Multiple unmanned combat aerial vehicles (UCAVs) coordinated combat is the main mode to put UCAVs into the battle, while multiple UCAVs task assignment is the key problem of multiple UCAVs coordinated combat. There ha...
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Multiple unmanned combat aerial vehicles (UCAVs) coordinated combat is the main mode to put UCAVs into the battle, while multiple UCAVs task assignment is the key problem of multiple UCAVs coordinated combat. There have recently been some reports on approaches to multiple UCAVs task assignment. But these approaches have some disadvantages, such as being complex on computing, long computing time and so on. In order to overcome the shortages of these approaches, a novel method based on improved ant colony optimization (ACO) is proposed in this paper. Firstly, various air combat predominance functions are deduced, and the comprehensive situation assessment function is built. On the introduction of basic ACO principle and mathematical model, a parallel ACO model is proposed to solve the multiple UCAVs target assignment problem. Subsequently, the parallel ACO pseudo-codes are given in detail. Finally, a multiple UCAVs task assignment simulation platform based on parallel ACO is developed. This platform takes MATLAB graphical user interface (GUI) as the developing tool. Exact applications show that this simulation platform is efficient, easy to use and modify.
This note concerns the delay-dependent robust stability analysis for uncertain singular time-delay systems. The parameter uncertainty is assumed to be norm-bounded and possibly time-varying, while the time delay consi...
This note concerns the delay-dependent robust stability analysis for uncertain singular time-delay systems. The parameter uncertainty is assumed to be norm-bounded and possibly time-varying, while the time delay considered here is assumed to be constant but unknown. By using a new Lyapunov-krasovskii functional which splits the whole delay interval into two subintervals and defines a different energy function on each subinterval, some delay-dependent conditions are presented for the singular time-delay system to be regular, impulse free and robustly stable. The obtained delay-dependent criteria are effective and less conservative than previous ones, which are illustrated by numerical examples.
This note is concerned with the absolute stability analysis for time-delay Lurie control systems with nonlinearity located in an infinite sector and finite one. By using a new Lyapunov-Krasovskii functional that split...
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This note is concerned with the absolute stability analysis for time-delay Lurie control systems with nonlinearity located in an infinite sector and finite one. By using a new Lyapunov-Krasovskii functional that splits the whole delay interval into two subintervals and defines a different energy function on each subinterval and introducing some free-weighting matrices, some new delay-dependent robustly absolute stability criteria are presented in terms of strict linear matrix inequalities (LMIs). The obtained delay-dependent criteria are less conservative than previous ones, as are illustrated by numerical examples.
A synthetical method of multivariable control system performance assessment is proposed in this paper, which uses multivariable minimum variance control (MVC) benchmark to determine the stochastic performance, and nor...
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ISBN:
(纸本)0780382730
A synthetical method of multivariable control system performance assessment is proposed in this paper, which uses multivariable minimum variance control (MVC) benchmark to determine the stochastic performance, and normalized multivariate impulse response (NMIR) curve as an alternative measure of performance to test the dynamic performance, and with the help of auto-correlation function (ACF) and cross-correlation function (CCF) to analyse if there are oscillations exist. The method is applied to assess the performance of multivariable predictive control system of industrial distillation column.
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