The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We propose bias-compensated algorithms based on the RZA-LMS algorithm and diffusion RZA-LMS algorithm. Our proposed algorithms improve the accuracy of estimation under the situation that input of the adaptive filter contains noise. Estimation methods of the input noise' variance are given for implementing our single-node and diffusion bias-compensated algorithms. Simulation results show that the proposed...
Shell structure can help us understand the transport properties of the network clearly, and also identify the influential spreaders in complex networks. The robustness of networks suffering shell attacks is a topic of great interest since it is an important issue affecting many real-world networks. We study the robustness of two coupled network systems under shell attack, where multiple support-dependence...
Simulation has been used for decades as a tool to support decision making in manufacturing systems. It is far cheaper and faster to build a virtual system and experiment with different scenarios and decisions before actually implementing the system. Simulation has been widely used to support decisions in manufacturing systems' operations and configuration. Nevertheless, knowing the changeable nature...
There are many software-based tools that can be used to evaluate the radio-ecological impacts. Plume Gaussian is a simple dispersion model, easy to be implemented and developed further. This paper describes the application of Plume Gaussian model to simulate the dispersion of I-131 released around the Serpong Nuclear Area (Kawasan Nuklir Serpong, KNS). The software development consists: mathematical...
Airborne Single Observer Passive Location has the characteristics of mobility and a wide range impaction, while location method basing on phase difference change rate also has the characteristics of getting a quick location with high precision. Studying the Kalman Filter (KF) applied in Airborne Single Observer Passive Location, it analyzes the principle of the position method basing on phase difference...
Aiming at analyzing the vibration and the vibration inconsistent of CMS04 Maglev in guideway step disturbance during the running in Tangshan test line, this article builds the suspension model of double point in one bogie and analyzes its open-loop instability in theory. Gap-current double loops cascade control strategy is also used to simulate and analyze the dynamic process of model passing guideway...
Weapon-target assignment process with uncertainty and unpredictability, sometimes need to be aborted, and then distribute the firepower units immediately when there are many new targets or an emergency. The assignment results may not be the global optimal, but should be the best under the influence of the current state, that is, the algorithm has anytime property. Now the algorithm to solve the question...
In order to reduce the initial disturbance and improve the stability of air defense missile, the missile launching equations of motion are derived and simplified using the method of modal substitution. Based on these equations, the coupled rigid-flexible dynamic modeling is built in the ADAMS software to analyze the dynamic behavior and stability of missile launching process. The results indicate...
This paper studies the modeling and control of a quadrotor with a suspended load. It is shown that the excessive load swing is the part of the system dynamics, which may degrade the quadrotor control performance. A detailed analysis about the system modeling with the load swing effect is carried out based on Newton-Euler and Euler-Lagrange method. A framework for sliding mode control of the quadrotor...
This paper investigates the finite-time output feedback control problem for DC-DC buck converter systems. By using the techniques of finite-time controller and finite-time convergent observer, a new fast voltage regulation control algorithm is designed which can guarantee that the output voltage converges to the reference voltage in the finite time. An inductive current convergent observers has been...
The control of multiple homonuclear spin systems is a long-standing problem in nuclear magnetic resonance (NMR). In this paper, we introduce the brachistchrone algorithm to local unitary control of such systems, which usually take a long operation time to discriminate because of their small resonant frequency differences. We show that for this particular problem the model can be reduced from 2N-dimensional...
The underactuation of the standard quadrotor(four independent control input versus six output) is a serious problem which can be solved by tilting four rotors. The steering wheel is installed on each axle of the original quadrotor so that the quadrotor turns into an actuation system(eight-input versus six-output). In this paper, the dynamic model of the tilt-quadrotor is established, and the validity...
Body weight support (BWS) system is increasingly used in conjunction with treadmills to assist the patients with neurological impairments. Owing to lower limbs of the patients unable to bear the whole weight during the rehabilitation training, some weight can be removed to help the patients recover the basic walking ability gradually. Therefore, considering the man-machine relationship and the effects...
To model the cooperative behavior under the realistic world, we put forward a high clustering network model with the property of adjustable power-law, and analyze the evolution of the prisoner dilemma game on this improved HK network model. Using simulation experiments, we investigate the effect of high clustering property of this network on the cooperative behavior. Extensive simulations indicate...
This paper addresses the design of a path-following using a sampled-data Model Predictive Control (MPC) approach for a fixed-wing Unmanned Aerial Vehicle (UAV). In path-following, the motion task consists in steering the vehicle towards a given desired geometric path and make it follow along the path with an assigned speed profile. To this end, we propose an MPC controller that will generate desired...
In this project, we developed a chess play system based on Kinect vision sensor, which recognizes different hand gestures as a command and sends these commands to V-REP robotic simulation tool. Delta type robot will play chess according to the commands sent via vision software. In our system, we have tested for 2 different chess opening scenarios and DOF checking mode scenario, then we obtained results...
In this paper, the reliability of transient simulation results of uni-traveling-carrier photodiodes (UTC-PDs) is demonstrated by compared with experimental and reported simulation results, when the parameters of drift-diffusion model are set correctly.
Aiming at the speed regulation system of permanent magnet synchronous motor (PMSM), the research and analysis of PMSM speed regulating system are made. Based on the finite time control technique, a finite time controller is designed in this paper. This design utilizes the error between the output of the speed and the reference speed, to be controlled by a finite time controller to obtain the q-axis...
With the development of deep space exploration, the requirements of accuracy and real time for navigation services become higher, so that the traditional ground based network can hardly meet the user's needs. And the accuracy of existing autonomous navigation method, such as celestial navigation, cannot meet the requirement either. In order to improve the performance of autonomous navigation for deep...
A stratospheric airship is difficult to achieve long duration flight at about 20km altitude at mid or low latitudes, where it endures pressure changes due to the heating and cooling of the day-night cycle. In order to overcome these difficulties, this paper proposed a novel stratospheric airship based on triple-gasbag principle, and investigated its static and dynamic behavior. Firstly, this paper...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.