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This paper presents a situation assessment system structure of the warships-airplanes joint operation and a new situation assessment algorithm based on parameter learning in. Bayesian network. Previously, situation assessments are usually operated by using a normal kind of Bayesian network with immutable probability distribution, which may cause the evaluation is too subjective. Therefore, a Bayesian...
Time domain reflectometry (TDR) applied to live cables is hampered by the absence of a clear reflection from the far end. Instead, location of partial discharge (PD) can be extracted from small structures in recorded patterns arising from any impedance variation along the signal propagation channel. This paper explores two approaches for a single-sided PD location system. The first method compares...
In a cognitive radio network (CRN), when the secondary users (SUs) are battery-powered devices, the concept of energy-efficient design is very important. In this paper, we propose an energy utility function by formulating the achievable data rate of a cooperative CRN in terms of the energy consumption by the CRN. The maximization of the energy utility function is obtained by jointly designing the...
In this paper, we consider a joint optimization of sensing parameter and power allocation for an energy-efficient cognitive radio network (CRN) in which the primary user (PU) is protected. The optimization problem to maximize the energy efficiency of CRN is formulated as a function of two variables, which are sensing time and transmit power, subject to the average interference power to the PU and...
This paper presents a multi-DOF and multisensory prosthetic hand (HIT V prosthetic hand) with five modular fingers. The hand has a total of 11 joints, which are actuated by 6 intrinsic DC motors. Each digit (2 joints, DIP and MCP, coupled) is driven separately by a motor within the proximal phalange, while the trapeziometacarpal (TM) joint of the thumb is specially devised with an additional actuation...
Performance of a robotic system depends o n the mathematical model that is programmed within the software of the robot. Usually the mathematical model of a robot is calculated by the designer and is re-calibrated during the time of operation. Model of the robot is essential for its software to take intelligent actions. Equipping the robot with the capability to self model will help itself to re-correct...
The problems of optimal design transmission waveform and sensing matrix in the compressive sensing radar (CSR) system were considered. A new iteration algorithm was proposed for joint design transmission waveform and sensing matrix. This algorithm had better rate of convergence and less mutual coherence than traditional design methods. We gave simulation results of the target detection performance...
Distributed compressed sensing (DCS) is able to exploit both intra-and inter-signal correlation structures of multi-signal ensemble. This paper proposes a DCS scheme for image signal compression and reconstruction. The key idea is to exploit the inter-correlation of the blocks that split from the image. Significantly, joint sparse model was employed to compress the intra- and inter-redundancy of the...
When observing a person (an actor) performing or demonstrating some activity for the purpose of learning the action, it is best for the viewers to be present at the same time and place as the actor. Otherwise, a video must be recorded. However, conventional video only provides two-dimensional (2D) motion, which lacks the original third dimension of motion. In the presence of some ambiguity, it may...
Human gait capture by vision plays an important role in the guidance for the rehabilitation of the lower limbs dysfunction patients. Unfortunately, it is not included in most of the present rehabilitation devices. This paper presents a novel real-time system for human gait capture by detecting the joints trajectory to obtain 3-D information of the joints motion by Kinect. Firstly, we put markers on...
Sparse signals can be sensed with a reduced number of projections and then reconstructed if compressive sensing is employed. Traditionally, the projection matrix is chosen as a random matrix, but a projection sensing matrix that is optimally designed for a certain class of signals can further improve the reconstruction accuracy. This paper considers the problem of designing the projection matrix Φ...
This paper reports a structured literature survey of research in wearable technology for upper-extremity rehabilitation, e.g., after stroke, spinal cord injury, for multiple sclerosis patients or even children with cerebral palsy. A keyword based search returned 61 papers relating to this topic. Examination of the abstracts of these papers identified 19 articles describing distinct wearable systems...
The human body is in a posture every minute of every day: it can be static, such as when resting, or dynamic, such as when walking. It is quite frequent that people assume poor postures during the day and they make their bodies more susceptible to injuries. Considering this, prevention assumes a central role as it can avoid damage and pain in day-to-day life, but it is very poorly practiced in the...
Upper Limb Work-related Musculo Skeletal Disorders (ULWMSD) are constantly increasing every year in developed countries. It is estimated that in Italy, in 2007 ULWMSD were the 41,6% of all the work-related pathologies. In this context, the importance to correctly diagnose and treat this kind of pathology is growing. Traditionally the assessment is done using pen-and-paper observational techniques...
The overall objective of this work is to develop a system composed of master, slave and a control system for special medical applications. A PROMIS (Pprime RObot for Minimally Invasive Surgery) system is designed to be cost-effective with a less complication of use and an application-specific for collaborative operations between the surgeon and the robot.
The use of non-invasive methods for detecting motion of the human body in three dimensions has become very popular in recent years due to commercial availability of economically priced 3D sensors. In this paper, we present a web-based interactive serious game interface that uses noninvasive methods to recognize the movements of the body. Our framework provides a mechanism that can engage disabled...
Motion analysis technologies have been widely used to monitor the potential for injury and enhance athlete performance. However, most of these technologies are expensive, can only be used in laboratory environments and examine only a few trials of each movement action. In this paper, we present a novel ambulatory motion analysis framework using wearable inertial sensors to accurately assess all of...
Collaborative spectrum sensing in Cognitive Radio Networks is vulnerable to Spectrum Sensing Data Falsification (SSDF) attack. Many existing SSDF attack defending algorithms need the assistance of reference sensing devices with high spectrum sensing performance, which are difficult and costly to be implemented in reality. Most of other existing approaches are based on statistic characteristics of...
In this paper, we propose a cognitive transmission scheme for Amplify-and-Forward (AF) two-way relay networks (TWRNs) and investigate its joint sensing and transmission performance. Specifically, we derive the overall false alarm probability, the overall detection probability, the outage probability of the cognitive TWRN over Rayleigh fading channels. Furthermore, based on these probabilities, the...
A five-fingered, multi-sensory and biomimetic prosthetic hand is presented in this paper. The HIT-Hand is a multisensory and integrated five fingered hand with in total 11 DOFs. The hand has five fingers and each of them can be driven individually by the embedded actuation and control system fitted in the palm. Each finger has 2 DOFs and two joints, the two joints are mechanically coupled by a cable...
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