based on adaptive accumulation ratio

... gas operations, ocean bottom monitoring stations, remote mine hunting and underwater structure inspections have driven the need for underwater wireless communications Sound transmission is the ... that is commonly used in radio communications [15, pp 222-223] The model Page-2 presented in this thesis is based on [10] and its time variability effect is based on [6, 14, 15] One of the earliest ... give better Doppler resolutions Figure 2-13 clearly shows that the Doppler resolution is dependent on the time duration of the BPSK modulated m-sequence As this duration increases (from top to...

Ngày tải lên: 26/11/2015, 13:03

... 5.3 Simulation Results 65 5.3.1 Asynchronous Channel 65 5.3.2 Rayleigh Fading Channel 69 5.4 Concluding Remarks CHAPTER CONCLUSIONS AND FUTURE WORK 71 72 6.1 Conclusions and Contributions 72 6.2 ... normally provided to the conventional detector and performs better than the conventional one Another one is an adaptive decision feedback PIC (ADFPIC), which applies a decision feedback scheme in ... in varied conditions, such as perfect power control, nearfar situation and multi-cell environment In addition, its BER performance is compared with the other three detectors: conventional detector,...

Ngày tải lên: 28/11/2015, 13:26

... simulated in similar situations The improvements of ANNAI -based heading control system compared to the conventional BP one are discussed Secondly, an adaptive ANNAI -based track control system for ship ... ANNAI -based track control system with the influence of disturbances 55 Fig 5.1 Configuration of automatic berthing control system 59 Fig 5.2 NNC1 configuration 60 Fig 5.3 NNC2 configuration ... for dynamic positioning (DP) control The ANNAI controllers are used in parallel with a conventional proportional-derivative (PD) controller to adaptively compensate for the environmental effects...

Ngày tải lên: 25/04/2016, 18:44

... implementation with adaptive course generation system to generate adaptive course for each learner’s based on learner’s knowledge and learner’s learning goals represents in section Finally, conclusion ... direct guidance, adaptive sorting of links, adaptive hiding of links, adaptive annotation of links, map adaptation [1] Therefore, many adaptive applications in education which based on techniques ... focus on adaptation component for learning activities with adaptive activity annotation About adaptive content generation, we presented in [5] For adaptive activity annotation, we use different...

Ngày tải lên: 22/03/2014, 09:20

... babble noise conditions The experimental results show that the VAD based on MP coefficients outperforms the ones based on the DFT in all of the testing conditions, and it can be concluded that ... detection based on complex exponential atomic decomposition and likelihood ratio test, in 20th Int Conf Pattern Recognition, ICPR 2010, Istanbul, Turkey, pp 89–92, 2010 22 RC Reininger, JD Gibson, ... atomic decomposition based on conjugate subspace MP In this section, we will briefly review the process of signal decomposition by using the conjugate subspace MP [19,20] The conjugate subspace...

Ngày tải lên: 18/06/2014, 22:20

... babble noise conditions The experimental results show that the VAD based on MP coefficients outperforms the ones based on the DFT in all of the testing conditions, and it can be concluded that ... detection based on complex exponential atomic decomposition and likelihood ratio test, in 20th Int Conf Pattern Recognition, ICPR 2010, Istanbul, Turkey, pp 89–92, 2010 22 RC Reininger, JD Gibson, ... atomic decomposition based on conjugate subspace MP In this section, we will briefly review the process of signal decomposition by using the conjugate subspace MP [19,20] The conjugate subspace...

Ngày tải lên: 20/06/2014, 04:20

... babble noise conditions The experimental results show that the VAD based on MP coefficients outperforms the ones based on the DFT in all of the testing conditions, and it can be concluded that ... most dominant component, then subtracting its contribution from the signal and iterating the estimation on the residual By subtracting a component at each iteration, the next component selected ... detection based on complex exponential atomic decomposition and likelihood ratio test 20th Int Conf Pattern Recognition, ICPR 2010 (Istanbul, Turkey, 2010), pp 89–92 RC Reininger, JD Gibson, Distributions...

Ngày tải lên: 20/06/2014, 21:20

... best channel condition will be chosen first Then, for other connections, the one with highest priority level among the ones with best channel condition is chosen The selected connection can adapt ... the average resource consumption for AC, while our approach considers one more restriction: the practical symbol consumption If only for this reason, more new/handoff connections should be accepted ... nrtPS connections, because approach1 has no QoS consideration, approach2 causes the real-time connections preempting too much bandwidth for non-real-time connections, and approach3 does not consider...

Ngày tải lên: 21/06/2014, 00:20

... horizontal and vertical directions To carry out more accurate interpolation on these regions, region adaptive interpolation scheme which estimates the edge direction adaptive to the region types ... color Edge Region directional difference direction classification interpolation plane estimation Edge region EDT = {Ver, Hor, non} Spatial correlation Edge-pattern region Flat region Bayer color ... direction is not determined, the region is considered as a nonsharp edge region and these regions are investigated again in the following region classification step: Classification 3.1.2 Region Classification:...

Ngày tải lên: 21/06/2014, 08:20

... The CMWCF application in gearbox vibration: (a) the gearbox vibration signal, (b) the spectrum of the gearbox vibration, (c) the correlation value of CF, (d) the correlation value of CMWCF, and ... The CMWCF application in gearbox vibration: (a) the gearbox vibration signal, (b) the spectrum of the gearbox vibration, (c) the correlation value of CF, (d) the correlation value of CMWCF, and ... The CMWCF application in gearbox vibration: (a) the gearbox vibration signal, (b) the spectrum of the gearbox vibration, (c) the correlation value of CF, (d) the correlation value of CMWCF, and...

