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In order to inhibit the degeneracy phenomenon in particle filter (PF) and the sample impoverishment caused by resampling, this paper proposes particle filter technology based on pseudo parallel genetic algorithm (PPGA-PF), in which PPGA improves PF. Theoretical analysis and computer simulation on PPGA-PF, PF and EKF in the Global Positioning System (GPS) show that filtering performance of the proposed...
In order to improve the ability of evolution algorithm to solve the complicated combinatorial optimization problems of massive deceptive problems, this paper proposes an improved algorithm which introduces simulated annealing operator to differential evolution algorithm. It aims to enhance the population multiplicity by using the simulated annealing operators' mutation search, and to improve the differential...
This paper is concerned with the solution of unsteady incompressible flow problems using Marker and Cell finite difference discretizations and preconditioned Krylov subspace methods. Our emphasis is on the preconditioner that can be thought of a new splitting of the discretized equations. The preconditioner we focus on is the variation from the Hermitian and Skew-Hermitian (HSS) Splitting preconditioner...
Recently, Zhang and Huang [Convergence of a generalized MSSOR method for augmented systems, J. Comput. Appl. Math. 236 (2012) 1841-1850] discussed the GMSSOR method. In this paper, we further study the generalized modified symmetric successive (GMSSOR) method for solving singular augmented systems, and give the corresponding semi-convergence analysis.
For large sparse saddle point problems, Zhu studied a generalized local Hermitian and skew-Hermitian splitting (GLHSS) method for the non-Hermitian saddle problem (see M.Z.Zhu, A generalized local Hermitian and skew-Hermitian splitting iteration methods for the non-Hermitian saddle point problems, J. Comput. Appl. Math., 218 (2012) 8816-8824). In this paper, we present GLHSS method for singular saddle...
In order to solve the situations in which the neural networks can not reflect the volatility of the power load in time or some problems of the time cumulative effect, the process neural network is established in this paper. Aiming at the lower speed in the process of neural network training, the problems of convergence uneasily and so on, we design the accelerate disturbance particle swarm to optimize...
OSPFv3 is an interior gateway routing protocol, which is widely used in IPV6 environment. It is the realization of OSPFv2 for IPV4 in the IPV6 environment. They are the same in the basic principles. The paper uses the OPNET network simulation software to simulate and analyze the performance of OSPFv3, and found that both the convergence period is the same roughly, the flow is concentrated in the first...
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