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To overcome the high computational complexity of the existing joint tracking and classification (JTC) algorithm, particle filter (PF) is introduced to replace numerical integration in solving JTC, and hence computational load is considerably reduced. Our particle filter based JTC (PF-JTC) algorithm makes use of the target kinematic information provided by the low-resolution radar (LLR) and the target...
The simulation of space microgravity environment is indispensable during the development of space robot since its performances should be examined and enhanced before sent into space. However, the existing methods, such as air flotation method, hanging wire method and buoyancy method, etc., are very expensive and complex. A low-cost microgravity simulating system is proposed in this paper. In this...
This paper presents an interactive robotics modeling and simulation system based on the MSRS (Microsoft Robotics Studio), called iRMSS (Interactive Robotics Modeling & Simulation System). iRMSS is composed of two sub systems. One is the 3D robotics modeling sub-system that facilitates the creation of segment-joint model and physical model for robots. The other is the interactive robotics simulation...
Multi-parameter estimation is investigated for target discrimination and localization in multiple-input multiple-output (MIMO) radar system. With an M-element uniform linear array in the transmitter and a square array consisting of N2 pair of crossed-dipoles in the receiver, a novel method is proposed for joint estimation of direction-of-departures (DODs), two-dimensional direction-of-arrivals (2D-DOAs)...
We propose an extension of mutual information and a new fast algorithm to accelerate the evaluation of mutual information of images. This algorithm adopts gauss function as kernel function, and then uses fast gauss transform to reduce time complexity and improves the fast gauss transform by adaptive k-center clustering. The new algorithm can estimate smoother curves of mutual information function...
In the paper, fourth-order cumulant is applied in joint two-dimensional (2-D) angle and delay estimation in order to suppress Gaussian colored noise and improve resolution for wireless multipath channel. Based on a special plane antenna array, a novel TST-cumulant method is proposed to joint estimation multipath channel parameters of azimuth, elevation and time delay. The proposed algorithm is based...
The goal of image categorization is to classify a collection of unlabeled images into a set of predefined classes to support semantic-level image retrieval. The distance measures used in most existing approaches either ignored the spatial structures or used them in a separate step. As a result, these distance measures achieved only limited success. To address these difficulties, in this paper, we...
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