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In this paper, high sampling rate oscilloscope is used for measuring the carrier waveform distortion of CW(Continuous Waves) and modulation signal that passed RF PA(Power Amplifier). The comparison indicates the relationship between them. By generating power sweep CW input to PA, relative output waveform in time domain is captured. Then time domain model of PA output is got when input is quadrature...
With the rapid development of RFID technologies, RFID has been introduced into applications such as supply chain management, inventory control, sampling inspection, 3-D positioning and object tracking. Usually, the reader accesses all the tags in its interrogation region while some applications may only need to identify the tags in a specified area which is smaller than the reader's interrogation...
As a novel network architecture, Information-Centric Networking(ICN) has a good performance in security, mobility and scalability. Although in-network cache used in ICN can effectively solve the problem of network congestion. Meanwhile, it also brings a lot of challenges such as copyright protection. How to prevent unauthorized user access to the large-sized contents of the route has become the focus...
In Named Data Networking (NDN), a content can be replicated in multiple network node. Thus, more than one interface can be selected for the same content in a node, and it is very important to choose the interface to forward request packet for better network performance. In this paper, we introduce a MDP-based forwarding strategy which is under the consideration of network problem and location of content...
In this paper, we consider generalized function projective lag synchronization of time-delay systems using adaptive control methods, and system parameters are uncertain. By means of the Lyapunov stability theory, an adaptive controller and parameter update rule are designed for achieving generalized function projective lag synchronization between two time-delay systems and estimating all the unknown...
In recent years, rapid growth of the wind power all around the world highlights the requirement of developing accurate wind power forecasting method. Since the wind power generation mainly relies on wind speed and wind turbine condition, a novel wind power forecasting strategy considering wind turbine condition is proposed in this paper. The proposed strategy which can predict several-hours-ahead...
In this paper two multiple signal representation transceiver design schemes called selected mapping schemes (SLM) and partial transmit sequence (PTS) are utilized for orthogonal frequency division multiplexing (OFDM) in linear time-varying (LTV) channels. In order to reduce inter-carrier interference (ICI) due to the time-varying of channel, we introduce the peak interference-to-carrier-ratio (PICR)...
We propose to apply n dimensional discrete Fourier transform (DFT) to a fitness landscape, search an elite individual using obtained principal frequency component and accelerate evolutionary computation (EC) search. a comparative evaluation with our previous works is conducted using eight benchmark functions. the evaluation shows that our proposed approach can obtain the accurate fitness landscape...
To improve website usability, the information architecture of library website must be designed to meet the real needs from users. Based on user-centered design method, analyze and research users to get the user's real needs. Create personas and do qualitative analysis to determine the features and functions of library website. Classify the information architecture of library website by card sorting...
This paper presents an optimized architecture of shared memory controller in packet processing multi-processor system on chip (MPSoC). The rotation priority algorithm in arbitration mechanism is ameliorated so that fairness of the memory access response and continuity of read/write commands are guaranteed. A `ping-pong' structure is adopted in SRAM interface logic which optimizes the memory data throughput...
In this paper an bus architecture combining crossbar switching with split transaction feature is presented for multiprocessor system on chip (MPSoC) in the packet processing application. The high throughput is achieved with crossbar bus topology and low bus latency is finished by split transaction buses which separate address bus from data one. Experimental results show that performance of the proposed...
In order to cultivate application-oriented and high-skilled talents in the popular education phase, it is essential for full development of student's practice, design and innovation abilities by strengthening the experiment teaching. CDIO advocates “learning by doing” and “project-based education and learning”. CDIO theory is introduced in experiment teaching for computer major, and experiment teaching...
The need for managing distributed systems and providing seamless service is prominent in E-Government. SOA can potentially address those needs and provide software architecture for the interaction of existing and new distributed systems in E-Government. Through analyzing the characteristics of SOA and Web Services, Web Services is considered as the most appropriate technology for implementing SOA...
Due to the nonlinear and nonstationary of river water turbidity, a novel hybrid forecasting model based on phase space reconstruction and support vector regression (PSR-SVR) is proposed. Firstly, the embedding dimension is chosen by using the false nearest neighbor method, and the time delay is obtained by the average mutual information. The phase space is reconstructed from the time series with the...
Web is a specific interactive system which is in a wide range of application areas, but there are with different degrees of usability problems. Therefore, it is necessary to provide a design method for Web usability. Based on the theory of user centered design (UCD) and usability engineering principles, Web usability design includes three aspects: user research, Web design, and Web evaluation. User...
This paper, based on the forty-three indicators of animal physiology welfare, including environmental welfare, health welfare, mental welfare and behavioral welfare , totally five aspects as the subject, established the evaluation model of animal welfare management in zoos, and used triangular fuzzy number analytic hierarchy process to draw the weights of various evaluation factors, the results indicates...
The segmented blood vessel in retinal images is an important indicator in medical treatment. In 2007, Ricci and Perfetti proposed a simple and efficient blood vessel segmentation method based on line operator. However, this scheme makes some false segmentation when it is used to process the pixels which are close to a thick blood vessel. To overcome the above problem, a novel retinal blood vessel...
Otsupsilas thresholding method (OTM) is one of the most commonly used thresholding methods. Unfortunately, the threshold obtained by OTM is biased in favor of the class, whose standard deviation or quantity of data is larger. Besides, one may adopt distinct thresholds in different applications for a same data set. Accordingly, this paper proposes an adaptable threshold decision method (ATDM) to provide...
In the thesis, the scheme of the system which incorporates the transportation dispatching system with the interlocking part was designed for the industrial railway. The modeling method based on the technique of the workflow was studied to realize the automation of the working process, the general workflow net (GWFN) was defined and expanded based on the standard workflow model to model the complex...
Demosaicking interpolation and digital zooming are two significant techniques for the quality of enlarged full-color image in resource-constrained single chip devices. This paper proposes an effective demosaicking and zooming algorithm by referencing to the neighboring information. In addition to considering one direction neighboring information to estimate the missing value, the EDZ algorithm develops...
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