Báo cáo hóa học: " Blind Synchronization in Asynchronous UWB Networks Based on the Transmit-Reference Scheme" ppt

... Leus, and A J. van der Veen, Blind synchroniza-tion in asynchronous UWB networks based on the transmit-reference scheme,” in Proceedings of 38th Asilomar Conference on Signals, Systems, and Computers ... low-complexity, blind packet synchronization in multiuser TR -UWB systems. Its foremost application couldbe the fast initial code exchange in multiuser asynchronous UWB ad hoc networks. ACKNOWLEDGMENTS The ... exchange their codes at the moment they join the network. The simplest way to solvethis problem is to implement a common code known to all the users in the initialization phase. In existing wireless...

báo cáo hóa học: " A new definition of burnout syndrome based on Farber''''s proposal" pptx

... neglecting tasks, which is consistentwith the description pointed out by the author in the pre-vious section.When using the intersection between the negations of the primitive end-terms as the intermediate ... deterioration in the way theydeal with situations owing to their lack of confidence.Within the framework of this theory, we can understand the lessening of motivation in these subjects as a conse-quence ... interpretations of the segments belonging to the typology reference group were made. For this, the infor-mation contained in each of the selected units was com-pared and a common conceptual denomination...

Báo cáo hóa học: " Research Article Edge Adaptive Color Demosaicking Based on the Spatial Correlation of the Bayer Color Difference" pptx

... diﬀerenceplane, the region classiﬁcation, the edge direction estimation,and the directional interpolation for each green and red/bluechannel interpolation. In the following subsections, the way of interpolating ... direction estimation, the diagonaldirectional edge is considered as the combination of the horizontal and vertical directional edges. According to the determined edge direction, the missing pixels ... considered as a nonsharpedge region and these regions are investigated again in the following region classiﬁcation step: Classiﬁcation 2.3.1.2. Region Classiﬁcation: Edge Patterns. The regions...

Báo cáo hóa học: " Research Article Missing Texture Reconstruction Method Based on Perceptually Optimized Algorithm" ppt

... textures based on the SSIM index.Furthermore, missing texture reconstruction maximizing the SSIM index can be realized by reformulating the nonconvexproblem as a quasi convex problem. Then the proposedmethod ... patch f . The order of the value M is explained in Section 4. In the reconstruction algorithm shown in the following subsection, the target patch f is represented by alinear combination of the selected ... step in the texture synthesis by utilizing multiresolution concepts[8]. Then many methods which perform the exemplar- based inpainting are mainly inspired by the nonpar ametricsampling in [6]....

Báo cáo hóa học: " Research Article Online Speech/Music Segmentation Based on the Variance Mean of Filter Bank Energy" pdf

... ···L is the ﬁlter number index, k is the frequency bin index, M is the number of frequency bins, nis the frame index in the variance calculation window, W is the number of frames in the variance ... to the mentioned value we can, in such a case, successfullydetermine the beginning of the speech segment. The whole framework works online. The delay of the system depends on the longest minimum ... vectormachines,” in Proceedings of the 6th International Conference on Information, Communications and Signal Processing (ICICS’07), pp. 1–5, Singapore, December 2007.8 EURASIP Journal on Advances in...

Báo cáo hóa học: " Research Article Fast Subspace Tracking Algorithm Based on the Constrained Projection Approximation" pdf

... suﬃcient. These facts show the reason for the interest in using subspaces in many applications.3. Constrained Projection ApproximationSubspace TrackingA well-known method for computing the principal ... minimization is the PAST costfunction, (5) leads to the signal subspace. In addition, the aforementioned constraint guarantees the orthonormality of the signal subspace. The use of the forgetting ... tracking the signal subspace recursively. It is based on an interpretation of the signal subspaceas the solution of a constrained minimization task. This algorithm, referred to as the constrained...

Báo cáo hóa học: "Research Article A Color Topographic Map Based on the Dichromatic Reﬂectance Model" doc

... dE) is included in the upper level set Nu(E). Let us underline again that the ﬁrst interlevel sets contain the shading and dark pixels. In opposition, the last ones are likely to contain specularreﬂection ... sets are included in the corresponding color sets.Theoretically, the RGB components of the pixels belong-ing to a color set N (E) are located along the straight line cb,either above the spherical ... sketches a section along the luminance axis). On the other hand, the corresponding intensity planes, called IE,intersect these vectors with varying steps E≥ E.Moreover,since E≥ E, the upper...

Báo cáo hóa học: " Denoising by Sparse Approximation: Error Bounds Based on Rate-Distortion Theory" ppt

... rical engineering at the Massachusetts Institute of Technology. His research interests in- clude source coding theory, sampling, quantization, and informa-tion gathering and dispersal in networks. ... systems, information theory,estimation, and control theory.Vivek K Goyal received the B.S. degree in mathematics and the B.S.E. degree in elec-trical engineering (both with highest dis-tinction) ... dictionary element being an independent random vec-tor and on the dictionary being large. The results are expec-tations over both the noise d and the dictionary itself. In ad-dition to analyzing...

Báo cáo hóa học: "An Analysis of ISAR Image Distortion Based on the Phase Modulation Effect" pptx

... distortion.As demonstrated in the analysis in this section and in Section 5, it is the temporal variation in the rotation (i.e.,ω(t)), not the amplitude of the rotation, that introduces the severe ... approximation. The trun-cation of the Taylor series is valid only in the limiting casewhere the ﬂuctuation in the time-varying motion of the tar-get is not very signiﬁcant during the imaging per ... directions. Fromthese two graphs, we can make a physical linkage, connecting the distortion introduced in the ISAR image to a time mod-ulation eﬀect in the phase of the scatterer. This illustrationprovides...

Báo cáo hóa học: "Editorial Synchronization in Wireless Communications" docx

... solution to obtain slot synchronization, asolution that is based on synchronization in biologicalsystems. In this method, two synchronization words are usedto synchronize: one transmitted by the ... obtained by using the informationfrom the downlink signal, a low-complexity compensationtechnique for ﬁne carrier frequency synchronization in the uplink is proposed.Many of the algorithms in ... transmitted during the data segment, but a preamblecontaining pilots is added to derive initial estimates.As a last item, we consider timing synchronization in networks. When the timing in the diﬀerent...

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