This work investigates the observer-based asynchronous fault detection problem for a class of nonlinear Markov jumping systems. The conic-type nonlinearities hold such restrictive condition that locates in known hypersphere with an undefined centre. In order to guarantee observer modes run synchronously system modes, we introduce hidden model deal this difficulty. Utilizing H <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">∞</sub> and...

Although an autonomous underwater vehicle (AUV) is noted for its good autonomy, concealment and anti-interference ability, errors in inertial navigation system (INS) inevitably increase over time, leading to positional failure during long-term voyages. Terrain-assisted can help the INS correct position. The traditional iterative closest contour point (ICCP) achieves high matching accuracy when initial position error of small, but prone mismatching large. This study combines ICCP with...

Position errors of inertial navigation systems (INS) increase over time after long-term voyages the autonomous underwater vehicle. Terrain-aided (TAN) can effectively reduce accumulated error INS. However, traditional TAN algorithms require a long positioning and need better accuracy, nonmatching mismatching are prone to occur, especially when initial position is large. To solve this problem, new algorithm combining artificial bee colony (ABC) particle swarm optimization (PSO) was proposed...

Quality is the life of embedded software, and software testing a basic guarantee for stable reliable operation system. Looking at difference in target development environment to increase consistency reliability testing, it becomes much more necessary construct environment. After analyzing structure, functionalities characteristics distributed test environment, instead adopting conventional developing pattern, three-layer pattern put forward that can fulfill DESTE based on DESTESS further...

Offshore installations during harsh sea conditions results in rigorous requirements terms of safety and efficiency for the floating crane. The forces resulting from vertical motion vessel have an extensive effect on overall crane structure its lifetime. Moreover, is proposed. Heave compensation widely applied to decouple lifting loads ship motions due wave excitation. purpose this paper compensate crane, analyzed relationship between rope - hanging objects, establish whole heave system. Then...

In this paper, we proposed a new Monte Carlo radiative transport (MCRT) scheme, which is based completely on the Neumann series solution of Fredholm integral equation. This scheme indicates that essence MCRT calculation infinite terms multiple integrals in simultaneously. Under perspective redescribed procedure systematically, main work amounts to choose an associated probability distribution function (PDF) for set random variables and corresponding unbiased estimation functions. We can...

Battlefield electromagnetic environment has become more and complex under the background of information war. Strong interfering signals have seriously affected quality communication reliability information. To weaken or even eliminate effect unwanted signal to wanted one, genetic algorithm (GA) is utilized optimize element current amplitudes in obtaining needed radiation pattern adaptive linear array antenna intensive interference environment. Details on structure system, formulation,...

Hybrid energy storage system(HESS) based on wind power generation system(WPGS) plays an important role in smoothing fluctuations. In consideration of limited advantage single storing dielectric, the hybrid system has a good application prospect with its merits complementation. this paper, take super-capacitors(SC) and batteries for example, advantages disadvantages different topology structures type are analyzed. Firstly, The HESS is built. Then, model principle bidirectional DC/DC...

Abstract We propose a generalization of our previous kernel density estimation (KDE) method for estimating luminosity functions (LFs). This new upgrade further extends the application scope KDE method, making it very flexible approach that is suitable to deal with most bivariate LF calculation problems. From mathematical point view, usually can be abstracted as problem in bounded domain <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll"> <mml:mo...

Project scheduling is the significant technique to attain lean management, and applications can be found in such fields as construction engineering, equipment support, software development, etc.An activity-on-arrow (AOA) version of resource constrained project problem (RCPSP) with objective minimizing duration, derived from decision making support task, formulated a combination optimization solved using priority-based particle swarm (PSO).The activity priorities are represented by positions...

For the first time, an upper degradation bound of frequency sensitivity function in desired band due to difference between quantized and infinitely precise coefficients FIR filters with filter order even is formulated, a novel very efficient algorithm for quantization then developed as application when digital are needed. Of course, this approach applicable case odd. The mainly features simplicity high efficiency obtaining finite word-length from infinite precision coefficients. Also...

The value of sailboats varies with age and market conditions. In this paper, a price prediction model is developed to help sailboat brokers in Hong Kong (SAR) open up the second-hand market. We expect provide most accurate assessment transaction used under various objective conditions for clients. first collected information on from 2005-2019, classified, qualitatively analyzed quantitatively data obtain several influential indicators. Then, we performed ridge regression analysis prediction,...

Aiming at shortening the design time of optimal test cases, a model Collaborative Multi-Agent based on Parallel Genetic Algorithm (CMA-PGA) is put forward, which to be used in combinatorial testing software system. Because competition and coordination mechanisms especially designed CMA-PGA, convergence rate this outperforms that simple genetic algorithm evolving optimum or near-optimum solution.

To ensure the reliable use and to increase ratio of cost efficiency complex weapon system in war, reliability optimization has received considerable study interest. Unfortunately, this kind problem usually belongs catalog nonlinear with multiple local extreme values. make global searching ability kind, Particle Swarm Optimization (PSO) is utilized paper solve problem. The general process PSO algorithm provided implemented using advanced programming language. simulation results show that an...

Genetic algorithm with Chromosome structure adjustment (CSA-GA) technique is used for the first time in this paper to study electromagnetic inverse scattering of multiple perfectly conducting cylinders TE case. The CSA-GA exhibits lots merits such as strong search ability. simplicity, robustness, and faster convergence than those usually adopted GA despite still being very consuming.