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Upon the completion of the single-layer H.265/HEVC, scalable extensions of the H.265/HEVC standard, called Scalable High Efficiency Video Coding (SHVC), are currently under development. Compared to the simulcast solution that simply compresses each layer separately, SHVC offers higher coding efficiency by means of inter-layer prediction which is implemented by inserting inter-layer reference (ILR)...
The normal-inverse model arises as a normal variance-mean mixture with an inverse Gaussian mixing model. The resulting model, it is very complicated to obtain the influence measures based on the tradition method. In the present paper, several diagnostic measures for outlier data mining are obtained based on the conditional expectation of the complete-data log-likelihood function based on the EM algorithm...
Generalized Hammerstein models can be used to accurately mimic the dynamic nonlinear behaviors of RF power amplifiers or transmitters. A high efficient parameter extraction algorithm for the generalized Hammerstein model is an essential problem for implementing the nonlinear model in a cheap microprocessor. In this paper, a modified systolic array based QRD-RLS algorithm, which is suitable for implementing...
This paper presents a design approach for high efficiency RF power amplifiers with dynamic biases for TDSCDMA systems. The design principle of a PA with dynamic bias is described in detail. The improvement of the power-added efficiency (PAE) is achieved by the drain bias control technique according to the variation of the input power. The simulation results illustrated that this PA can achieve high...
This paper discusses the influence of phase and gain imbalances between two branches of LINC transmitter on the recombined signals. Experiments are carried out on a model of LINC transmitter using a 3 dB Wilkinson RF combiner which is designed with micro-strip line. Then the phase and gain errors that can be tolerated in the LINC transmitter with high efficiency and good linearity are discussed. The...
This paper presents a design approach of Doherty amplifier, which is based on optimizing the average power efficiency instead of peak power efficiency by adjusting the offset lines located in the branches of the carrier and the peak amplifier. The back-off point of the Doherty amplifier, which can be shifted by tuning the offset lines, should be optimized according to the power probability distribution...
Variance handling plays a key role in the computerized clinical pathway (CP) management enabling high-quality and efficient patient care processes and healthcare services. Based on the analyses of the classifications and handling characteristics of variances, this paper proposes a hybrid variance handling approach combing generalized fuzzy ECA (GFECA) rules and a typed fuzzy Petri net extended by...
Aimed at the variations of CP, combined modular modelling method and structure changing mechanisms, a modular colored Petri net with changeable structure (MCPN-CS) workflow modelling method is proposed. A new type of place, namely signal place, is added into the MCPN-CS to respond the variation states of CP. Meanwhile, a hybrid variation monitoring and an analyzing and reasoning controller are designed...
Systolic array is a hardware implementation of fast speed signal and data process using parallel pipeline method. The first systolic implement of QRD-RLS algorithm presented by Gentleman and Kung in 1981, is only suitable to solve the linear problem. In this paper, we will present how to use modified systolic array based QRD-RLS algorithm to identify the model parameters of the memory polynomial nonlinear...
Large amount of experts are key asset that universities hold. In order to increase people's awareness of experts and foster collaborative opportunities, it is necessary to build an expertise repository, which enables campus and external users to identify suitable experts and their expertise. This paper proposes a methodology for constructing semantic repository of academic experts, a semantic Web...
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