract":"The switched inductor model (SIM) is rigorously developed by considering the average voltages and currents in PWM converters. The limitations and error bounds of the SIM are examined and compared with those of the state space average model. The two models are found to be identical when the parasitic resistances are negligibly small. These errors are relatively small in practical converters. Good agreement was also found between computer simulations based on the proposed SIM and experimental results.<<ETX>>","PeriodicalId":118653,"journal":{"name":"17th Convention of Electrical and Electronics Engineers in Israel","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1991-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121890806","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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