Báo cáo hóa học: " Research Article Burst Format Design for Optimum Joint Estimation of Doppler-Shift and Doppler-Rate in Packet Satellite Communications" ppt

... pages doi:10.1155/2007/29086 Research Article Burst Format Design for Optimum Joint Estimation of Doppler-Shift and Doppler-Rate in Packet Satellite Communications Luca Giugno, 1 Francesca Zanier, 2 and Marco Luise 2 1 Wiser ... a low-complexity DA Doppler-shift estimator for the optimal 2P format. Extensions of this algorithm for joint carrier pha...

Ngày tải lên: 22/06/2014, 19:20

... denotes the set of all fixed points of P i (i = 1,2, ,m). Thus the problem of image recovery in the setting of Hilbert spaces is a common fixed point problem for a family of nonexpansive mappings. A well-known ... Point Theory and Applications [23] S. Reich, “A weak convergence theorem for the alternating method with Bregman distances,” in Theory and Applications of Nonl...

Ngày tải lên: 22/06/2014, 22:20

... events: deformation, impact, scraping, and rolling (for solids); explosion, whoosh and wind (for g a s); drip, pour, splash, and ripple (for liquids). We adopt this taxonomy in the present research, and ... database and a method for segmenting field recordings to assist sound design. 1. Introduction Sound designers have traditionally made extensive use of recordings for...

Ngày tải lên: 21/06/2014, 08:20

... Theorems 3.5 and 3.6 extend and improve Theorems 3. 3and3 .4 of Chidume- Shahzad 17 in the following senses: i from real uniformly smooth and uniformly convex Banach spaces to real uniformly convex ... to a finite family of strict pseudocontractions by replacing the convex combination of these mappings in the iteration under suitable conditions. The construction of fixed p...

Ngày tải lên: 21/06/2014, 11:20

... Chapter of the Association for Computational Linguistics, Pittburgh, Pa, USA, 2001. [23] R. Mandala, T. Tokunaga, and H. Tanaka, “The use of wordnet in information retrieval,” in Proceedings of the ... remaining tags are returned in random order. This is how the approach of training a classifier for each tag, for example, [7–9] would behave for out of vocabulary tags....

Ngày tải lên: 21/06/2014, 11:20

... Therefore, one of the most challenging issues in designing PAs is the linearity requirement. The linearization techniques improve the linearity of PAs, and among them digital predistortion has gained ... linearization performance of the MOP PD in the presence of IQ imbalance in terms of convergence behavior, AM/AM, and AM/PM curves and EVM and ACPR performances. The pe...

Ngày tải lên: 21/06/2014, 20:20

... detection and decoding techniques for Q-OFDMA and analyze the performance in Section 3. Finally, we demonstrate the performance of Q-OFDMA systems using various detection techniques by simulations in ... on the received signal y and the a priori information of ˘ x, that is, E( ˘ x)andCov( ˘ x, ˘ x). After passing through a demapping module, the extrinsic information for eac...

Ngày tải lên: 21/06/2014, 23:20

... mappings, by Lemma 1.5,itis a finite family of uniformly Lipschitzian mappings. Hence, the set F of common fixed points of {S n } and {T n } is closed and so x ∗ ∈ F. This completes the proof of ... generalization and improvement of the corresponding results in Osilike et al. 8 and Liu 2  which is also an improvement of the corresponding results in 3, 5–7. The foll...

Ngày tải lên: 21/06/2014, 23:20

... interframe interference (IFI) and no intersymbol interference (ISI). The whole training sequence is assumed to be included in the observation window without knowing the exact starting point. Due ... reference. The position of the highest peak for each curve in Figure 5 indicates the timing information and the area around this highest peak is the most interesting part, since it sho...

Ngày tải lên: 21/06/2014, 23:20

... pdf of the soft output of the receiver and then calculate the BER by computing the appropriate integral given by (10). However, in a practical situation, the nature of the pdf of the observed random ... classification and speech coding. In this paper, we will focus on the use of the Kernel method and its use for estimating the BER. EURASIP Journal on Wireless Communicatio...

Ngày tải lên: 21/06/2014, 23:20