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In this paper, the state extending and filtering robust control (SEFERC) is proposed and investigated. In the SEFERC, the uncertain nonlinear part of the MIMO is extend to the new state parameter and estimated by the nonlinear tracking filter. With the estimated value, by the direct feedback linearization (DFL) method and H∞ control method, the nonlinear system can be converted to the linear system...
In this paper, we propose a general framework for multi-accent speech recognition that combines Multi-level Adaptive Network (MLAN) and automatic model selection system based on accent classification. This framework solves the problem of domain mismatch between standard Mandarin and accent data and makes full use of limited accent data. The effectiveness of the proposed method was evaluated on two...
Accented speech recognition is more challenging than standard speech recognition due to acoustic and linguistic mismatch between standard and accented data. In this paper, we propose a new framework combining Tandem system to improve the discriminative ability of acoustic features with Multi-level Adaptive Network (MLAN) to incorporate information from standard Mandarin corpus and also to solve the...
The growth of network scale and business diversification makes network management complexity increase dramatically, and the network running status is difficult to control. With the help of network management system that can effectively manage the entire network, so that the network is stable, secure, efficient working. But the prominent problems in network management system is that network equipment...
In order to fulfill the mission, the search and rescue system must be able to locate the victims quickly and reliably. Current search and rescue approaches generally rely on either teleportation robots, or teams of wireless robots. The advent of Wireless Sensor Network (WSN) technologies is paving the way for a panoply of new ubiquitous computing applications. We present an approach utilizing Robotic...
Different types of services have different characteristics in the aspects of importance, bandwidth demand, time-sensitive and so on. User service requirements on the abilities of controllability and manageability of network become higher and higher. The research on transmission control is an important part of manageable and controllable network study. A kind of transmission control technology based...
In this paper, the importance and necessary of mixing play audio files data is analyzed firstly, and then the principle and characters of mixing play audio data using DirectSound technology are introduced. Because mixing play audio data using DirectSound technology has the shortcoming of designing mixing play control interface very difficult, a new method of overlaying the Windows Media Player controllers...
In this article, the functions of the LAN-based real-time audio data recording and monitoring system is analyzed firstly, and then the working principle and the methods of how to realize real-time radio data monitoring, recording the audio data to file and mix replaying is described in detail. The solution put forward in this article can be used in many fields such as airport, harbor, police, security...
The traditional work model of HTTP is a pull technology. This model is characterized by client making request and server-side response. But In some cases this pull model can not meet the requirements of data transferring between client and server, such as monitoring and controlling system, instant messaging system. These systems need to implement a real-time data transfer mode, which is a push technology...
In order to monitor the leakage of hazardous chemicals and guarantee the safety of people in hazardous areas, we developed RESRS (Robot Emergency Search and Rescue System). RESRS integrated technologies such as mobile robot and WSN (Wireless Sensor Network). The mobile robots in the system act as mobile nodes of WSN. We describe the components of the generic RESRS's architecture in detail. A small-scale...
CAESRS (Chemical Accident Emergency Search and Rescue System) was developed for the use of monitoring the leakage of hazardous chemicals and guaranteeing the safety of people in hazardous areas. Technologies such as WSN (wireless sensor network) and mobile robot need to be integrated to build up CAESRS. We describe the components of the generic CAESRS's architecture in detail. A small-scale demonstration...
In this paper we provide a brief introduction to the CAESRS (chemical accident emergency search and rescue system) project which is oriented to monitoring the leakage of hazardous chemicals and to guaranteeing the safety of people in hazardous areas. Technologies such as WSN (wireless sensor network) and mobile robot need to be integrated to build up CAESRS. We propose a system architecture that provides...
In this paper, we firstly introduce and analyze the problems in existing objective weighting methods in MADM. Then we propose some ideas of solutions for those questions. Finally, we give a feasible solution for determining of weights, and verify its feasibility by a data experiment.
As a classical algorithm of association rules mining, Apriori algorithm has two bottlenecks: the large number of candidate itemsets and the poor efficiency of counting support. A new association rules mining algorithm based on vector is proposed, which can reduce the number of candidate frequent itemsets, improve efficiency of pruning operation and count support quickly using vector inner product...
Because the traditional network management model based on Web and CORBA which adopts pull technology can not obtain info actively and in time, this paper put forward a new Web services model based on CORBA and push technology in network management system, which combines information push technology with CORBA notification service. This model changes the passive status of server and implements network...
This paper proposes a new congestion control algorithm (MFACC) designed on the basic of FACC. MFACC applies different processing methods to different kinds of operational data (such as video data, audio data, file data and message data) because of the different characteristics and request on network resources, introduces the active detection and the passive indication mechanism, and adopts the cooperation...
This paper proposes a new congestion control algorithm modified forward active network congestion control algorithm(MFACC), which is based on operational data and designed on the basic of FACC. MFACC applies different processing methods to different kinds of operational data (such as video data, audio data, file data and message data) because of the different characteristics and requests on network...
Regular wireless sensor networks gain more and more attention because they can help to save energy and achieve longer network lifetime. In this paper, the popular hexagonal sensor network is focused and some new energy efficient routing algorithms are proposed based on a new addressing scheme. Performance of the new algorithms is compared by simulation. The results show the tree based routing algorithm...
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