
Main / Kliment Valeryevich Zakharov
Author: "Kliment Valeryevich Zakharov"
Innokenty Vasilyevich Semushin, Ulyanovsk State University, Doctor of Engineering, Professor at the Chair 'Information Technology';
author of monographs, articles, textbooks, holds patents for inventions; is interested in filtering and control under uncertainty [email: kentvsem@yandex.ru]I. Semushin, Yulia Vladimirovna Tsyganova, Ulyanovsk State University, Candidate of Physics and Mathematics, Associate Professor at the Chair 'Information Technology'
author of a monograph, articles, textbooks and tutorials; is interested in parametric identification, adaptive filtering, numerically efficient algorithms for stochastic systems [email: tsyganovajv@mail.ru]Y. Tsyganova, Kliment Valeryevich Zakharov, Federal ResearchandProduction Center 'ResearchandProduction Association 'Mars', graduated from the Faculty of Mathematics and Information Technology of Ulyanovsk State University in the profession "Mathematical Support and Administration of Information Systems"; programmer;
author of papers in the field of maneuver detection for surface vessel; is interested in statistic applications and models, digital simulation and modeling, navigation and control systems [email: zaharovk@yandex.ru]K. Zakharov


Stable Filtering Algorithmsfor Shipnavigation and Control Systems
The article deals with integral filtering, stressing a computational aspect, and gives a brief survey of numerically stable algorithms based on the three mathematical ideas: factorization of positive definite (covariance and information) matrices, scalarization of vector measurements and orthogonalizaiton of block matrices. Their use suggests a new SquareRoot Extended Kalman Filter algorithm as applied to nonlinear task of seatarget movement analysis. The article also discusses the use of the actual algorithm for navigation and control of ships including collision avoidance. Computational estimation methods, leastsquares method, integral filtration, numerical stability, extended kalman filter, statistic applications and models, digital simulation and modeling.



Sections: Mathematical modeling, calculi of approximationsandsoftware systems
Subjects: Mathematical modeling, Automated control systems, Architecture of ship's system. 
Kliment Valeryevich Zakharov, Federal ResearchandProduction Center Open JointStock Company 'ResearchandProduction Association 'Mars, Graduated from the Faculty of Mathematics and Information Technology of Ulyanovsk State University in the profession "Mathematical Support and Administration of Information Systems"; programmer at Federal ResearchandProduction Center 'ResearchandProduction Association 'Mars'; postgraduate student at the Chair 'Information Technology' of Ulyanovsk State University; author of papers in the field of maneuver detection and filtering. [email: zaharovk@yandex.ru]K. Zakharov


A Dynamic Setting of an Algorithm for the Detection of a Seatarget Maneuver
The article suggests a way of accelerating the detection of a seatarget maneuver. Deceleration when circulation, being common for all the surface ships, is used as an indirect indicator of maneuver. It also considers a modification of the GLR algorithm, which threshold changes dynamically depending on target speed, and gives results of the computational experiment comparing the performance of the source and modified GLR algorithm. Detection of ship maneuver, collision avoidance, changepoint detection.



Sections: Mathematical modeling, calculus of approximations and software systems
Subjects: Mathematical modeling, Automated control systems, Architecture of ship's system. 
