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This paper presents a method to perform model-free fixed structure controller synthesis. Based on frequency response data of the plant, the parameters of a predefined controller structure are optimized directly with respect to closed-loop performance specifications. As a result, no parametric plant model is required such that time consuming iterative identification-synthesis procedures can be omitted...
Cloud model is an effective tool in uncertain transforming between qualitative concepts and their quantitative expressions. In this paper, we introduce a new optimization method inspired from cloud model theory. The innovations of the algorithm are the estimation of good solution regions and new solution production according to the cloud model theory. First, the algorithm uses information obtained...
In Statistical Process Control (SPC), when dealing with a quality characteristic x that is a variable, it is usually necessary to monitor both the mean value and variability. By inspecting the absolute value of sample mean shift, a single CUSUM chart (called the ABS CUSUM chart) has been devised by an optimization algorithm and fully investigated for this purpose. The optimization algorithm (called...
The work presented in this paper deals with the generation of trajectories for humanoid robots imitating human gaits captured with a motion capture system. Once the human motion is recorded, this one is modified to be adapted to the robot morphology. The proposed method could be used for human-like robots of different sizes and masses. The generated gaits are closed to the humans ones while respecting...
We consider relay broadcast channels (RBCs) with multiple antennas at all nodes. A practical linear preceding, relaying and combining scheme is proposed. Under an overall power constraint, we derive the optimal power allocation solution in a closed form. A low complexity beamforming vector optimization algorithm is proposed to maximize the effective channel gains and improve the system performance...
Feed rate has always been one of the most important indicators for CNC performance, while transfer velocity between two adjacent segments pays a key role in improving feed rate. Since the contour of a special part commonly consists of line and arc segments (non-micro segments), as well as continuous micro line segments (micro segments) so there should be different methods to deal with their transfer...
In this paper a framework for multichannel image restoration based on optimization of the structural similarity (SSIM) index is presented. The SSIM index describes the similarity of images more appropriately for the human visual system than the mean square error (MSE). It has not yet been explored for the multi channel restoration task. The construction of an optimization algorithm is difficult due...
This paper demonstrates that optimal selection of renewable power generators and energy storage devices in a grid-connected micro-grid, in conjunction with an optimal dispatch strategy, can significantly reduce the micro-grid lifetime cost and emission. The paper presents a mathematical model and optimization algorithm to identify the optimal micro-grid configuration (in terms of the installed capacities...
This paper describes an industrial robot joint offset calibration method called the virtual line-based single-point constraint approach. Previous methods such as using CMM, laser trackers or cameras are limited by the cost or the resolution. The proposed method relies mainly upon a laser pointer attached on the end-effector and single position-sensitive detector (PSD) arbitrarily located on the workcell...
Recently, opportunistic routing has been proposed to take good advantage of broadcast nature and spatial diversity to achieve high throughput, despite highly unpredictable and lossy wireless links in multi-hop wireless networks. Most previous works provide heuristic solutions to select as many candidates, and don't take inter-candidate delivery probability into account, which might suffer acknowledgement...
This project involves asking three sets of engineering management students to develop group projects integrating simulation and optimization in different ways and assessing their absolute and relative educational effectiveness. These approaches are: a) Ask students to repeatedly simulate, using a conventional simulation tool, Witness?? in this case, a system whose design criteria are modified according...
An S-shape model and an optimization algorithm (GASA) are developed to infer genetic interactions and transcriptional regulation of a few genes simultaneously using microarray gene expression data (MGED). GASA consists of a genetic algorithm and a simulated annealing (SA) algorithm, which is enhanced by a steepest gradient descent algorithm to avoid being trapped in local minimum. An application of...
Infrared imaging is the concentrative embodiment of the highest level of contemporary infrared technology, and infrared imaging technology becomes one of the key technologies of current national defense science and technology. In the infrared imaging simulation, after gaining the temperature of object scene, firstly establish the radiation temperature model to calculate the radiation quantum of object,...
It's a common technology to query and paginate in Web information system. In traditional method, it usually paginates in client or Web terminal. But if we need operate massive data, traditional methods will have many defects, such as high maintenance cost, low query efficiency. The experiment results indicate that optimization algorithm of pagination based on stored procedure combining Ajax technology...
This paper presents a shunt active power filter that uses an optimization algorithm for the harmonic reference current calculation. The algorithm is designed for an active filter that is initially rated for mitigation of only the harmonic currents given by non-linear industrial loads. To utilize the full power rating of the inverter and still be able to improve the power quality of a typical industrial...
Wireless ad hoc network (MANET) has been adopted in many applications. It usually has limited bandwidth and computational capacity, so it may prefer fewer transmissions in the network. It is vital for one node to minimize the transmission delay. Traditional optimization algorithm tended to achieve the best performance only for some nodes in the network while neglecting others. In this work, we investigate...
The organic computing (OC) initiative deals with new design concepts, which facilitate the development of technical systems with life-like properties such as self-organization, self-optimization and self-configuration in order to make them robust, flexible and adaptive. In this paper, we systematically investigate different interaction patterns in self-organizing agent populations using a multi-robot...
In this paper, we propose a new relay selection scheme based on the channel gain of the source-to-relay and relay-to-destination links to maximize the upper bound on the overall received signal-to-noise ratio (SNR). In order to reduce the complexity of the scheme, we assume that each of the selected relays is allocated identical power. The total power is reasonably allocated between the source and...
A combined power control and data rate adjustment scheme using minimum mean square error (MMSE) multi-user receiver for multi-carrier code division multiple access (MCCDMA) system uplink is proposed. The proposed algorithm can guarantee target SIR'S while keeps transmit power of every subcarriers at the minimum level and faster convergence, resulting an optimal overall system performance. Computer...
In this paper we propose a low-complexity non-parametric pre-filtering/weighting technique for Time of Arrival (TOA)-based target tracking systems. The output of a wavelet transform computed on each one of the anchor-to-target links is used to estimate the noise and the dynamic for the corresponding link. Subsequently this information is used to weight and adaptively decide on the reliability of pre-filtered...
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