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Great efforts have taken on researches on ultrasonic waves. These efforts developed different techniques on ultrasonic wireless communication. To evaluate the performance of these techniques a simulation platform is needed to implement them and then to analyze and compare their performance. In this paper a novel design and implementation of a general purpose simulation platform in dynamic environment...
This paper provides and describes a method of on-vehicle detection system of hybrid electric vehicle (HEV). Some functions like data detection, analysis, process and the control of hybrid electric model can be implemented based on LCD and touch screen interface. The designed system is not limited on normal processes of vehicle parameters such as speed, miles, rotation speed of engine, voltage and...
A grating interferometer may be applied to measure the distance of equipment moving. However, some characteristics and process techniques of grating interferometer restrict the measurement precision to get improved. Based on an overall review of model and a method of subdivision and thorough analysis of the factors influencing measurement precision, this paper proposes an approach to improve measurement...
In this paper, a new technique of null-steering mode filtering for a synthetic aperture array is applied for the passive source localization on an AUV mounted array. The proposed method utilizes modal spatiotemporal consistency on a moving array in the stratified waveguide, and overcomes physical aperture limitation for source localization by the AUV mounted short horizontal array. The simulated results...
Computer-supported cooperative work (CSCW) in design explores the potential of computer technologies to help cooperative design. It requires more efficient technologies of communications and reusing knowledge in design process. Web service enables people work in cooperation and can greatly help people share and reuse knowledge on the Web. At present Web service composition is the hotspot of research...
MDA and AOP techniques are used in combination with each other in software design. In MDA, one can use AOP's aspect-oriented concept to create a model so as to separate the concerns. The aspects in AOP can be used as models in MDA to be transformed, checked, queried and maintained. The model-driven based aspect-oriented model weaving framework (MAMW) is a form of model transformation, which separates...
The multi-beam DICANNE system has good performance for eliminating the strong interference. The theoretical basis of this digital system is presented. The steady-state performance is discussed. The signal to noise ratio and signal to interference ratio is derived. Some principles for parameter selection in hardware designing and block diagram of the system are illustrated. The hardware implementation...
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