Báo cáo hóa học: " Research Article A Comprehensive Evaluation of Indoor Ranging Using Ultra-Wideband Technology" pptx

... Corporation EURASIP Journal on Wireless Communications and Networking Volume 2007, Article ID 86031, 10 pages doi:10.1155/2007/86031 Research Article A Comprehensive Evaluation of Indoor Ranging Using ... 4dB Rx-branch Tx-antenna Rx-antenna LNA Port 2 Network analyzer agilent PNA E880 3A Coax cable Port 1 Pre-amp. PA 1–12 GHz Conical monopole G = 0dBi Tx-branch (a) Block...

Ngày tải lên: 22/06/2014, 19:20

... the Aurora DSR group [29, 30, 35]. Description of Aurora 2 and Aurora 3 databases and experiments Aurora 2: The speech data in Aurora 2 database [29]isa derivative of the TI-DIGITS database. ... per- formance of the AFE procedure using Aurora 2 and Aurora 3 databases is given in [6]. The direct comparison about per- formances of the WPDAM and AFE on the Aurora 3 database canbeseenfr...

Ngày tải lên: 22/06/2014, 20:20

... nonlinear differential equations,” Journal of Mathematical Analysis and Applications, vol. 124, no. 2, pp. 339–380, 1987. 40 E. K. Ifantis, “Global analytic solutions of the radial nonlinear wave ... Diff erence Equations and Applications, vol. 9, no. 10, pp. 969–987, 2003. 30 Y. Song and C. T. H. Baker, “Linearized stability analysis of discrete Volterra equations,” Journal of Math...

Ngày tải lên: 21/06/2014, 11:20

... MB-UWB OFDM signal is organized in packets that are sequentially composed of preamble, header, and payload data symbols. The payload data can be transmitted at different data rates. The data rate values ... rates of 200 Mbps and below and a dual carrier modulation (DCM) scheme that is used for higher data rate values. The header and the payload data symbols are generated by using an OF...

Ngày tải lên: 21/06/2014, 11:20

... channel bandwidth, and ϕ is the noise figure of the MS. In order to make N bg mathematically tractable, we introduce an auxiliary Gaussian RV X n with zero mean and zero variance so that N bg can betreatedaslog-normalRVwithparametersofμ n = ln(kTWϕ)andσ n = ... N bg can betreatedaslog-normalRVwithparametersofμ n = ln(kTWϕ)andσ n = 0. Note that N bg has a constant value, and this is account...

Ngày tải lên: 21/06/2014, 18:20

... FLAOA Measurement Model. AOA location systems measure the incident angle at an array antenna. Assuming that two antennas are horizontally separated by a distance d to form an array antenna, as ... 802.15. 4a standard for low rate WPAN [14]. It is also assumed that angle measurements are obtained using IR-UWB system with linear array antennas for RLAOA. For FLAOA, an “L” shape planar arra...

Ngày tải lên: 21/06/2014, 20:20

... theorems of solutions for the system of nonlinear variational inequalities. As generalizations of system of variational inequalities, Agarwal et al. 18 introduced a system of generalized nonlinear ... of variational inequality problems, were introduced and studied. Pang 1, Cohen and Chaplais 2, Bianchi 3, and Ansari and Yao 4 considered a system of scalar variation...

Ngày tải lên: 21/06/2014, 20:20

... Integral means inequalities for fractional derivative We will make use of the following definitions of fractional derivatives by Owa 4,andSrivas- tava and Owa 5. Definition 4.1. The fractional ... 1925. Hindawi Publishing Corporation Journal of Inequalities and Applications Volume 2008, Article ID 452057, 10 pages doi:10.1155/2008/452057 Research Article A New Subclass of An...

Ngày tải lên: 21/06/2014, 22:20

... take to achieve optimal throughput. We calculate the overhead of schedule packets in terms of total schedule packet generated and total data packets delivered to sink. The overheads of maintaining ... Each node maintains data and schedule intervals, therefore, the operation of MCCP can be subdivided into schedule interval and data interval operations. Each schedule interval is followe...

Ngày tải lên: 21/06/2014, 23:20

... 2008, Article ID 717614, 14 pages doi:10.1155/2008/717614 Research Article A Refinement of Jensen’s Inequality for a Class of Increasing and Concave Functions Ye Xia Department of Computer and Information ... Partial Orderings, and Statistical Applications, vol. 187 of Mathematics in Science and Engineering, Academic Press, Boston, Mass, USA, 1992. 3 J B. Hiriart-Urruty and...

Ngày tải lên: 22/06/2014, 03:20