Ngày tải lên: 21/06/2014, 08:20

... International Symposium on Independent Component Analysis and Blind Signal Separation (ICA ’03), pp 125–130, 2003 [32] Y Li, P W Tse, and X Wang, “Recovery of vibration signal based on a super-exponential ... mentioned methods which rely on blind equalization, none or only heuristic values are given regarding the choice of an appropriate threshold Thirdly, the mentioned methods are nonadaptive Once ... separation of sparse overcomplete mixtures and application to neural recordings,” in Proceedings of the 8th International Conference on Independent Component Analysis and Signal Separation, vol...

Ngày tải lên: 21/06/2014, 09:20

... evolution usually starts with some randomly selected genes as the first generation All genes in a generation form a population Each individual in the population is called chromosome, which corresponds ... optimization problem GA is implemented as a computer simulation in which a population of abstract representations of candidate solutions to an optimization problem evolves toward better solutions The ... operators: selection, crossover, and mutation [13] The process is repeated until a predefined condition is satisfied Once we have the genetic representation and the fitness function defined, pseudocode...

Ngày tải lên: 21/06/2014, 16:20

... conservation and reducing communication conflict, we also assume that the same data packet using only one route to send Considering the average rate of data reception by single hop transmission, ... (6) EURASIP Journal on Wireless Communications and Networking Energy consumption (mJ) 0.25 critical condition of (7) and introduce the power control algorithm presented by Kwon H [13] The reliability ... Energy Prediction Mechanism Transmit data Receive data Figure 3: Energy consumption with different transmit power To have an intuitive expression on energy consumption of data transmission, let f =...

Ngày tải lên: 21/06/2014, 17:20

... used in conjunction with Pitch Determination Algorithms (PDA) in which the V/UV decision is made as part of the pitch determination problem, whereas the second includes solutions based on the value ... silence/background noise, stationary unvoiced, nonstationary unvoiced, onset, nonstationary voiced, or stationary voiced A multilevel approach is used for the classification decision, starting with a VAD, ... robust V/UV detection based on adaptive noise classification and SNR estimation In this paper we present an extended version of this work Specifically, the performance of the classification system is...

Ngày tải lên: 21/06/2014, 20:20

... probability as a function of γ0 for the user i = (exponential correlation model) 10−1 5.1 Exponential Correlation Model In this example, the amplitudes of the spatial correlations among the elements ... Allerton Conference on Communication, Control, and Computing, pp 987–996, Monticello, Ill, USA, September 1999 [4] G J Foschini, “Layered space-time architecture for wireless communication in ... contrast to [7], we consider that the BS has only the knowledge of the second-order statistics such as the covariance matrix of the downlink userchannels The motivation behind this assumption...

Ngày tải lên: 21/06/2014, 22:20

... interpolation operation is performed to recover it Hence, the interpolation is established by using a polynomial curve fitting that is based on linear model estimator The contributions of this ... Section outlines the characteristics of the channel model considered along with a discussion that is related to samplespaced and fractional-spaced channel impulse response concerns In Section 3, ... interpolation along with the discussion regarding the selection of its order Section introduces simulation setups for various scenarios and presents corresponding performance results Finally, in Section...

Ngày tải lên: 21/06/2014, 22:20

... without CSI It is shown that the mean number of iterations is a monotonically decreasing function of the channel conditions The discrete EURASIP Journal on Image and Video Processing 200 100 20 10 20 ... “Good error-correcting codes based on very sparse matrices,” IEEE Transactions on Information Theory, vol 45, no 2, pp 399–431, 1999 [15] G Lechner and J Sayir, On the convergence of log-likelihood ... iterations 18 16 14 12 70 200 10 100 0 10 20 30 40 50 60 6.4 70 6.6 6.8 200 100 7.8 Mean CSI 10 20 30 40 50 Number of iterations 60 22 Median no CSI Figure 5: Mean and median number of iterations...

Ngày tải lên: 22/06/2014, 22:20

... additional traffic congestion during transition periods corresponding to the latency for pruning a branch of the multicast tree RLC [12] is a TCP-compatible version of RLM, based on the generation ... research on multicast rate and congestion control Section sets the main lines of SARC, our new hybrid sender/receiver driven rate control based on a clustering algorithm The protocol functions to ... classification A receiver that observes temporal variation may change its class during time In a stationary context, the classification would converge to a stable distribution This stationary distribution...

Ngày tải lên: 23/06/2014, 01:20

... stationary increments The time-to-response is assumed to follow a general distribution which can depend on both the treatment allocation and the response observed The central limit theorem on Yn ... polychotomous responses, continuous outcomes are also very common, such as blood pressure Rosenberger (1993) developed a biased coin randomization scheme for continuous outcomes based on a linear rank ... treatment’s failure Thus, it is reasonable and necessary to make some modifications on the generating matrices In the 1990’s, discussions about adaptive design concentrated on the use of different kinds...

Ngày tải lên: 11/09/2015, 14:32

... forces requires the formulation of controllers directly in operational space Many works have been done on the formulation of controllers in operational space based on the availability of actual ... signifies application of free motion (motion control) along the corresponding axis and “0” for constraint motion (force control) along the corresponding axis 16 Eq 2.21 was derived to consistently match ... 5.1 58 Adaptive friction identification and compensation - Maximum tracking errors with adaptive friction compensation 5.2 58 80 Adaptive friction identification and compensation -...

Ngày tải lên: 14/09/2015, 08:49