In this paper, we studied the feedback stabilization of an inductive power transfer system based on available output measurement. The proposed controller relies a full-order state observer in order to estimate unmeasured state. control design problem is challenging due large dimension closed-loop system, which requires too many tuning parameters be determined when conventional methods are emplo...

Research on the existence of specific classes of combinatorial matrices such as the Circulant Weighing Matrices (CWMs) lies in the core of diverse theoretical and computational efforts. Modern metaheuristics have proved to be valuable tools for solving such problems. Recently, parallel Algorithm Portfolios (APs) composed of established search algorithms and sophisticated resource allocation pro...

A divisible design graph is a graph whose adjacency matrix is the incidence matrix of a divisible design. Divisible design graphs are a natural generalization of (v, k, λ)-graphs, and like (v, k, λ)-graphs they make a link between combinatorial design theory and algebraic graph theory. The study of divisible design graphs benefits from, and contributes to, both parts. Using information of the e...

In this paper, a new family of relative difference sets with parameters (m, n, k, λ) = ((q − 1)/(q − 1), 4(q− 1), q, q/4) is constructed where q is a 2-power. The construction is based on the technique used in [2]. By a similar method, we also construct some new circulant weighing matrices of order q where q is a 2-power, d is odd and d ≥ 5. Correspondence: S.L. Ma Department of Mathematics Nat...

In this paper, we apply a new method of evaluating the Discrete Fourier Transform that requires significantly less computational effort. In this evaluation, the Discrete Fourier Transform is defined over the support of the sequence of interest. The method can be applied to search for sequences with zero periodic autocorrelation function. As an example we apply the procedure and we were able to ...

Feature weighing methods are commonly used to find the relative significance among a set of features that are effectively used by the retrieval methods to search image sequences efficiently from large databases. As evidenced in the current literature, dynamic textures (image sequences with regular motion patterns) can be effectively modelled by a set of spatial and temporal motion distribution ...

j, 1 i 2n, 1 j 2n, where J2n is the 2n by 2n matrix of all entries 1. It is known that symmetric Bush–type Hadamard matrices exist for all orders 16n2 for all values of n for which there is a Hadamard matrix of order 4n, see [8] for details. A balanced generalized weighing matrix BGW ν κ λ over a group G is a matrix W wi j of order ν , with wi j G 0 such that each row and column of W has κ non–...