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This study focuses on the design of a wearable inertial navigation device that is based on a MEMS chip and a Bluetooth wireless transmitting module and that uses the object-controlling technology of the Unity game engine to write a game script for a treasure hunt in an ancient Chinese virtual reality world. The wearable device proposed in this paper utilizes an ATmega168 chip as the main controller,...
Under-determined mixtures in blind source separation (BSS) are characterized by the case that they have more inputs than outputs. The classical independent component analysis (ICA) methods cannot be applied to the under-determined case. However, sparseness-based approaches can be applied to the under-determined BSS. Two steps method has been widely employed to solve the under-determined BSS problem:...
Link prediction is an important issue in Social Network Analysis area. Most of the existing link prediction methods aim to find the missing links or to predict the future links mainly based on a static network, ignoring the evolution of the network over time. This paper proposes a link prediction method that can learn from network dynamics. Using machine learning techniques, the method models the...
Knowledge Space Theory has been applied in adaptive non-graded assessment. Space-based approaches need a large amount of computer memory. We introduced a procedure dynamically computing the fringes of a knowledge state according to prerequisite relations between knowledge nodes. And we proposed an effective approach of using fringes of a knowledge state to generate the adaptive assessment path.
This paper proposes a nonlinear controller that allows the unmanned air vehicle (UAV) to follow a predefined path. The controller only needs the information of the inertial speed of the UAV and the distance between the vehicle and the desired path. In order to improve the performance of the controller, a parameter of the controller is adjusted by a fuzzy logic rule. Lyapunov stability arguments are...
This paper describes an improved timing synchronization algorithm for the distribued MIMO-OFDM systems with the CAZAC sequence. This algorithm uses a training sequence which is based on the CAZAC sequence and makes the frame timing objective function with sharper property and thus has good effects on the time delay estimation scheme for different antenna. The simulation results for the distribued...
How to guide discussions in the group of experts from the divergent to convergent thinking is one of the hot issues of Hall for Workshop of Metasynthetic Engineering. This paper presents a method for consistency analysis and visualization of group's opinions. The consistency of group can be measured through the Euclidean distance. The raw experts' opinions are shown and analysed, and multidimensional...
The issue of target localization by means of texture analysis is addressed. First the texture feature extraction based on multi-channel Gabor filter decomposition and the rotation invariant representation of Gabor features are analyzed in the view of their ability of classification. After that, a method based on Gabor features and neural network classifier is proposed. The method is composed of two...
This paper describes robots with object-oriented peripheral modules that are controlled by a personal single board computer (PSBC). In addition, the applications of the PSBC and related peripheral modules are also described.
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