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In recent years, it has been recognized that the there is a gapbetween artificial neural network and the brain neural network. The biological neural network is neither a random network nor a regular network, it is a network structure between the two. While the small world network has both a larger clustering coefficient of a regular network and a smaller average path length of a random network [1],...
To improve the performance of the band-pass filter (BPF) and facilitate the adjustment, a novel 5G Wi-Fi BPF is designed in this article. The high-pass characteristic of half mode substrate integrated waveguide (HMSIW) and band-stop characteristic of modified complementary split ring resonator (MCSRR) are adopted in the BPF. In order to generate a notch wave, loading the spur line in the transition...
Adaptive fuzzy weighted sub-pattern SVD algorithm (AFW-SpSVD) is presented in this paper to solve the problem that singular value decomposition (SVD) descriptor on the whole facial image can not provide enough information for face recognition. Unlike traditional SVD based on the whole image pattern, the key of the AFW-SpSVD operates directly on its sub-patterns partitioned from an original whole facial...
The initial alignment is a key technology for strapdown inertial navigation system (SINS), because the performance of the SINS is largely decided by the accuracy and rapidity of the alignment process. In this paper, a novel alignment method is developed by combining the quaternion Kalman filter with optimization-based alignment idea. The process model and measurement model of the proposed alignment...
Clustering analysis was conducted on a solid rocket motor nozzle to investigate its internal flow field response under spinning condition. A Reynolds stress model and enhanced wall function were adopted to solve the Navier-Stokes equations with swirl flow. Wall temperature and tangential velocities distributions at three random locations of the divergent section, throat and convergent section were...
In fields like robotics, methods of real-time search like LRTS (Learning Real-Time Search) are extensively used to undertake motion planning. Nevertheless, due to limited local information, LRTS suffers much from the irrational scrubbing behaviors because of slow learning and state re-visitation in heuristic depressions. To make agents behave more reasonable, we in this paper firstly propose a hybrid...
In this paper, a face recognition method based on Log-Gabor feature and collaborative representation is proposed, which aims at the problem of Collaborative Representation which has low robustness in illumination change, expression change and occlusion. Firstly, Log-Gabor features of the images are extracted, then the face images are divided into blocks, finally the Collaborative Representation is...
Czochralski(CZ) monocrystalline silicon industrial control processes are nonlinear distribution parameter systems(DPS). It is extraordinary difficult to solve this problem because of complex spatio-temporal coupling and infinitedimensional properties. In this paper, a one-dimensional(1D) thermal path from axial crystallization point to outside is chosen on the axisymmetric plane of three dimensional(3D)...
Large-scale wireless sensor networks (LSWSNs) consist of a large number of wireless sensors that have processing, wireless communication and information acquisition abilities. LSWSNs are promising techniques in many areas such as target detection and tracking, commercial management, intelligent family, military use, preventing forest fire loss, medical diagnostic, etc. In LSWSNs, maximizing the network...
To develop key design metrics for guidance control system of air to surface SAR missile, the relationship between guidance control parameters and measuring errors is analyzed. According to the non-linear model between guidance control parameters and measured motion parameters in the algorithm of optimal guidance law, linearization method is employed to build the relationship expression between guidance...
Ensuring the fidelity of the simulated electromagnetic environment is a prerequisite to perform equipment test in complex electromagnetic environment. Through abstracting the simulated and the objective electromagnetic environments as the similar systems whose components are the different types of electromagnetic signals, a fidelity evaluation method of complex electromagnetic environment based on...
Based on the slip ratio error a PID logic threshold of vehicle ABS controller is established using MATLAB software. In the controller, the input parameters are vehicle velocity, wheel velocity, and the output parameter is the slip ratio. The vehicle brake performance using the ABS controller on ice-snow road is analyzed. Base on a vehicle parametric dynamics simulation model in Carsim software, the...
Monocular visual odometry as the front end of SLAM, its task is to estimate the movement of cameras between adjacent images. One of the most important steps in visual odometry is to find feature correspondence between neighboring frames. In finding the feature matches, the search region can not be too small in order to ensure a large number of matches to be found. On the other hand, it could not be...
The autonomous parking system is an intelligent system which can park a car into a parking spot. Recently, more and more studies pay attention on this system. However, research on evaluation of autonomous parking system in these studies is not enough. Because most of evaluation methods of intelligent vehicle system are based on task completion degree, the evaluation of autonomous parking system cannot...
For the sparseness of the micro-blog text and the less number of micro-blog texts related to the original topic model, a new method of topic tracking for micro-blog texts based on semantic relevance is proposed. Firstly, it constructs a semantic relevance model by using HowNet, mutual information and such structured information as forwarding, comments among micro-blog texts. Secondly, the mode is...
Because the scanning point cloud of the packing box is a bottom-free cuboid shape, the traditional Iterative Closest Point (ICP) algorithm cannot realize the registration of the scanning point cloud and the CAD model, thus cannot realize the error detection of the box shape. To solve this problem, this paper presents a registration algorithm of the incomplete point cloud with shape error and the CAD...
In fusing highly conflicting bodies of evidence, Dempster's rule may derive counterintuitive results. In order to deal with this problem, a novel combination approach is proposed. Pignistic probability distance and uncertainty degree, both of which indicate the quality of the body of evidence from different aspect, are used to determine the weights of the bodies of evidence. Then, by applying Dempster's...
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