Описана энергетическая структура, оптические и электрофизические свойства различных фотокатодов. Особое внимание уделено фотокатодам на основе материалов с отрицательным электронным сродством, имеющим различную структуру. Представлены методы расчета дальности действия для оптико-электронных приборов ночного видения на основе ЭОП.
This comprehensive resource presents the fundamentals of power systems, including the theory, practical steps, and methods used in the design and management of energy systems. Readers are provided with a uniquely comprehensive derivation of power electronics and will find practical advice based on actual occurrences in the field using real life scenarios.
This book offers a direct mathematical approach for models of the main components in an electrical power system. This resource gives insight into power transformer modeling, transmission line and cable modeling, transmission line load ability, power flows, and real and reactive power and frequency control. General fault studies in electrical power systems and state estimation in electrical power systems are also explored.
Elektor lnternational Media provides a multimedia and interactive platform for everyone interested in electronics. From professionals passionate about their work to enthusiasts with professional ambitions. From beginner to diehard, from student to lecturer. lnformation, education, inspiration and entertainment. Analogue and digital; practical and theoretical; software and hardware.
This one-of-a-kind new resource presents cognitive radio from an antenna design perspective and introduces the concept of cognitive radio as a protocol that benefits from under-utilized regions of the spectrum. This book covers topics that govern the operation of a cognitive radio and discusses the use of reconfigurable antennas, reconfigurable filtennas, and MIMO antennas for cognitive radio. The analysis and design of different antenna systems are presented, compared and evaluated. New approaches to improve spectrum efficiency are explored by demonstrating how to design software controlled cognitive radio antenna systems.