In this correspondence, Nussbaum gains are introduced in the backstepping design to obtain adaptive controllers for systems with unknown high-frequency gain. Two kinds of modified backstepping control design schemes are developed. It is shown that both schemes can give asymptotic tracking.

This paper investigates the tracking characteristics of Frequency domain least-mean-square (FDLMS) adaptive filters and Time domain least-mean square (TDLMS) adaptive filters and compares the convergence performance of TDLMS and FDLMS adaptive algorithms for both real and complex valued signals. We simulated the adaptive filter using MATLAB, and the results validate the better performance of FD...

due to damaging effects of speckle noise to information of radar images, reduction of these effects has been considered by many researchers. we discussed speckle reduction of radar images based on curvelet transformation. more specifically we discussed the speckle reduction with emphasizing on preservation of the edges by hard thresholding of curvelet transformation. in this algorithm, first mu...

This paper discusses the communicative potentials of Computerized Adaptive Testing. The study is based on a model that offers a set of independent communicative concepts to describe the Genre of an interactive application. This model will be the starting point to analyze the stages of the interaction cycle that are typically inherent to every generator of computerized adaptive tests. In each of...

In this paper I present a procedure that generates adaptive proofs for finally derivable adaptive logic consequences. The proof procedure for the inconsistency adaptive logic CLuNr is already presented in [10]. In this paper the procedure for CLuNm is presented and the results for both logics are generalized to all adaptive logics, on the presupposition that there exists a total proof procedure...