Báo cáo hóa học: " Research Article Inverse Filtering for Speech Dereverberation Less Sensitive to Noise and Room Transfer Function Fluctuations" potx

... Processing Volume 2007, Article ID 34013, 12 pages doi:10.1155/2007/34013 Research Article Inverse Filtering for Speech Dereverberation Less Sensitive to Noise and Room Transfer Function Fluc tuations Tak ... guar- anteed, and the performance is degraded because the RTFs fluctuate over time and the inverse filter fails to remove the effectofthe RTFs. The...

Ngày tải lên: 22/06/2014, 20:20

... vec(A)returnsA transformed into a column vector with one column stacked onto the next. A, A T and A −1 stand for the Euclidian norm, the transpose and the inverse of matrix A,respectively. 2. System ... Introduction Ultra-wideband (UWB) impulse radio communications, as a promising candidate for location-aware indoor communica- tions, wireless sensor networks (WSN) and wireless p...

Ngày tải lên: 21/06/2014, 05:20

... Hilbert space H,andlet f : C × C → be a bifunction satisfying (A1)–(A4). Let A be an α -inverse- strongly monotone mapping of C into H,andletS be a nonexpansive mapping of C into itself such that ... method for nonexpansive mappings and monotone mappings,” Journal of Optimization Theory and Applications, vol. 128, no. 1, pp. 191–201, 2006. 32 K. Aoyama, Y. Kimura, W. Takahashi, and...

Ngày tải lên: 21/06/2014, 07:20

... estimator outperforms the SSLS channel estimator. However, for the small values of L, the performances of both estimators are similar. Practically, even small values of L lead to enough accuracy for ... leads to decreasing the normalized TMSE of the SSLS and MMSE channel estimators. At high Rice factors, the performances of the proposed estimators are analogous particularly at low S...

Ngày tải lên: 21/06/2014, 11:20

... other hand, with the DF protocol, the a relay decodes the signal and remodulates the decoded information before transmitting to the next node. For these two protocols, outage and error performance ... main categories: amplify -and- forward (AF) and decode -and- forward (DF). In AF protocol, a relay just amplifies the sig nal received from the source and retransmits it to the dest...

Ngày tải lên: 21/06/2014, 17:20

... ssthresh and cwnd for n duplicate ACKs or halves ssthresh and cwnd for a timeout. To calculate the jitter, the TCP sender has to store the sending time of each segment and the receiver has to report ... in wireless networks. In this paper, we refer to these sort of schemes to improve the TCP performance against wireless losses as wireless TCP as a whole. Wireless TCP can b...

Ngày tải lên: 21/06/2014, 20:20

... continuous function from C0,T : E i N  n  to itself. By Definitions 2.3 and 2.4, some properties of d L , and inequalities 3.4 and 3.5 , we have the following inequalities. For any x, ... automorphic fuzzy-number-valued functions,” Journal of Fuzzy Mathematics, vol. 13, no. 1, pp. 185–208, 2005. 9 G. Wang, Y. Li, and C. Wen, “On fuzzy n-cell numbers and n-dimension...

Ngày tải lên: 21/06/2014, 20:20

... one, and of course for the uplink and the downlink. Therefore the formulation explained previously, and the value R p , has to be applied for each service i and each direction (Uplink (UL) and ... equipment for each city, town, rural area, highway, road, and so on. Based on this, the mobile operator will have enough information to make the decision about built or buy, a...

Ngày tải lên: 21/06/2014, 23:20

... theorems for non-local operators,” Journal of Functional Analysis, vol. 216, no. 2, pp. 455–490, 2004. [13] A. E. Kogoj and E. Lanconelli, “Link of groups and applications to PDE’s,” to appear ... Problems Volume 2007, Article ID 48232, 16 pages doi:10.1155/2007/48232 Research Article Liouville Theorems for a Class of Linear Second-Order Operators with Nonnegative Characteri...

Ngày tải lên: 22/06/2014, 19:20

... Surveys and Monographs, Amer ican Mathematical Society, Rhode Island, 1997. [10] M. Biroli and S. Marchi, “Oscillation estimates relative to p-homogeneous forms and Kato mea- sures data,” to appear ... cap(E;O)foraset E ⊂ E ⊂ O with respect to the open set O. Moreover the sets of zero capacity are the same with respect to O and to X. 2 Boundary Value Problems forms essential...

Ngày tải lên: 22/06/2014, 22:20