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Wind profile prediction at different scales plays a crucial role for efficient operation of wind turbines and wind power prediction. This problem can be approached in two different ways: one is based on statistical signal processing techniques and both linear and nonlinear models can be employed either separately or combined together for profile prediction; on the other hand, wind/atmospheric flow...
In order to estimate the state of health (SOH) of single cell in the electric vehicle power battery pack, this paper researched on t he properties of battery's polarization resistance and ohmic resistance, and then a relative state of health evaluation method which is based on the ohmic resistance was proposed. This method can avoid absolute interference on the battery performance from external such...
Network flow model (NF) with the pairwise property has been paid more attention by researchers in recent years. However, the pairwise will bring a detrimental tracking performance under the occlusion case, such as the phenomenon of ID switches (IDs) and frequent appearing of fragments. Referring to the pairwise, we propose the robust network flow (RNF) model, which is based on a prior that every candidate...
Patch strategy is widely adopted in visual tracking to address partial occlusions. However, most patch-based tracking methods either assume all patches sharing the same importance or exploit simple prior for computing the importance of each patch, which may depress the tracking performance when the target object is non-rigid or the background information is included in the initial bounding box. To...
The increasing demand on higher transmission speed and lower latency has become popular in 5G related researches. Cooperation is one possible solution to enhance system performance. In this work, we focus on the problem of enhancing the performance of cooperative among mobile terminals under the constraint of cooperative link capacity. Different from traditional researches, we consider the scenario...
Realizing a reliable and robust localization based on mobile nodes plays a critical role in increasing pervasive sensing environments and location-based services (LBS). Although the Global Positioning System (GPS) has been widely used in outdoor environments, indoor robust positioning is still a challenging problem because of the unavailability of GPS and complex indoor environments where non-line-of-sight...
The reduction of energy consumption in base stations becomes popular recently. However, it is difficult to reduce energy consumption under the constraint of Quality of Service (QoS). In this paper, we propose a novel energy aware control method to adjust the radius that the base station provide the service in wireless downlink systems, the optimal radius of the base stations provide service could...
To reduce energy waste in future cellular networks, the most effective and reliable method is to close idle base stations when not needed, but how to find the proper and optimal method to control the target cell and the adjacent ones are still blank according to recent researches. In this work, we extend our research in cooperative scheme, and figure out a heuristic control method of eNodeBs in GREEN...
An Active Disturbance Rejection based solution is proposed for the position control of a standard inverted pendulum system, demonstrating a largely model independent design that is distinctly different from existing model-based designs from classical as well as modern control theory. The quality of the control loop is further improved with a unique double disturbance observer design, which rejects...
The amplitude of lightning current is high and its rising time is short enough to cause over voltage in the power system. Tranditional Rogowski coil has been widely used in the lightning current measurement system for its magnetic saturation and good insulation performance. Owing to the shortcomings of traditional Rogowski coil such as the uneven distribution parameters and the unequal density of...
A universal platform for aerospace craft simulation was proposed in order to satisfy the various requirements in space tasks simulation. The platform is composed of a series of modular and standardized simulators, in which the kinematic, optic, radar or other characters of crafts can be simulated. The command & control functions and task programming processes can also be simulated in either...
A three-stage-structured prey-predator system with predator density dependent time delay is considered. The positive and uniformly bounded of the solution of the system are obtained, and the conditions for the system occurring global Hopf bifurcation is given. Finally, numerical simulations and brief conclusion are given.
The safety of the Jiangdong reservoir at Jiulong River, as the main source of local drinking water, is crucial to the residents in Xiamen city. In order to simulate and predict the water quality of the Reservoir, an integrated model system was developed based on GIS and RS technology, which was composed of non-point source (NPS) simulation model, hydrodynamic model, and river water quality model....
Low-cost strapdown inertial navigation system (SINS) cannot implement high-precision alignment by itself on stationary base, meanwhile, devices errors are hard to be estimated. Focusing on above, double-antenna GPS/SINS integrated initial alignment Kalman filter is established. On conditions of pitch/yaw and roll/yaw (double-antenna GPS output), observability of system and devices errors are quantitatively...
In nowadays, hand gestures can be used as a more natural and convenient way for human computer interaction. The direct interface of hand gestures provides us a new way for communicating with the virtual environment. In this paper, we propose a new hand gesture recognition method using self-organizing map (SOM) with datagloves. The SOM method is a type of machine learning algorithm. It deals with the...
This paper presents method used hand gesture recognition in human-computer interaction and control. Nowadays in dataglove-driven motion capture field, researchers preprocess the raw sensor data of the glove with calibration methods for acquiring a high precision in the VR environment. But there are still alternative solutions. Some machine learning algorithms, for example the self-organizing map method,...
This study proposes an adaptive wavelet cerebellar -model-articulation-controller (AWCMAC) for multi-input multi-output nonlinear systems. In this proposed scheme, wavelet cerebellar-model articulation-controller (WCMAC) is the main controller utilized to mimic an ideal controller and the parameters of WCMAC are on-line adjusted by the derived tuning algorithm. Moreover the robust controller is designed...
A predator-prey system with group defense and impulsive effect is established. By using Floquet theorem and small amplitude perturbation skills, a locally stable prey-eradication periodic solution is obtained when the impulsive period is less than some critical value. Otherwise, the system is permanent. Finally, some numerical examples and conclusion are given.
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