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Cross Polarization Interference (XPI) is an inevitable problem in the Co-Channel Dual Polarization (CCDP) system. Therefore, a Cross-Polarization Interference Cancellation (XPIC) is necessary for the system. In this paper, we focus on the XPIC method at baseband, of which the main components are adaptive equalization based on Soft Constraint Satisfaction (SCS) algorithm. The attractive feature of...
Based on recent results on adaptive sliding mode control (ASMC) design for nonlinear systems with uncertainties, we propose some lemmas and theorems to discuss finite time convergence (FTC) and alternative approaches to smoothen the adaptation tuning algorithm of the ASMC design. These modifications are proposed to enhance accuracy without overestimation of the uncertainty magnitude and to suppress...
This paper deals with the design of an adaptive observer that can estimate both the states and the parameters of a class of nonlinear systems. The purpose of the proposed method is to eliminate the restrictive dissipativity condition from the stability proof that is present in many previous works presented in the literature. The observer gain calculus is cast as a linear matrix inequality (LMI) feasibility...
Deformation that happens in the real world is a nonlinear process, and so are the outliers in deformation observations. With the requirements on automation, real-time and accuracy becoming stronger and stronger, it is also more and more important to fast detect and remove the outliers in monitoring observations. In the paper the approximation of nonlinear function mapping relation using artificial...
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