scholarly journals Fault-tolerant active phased array antenna with neural network

2019 ◽  
Vol 30 ◽  
pp. 05004
Author(s):  
Svetlana Kondratieva ◽  
Pavel Shmachilin ◽  
Natalia Anosova
Keyword(s):  
Neural Network ◽  
Phased Array ◽  
Phase Distribution ◽  
Fault Tolerant ◽  
Control Unit ◽  
Network Control ◽  
Array Antenna ◽  
Neural Network Control ◽  
Phased Array Antenna

A model and architecture for an active phased array antenna with a neural network control unit has been developed, which provides correction of the amplitude-phase distribution depending on the quality of work of individual array modules. The possibility of adapting the system to failures of individual modules is shown.

scholarly journals RFID Hybrid Positioning Method of Phased Array Antenna Based on Neural Network

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 74953-74960 ◽  
Author(s):  
Junxuan Wang ◽  
Wei Wei ◽  
Weizhu Wang ◽  
Ruixin Li
Keyword(s):  
Neural Network ◽  
Phased Array ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Hybrid Positioning ◽  
Positioning Method

EXPERIENCE OF THE DEVELOPMENT OF THE CONTROL SYSTEM OF MECHANISMS WITH PARALLEL STRUCTURE OF THE TYPE "HEXAPOD" FOR POSITIONING AND INTRODUCTION OF LARGE-SIZED OBJECTS OF INFORMATION SPACE PLATFORM

2018 ◽  
pp. 111-123 ◽  
Author(s):  
A. V. Gorbunov ◽  
E. B. Korotkov ◽  
A. V. Lekanov ◽  
S. A. Matveev ◽  
N. S. Slobodzyan ◽  
...  
Keyword(s):  
Neural Network ◽  
Control System ◽  
Control Unit ◽  
Network Control ◽  
Parallel Structure ◽  
Nonlinear Controller ◽  
System A ◽  
Control Scheme ◽  
Adaptive Neural Network Control

The problems of designing a hexapod control system - a mechanism with parallel kinematics, designed for guidance and positioning of instruments and antennas of orbiting satellite platforms are considered. Based on the solution of the extended kinematics problem, the algorithm for controlling linear drives with a kinematic pair of screw-nut and two two-axis hinges is specified. The hexapod control scheme with the spatial load position sensor is given, the feasibility of positional control algorithms is estimated on the basis of the modern domestic element base. The estimation is made by the method of mathematical modeling. An algorithm for adaptive neural network control of a hexapod is proposed. An artificial neural network has been developed, which together with a nonlinear controller regulates the force acting on linear actuators by control error. To assess the quality of hexapod control, a dynamic model of the hexapod control system was created in the simulation package SimMechanics of the MATLAB Simulink system. A description is given of the hardware part of the digital control system-the hexapod control unit).

scholarly journals DIAGNOSTICS OF HEADLIGHTS FROM NEAR AREA ON PLACE OF BASING

2020 ◽  
Vol 3 (61) ◽  
pp. 124-127
Author(s):  
O. Besova ◽  
V. Karlov ◽  
O. Lukashuk ◽  
I. Petryshenko
Keyword(s):  
Antenna Array ◽  
Phased Array ◽  
Phase Distribution ◽  
Near Field ◽  
Operating Time ◽  
Array Antenna ◽  
Phased Array Antenna ◽  
Phased Antenna Array ◽  
Near Zone ◽  
Microwave Diagnostics

Methods of microwave diagnostics of a phased array allow reconstructing the amplitude-phase distribution in the antenna and implement on this basis methods for adapting the lattice control to those found in the amplitude-phase distribution to defects. The methods of microwave diagnostics from the near zone described in the well-known literature are realizable only in anechoic chambers or on specially equipped training grounds. To solve the problems of adapting a phased antenna array to a technical state and increasing its operating time under extreme conditions, it is necessary to have methods of integrated microwave diagnostics of a phased antenna array at its location. The aim of the article is to develop a method for microwave diagnostics of a phased array antenna, implemented from the near zone of the antenna at its location, and eliminating the influence of echo signals (ES) on the diagnostic results. The article proposes a method for microwave diagnostics of a phased array antenna from the near field, which allows to exclude the influence on the accuracy of diagnostics of the echo signal present at the measuring site and errors in the positioning of the measuring probe. The proposed method will make it possible to implement microwave diagnostics of the antenna from the near field at its location. The results of microwave diagnostics are supposed to be used to implement various methods of adapting a phased array to a technical condition, significantly increasing its life

Phased array antenna controlled by neural network FPGA

2011 ◽  
Author(s):  
Jean-Luc Fournier ◽  
Diane Titz ◽  
Fabien Ferrero ◽  
Cyril Luxey ◽  
Eric Dekneuvel ◽  
...  
Keyword(s):  
Neural Network ◽  
Phased Array ◽  
Array Antenna ◽  
Phased Array Antenna
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