Báo cáo hóa học: "A Fast LSF Search Algorithm Based on Interframe " ppt

... located one by one.4. FASTER SEARCH ALGORITHM The study of LSF vectors indicates that there is a strong cor-relation between the LSFs of successive frames and that thechange from one LSF vector ... distinct intervals, each containing only one odd andone even-indexed LSF, thus avoiding the zero crossing search. Another approach to compute LSFs based on split Levinson algorithm has been discussed ... happens, allEURASIP Journal on Applied Signal Processing 2004:8, 1107–1112c 2004 Hindawi Publishing CorporationA Fast LSF Search Algorithm Based on Interframe Correlation in G.723.1Sameer A....

báo cáo hóa học:" A novel voice activity detection based on phoneme recognition using statistical model" ppt

... noise at SNR = 0 (a) based on the proposed VAD; (b) based on the combinedmethod.Figure 8. VAD at non-stationary noise at SNR = 0 (a) based on the proposed VAD; (b) based on the combined method.174. ... suppression methods is givenin Section 3. The detail experiments and simulation results are shown in Section 4. Finally, the discussionand conclusion are drawn in Section 5 and Section 6 respectively.3Log ... A voice activity detection based on the adaptive integration ofmultiple speech features and signal decision scheme, in Proceedings of the IEEE International Conference on Acoustics, Speech and...

Báo cáo hóa học: " A Complete Image Compression Scheme Based on Overlapped Block Transform with Post-Processing" pptx

... and H. Yan, “Artifact reduc-tion in compressed images based on region homogeneity con-straints using the projections onto convex sets algorithm, ”IEEE Transactions on Circuits and Systems for ... true wavelet decomposition, one iterates on the lowpassoutput only, whereas for a wavelet-packet decomposition,one may iterate on any output.Progressive image transmission scheme is perfect for ... disciplines. The instrument was flown on two flights in1994. One was on space shuttle Endeavor on mission STS-59April 9–20, 1994. The second flight was on shuttle Endeavor on STS-68 September 30–October...

Báo cáo hóa học: " A Neural Network MLSE Receiver Based on Natural Gradient Descent: Application to Satellite Communications Mohamed Ibnkahla" pdf

... 16-QAM constellation. (b) Signal constellation at the channel output (H = 1, BO = 2.55 dB). (c) Signal constel-lation at the channel output (H = [1 0.1]t,BO= 2.55 dB). (d) Signal constellation ... back-propagation (BP) [17] algorithm corresponds to the casewhere G equals the identity matrix.The calculation of the expectation in the expression of Grequires the probability distribution of the ... the satellitechannel on the rectangular 16-QAM transmitted constella-tion. The transmitted constellation is illustrated in Figure 3a.Figure 3b shows the output constellation when ﬁlter H = 1,that...

Báo cáo hóa học: " An OFDMA resource allocation algorithm based on coalitional games" doc

... requirements. Algorithms based on the rate-adap-tive criterion (such as [4]) aim on the contrary atachieving the maximum data rate subject to differentQoS constraints.Most algorithms focus on the ... Wu, Y Cai, W Zhong, Power allocation based on power efficiencyin uplink OFDMA systems: a game theoretic approach, in Proceedings of theIEEE International Conference on Communication Systems (ICCS), ... IEEEInternational Conference Communications, Cape Town, South Africa,(May 2010)doi:10.1186/1687-1499-2011-46Cite this article as: Sh ams et al.: An OFDMA resource allocation algorithm based on coalitional...

Báo cáo hóa học: " A fast iterative localized re-authentication protocol for UMTS-WLAN heterogeneous mobile communication networks" pot

... authentication), AV generation, key genera-tion, SQN-synchronization and encryption. On theother h and, the fast re-authentication session does notneed to retrieve new AV s from the HLR/HSS, thus onlythe ... is one-direction propagationdelay between different network entity sections. Thepropagation delay of EAP-AKA protocol is constitutedof three propagation sections in the simulation model.One ... authentication session time in theconventional full authent ication and in the conventional fast re-authentication is 96.457 and 50.145 (ms), respec-tively. As a result of the reduction in authentication-related...

Báo cáo hóa học: " A Fast Algorithm for Image Super-Resolution from Blurred Observations" potx

... USA2Department of Mathematics, Hong Kong Baptist University, Kowloon Tong, Hong Kong3Department of Mathematics, Faculty of Science, The University of Hong Kong, Pokfulam Road, Hong Kong, ChinaReceived ... Magnetic Resonance in Medicine, vol. 45,no. 1, pp. 29–35, 2001.[23] M. Elad and Y. Hel-Or, “A fast super-resolution reconstruction algorithm for pure translational motion and common space-invariant ... image reconstruction. By using our results,we construct a preconditioner for solving the linear systemarising from the optimization of the MAP objective functionwhen other boundary conditions are...

Tài liệu Báo cáo khoa học: "A Best-First Search Algorithm for Generating Referring Expressions" pot

... the search space considerably.6 ConclusionIn this paper, we have presented a best-first search algorithm for producing referringexpressions that identify sets of objects. Thepower of the algorithm ... combinationfollowing the one chosen at the mother node.The generation of boolean combinations is doneby the function Generate-Next. It successivelybuilds increasingly complex disjunctions ofdescriptors ... compositionality in mappingdescriptors onto surface expressions, assumingconflations are not possible. A value cut-off iscarried out globally after a solution has beenfound. This is done for...

báo cáo hóa học: " A new measurement method for spine reposition sense" ppt

... test-retest portion because the smallest repositionsense error occurred over these trials in the initial repeatedtrials portion. Subjects tested on two occasions one weekapart demonstrated ICC ... Motion Capture and Analysis System.A portion this study was supported in part by a Concordia Intramural Research Grant and was approved by the Concordia University Wisconsin Institutional ... positions: initial position, (Fig-ure 1) full trunk flexion position and the estimated 2/3position (Figure 2). The subject was allowed to rest 10 sec-onds between each trial. Examiner two consistently...

báo cáo hóa học:" A Practical Two Stage MMSE based MIMO detector for Interference Mitigation with Non-Cooperative Interferers" doc

... synchronization algorithms. The p erformance improvementsdemonstrated in this work should be directly applicable to all packet -based sys-tems that require on packet detection and timing synchronization.We ... Finally, Section 5 will concludethis work.2...

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