Modern Antenna Design
Radar Range Equation and Cross Section. Circular Polarization Components. Vector Effective Height. Mutual Coupling Between Antennas. Radiation Structures and Numerical Methods. Aperture Distributions and Array Synthesis. Dipoles, Slots and Loops.
Подобные документы
Characteristics of different flat multi-band antennas, their purpose, features of the production, and measurement. Description of antenna parameters, their advantages and disadvantages. The results of the modal and full-wave analysis of antennas.
контрольная работа, добавлен 05.04.2015The concept and the basic principles of electronics as a scientific field, the history of its development and modern achievements. Classification and types of antennas, basics principles of operation. The materials used in the manufacture of antennas.
учебное пособие, добавлен 25.11.2013Definition operating distance of air ultrasound range finders by using the modified radar equation. Experimental verification of the developed computational procedure is discussed, and calculations of the relevant terms for this case are presented.
статья, добавлен 30.08.2016The developed antenna system for use in measuring equipment. A technical description of the antenna system. The results of measurements and their comparison with the results obtained with the help of standard antennas included in the measuring equipment.
статья, добавлен 27.07.2021- 5. Smart antenna application for satellite communication systems with space division multiple access
Two different beamforming approaches in space division multiple access for mobile satellite communications: switched-beam antennas and adaptive array antenna systems are considered. The hardware implementation of adaptive algorithm is considered as well.
статья, добавлен 04.11.2018 A novel RLS beamforming algorithm with low complexity and high accuracy for applying in mobile communications smart antenna array processor is presented. Determination of the speed of the proposed conveyor architecture compared with the usual structure.
статья, добавлен 04.11.2018Fluctuations level against wind conditions. K-factor estimation as a function of range. The concept of a forward scattering micro-sensors radar network for situational awareness. Vegetation clutter spectral properties in VHF/UHF bistatic doppler radar.
статья, добавлен 19.07.2021The development of the GPR "ODYAG -4", designed to monitor the state of pavement. Description, device's characteristics of testing on the road. Development of the radiating and receiving modules for efficient radiation and reception of radar signals.
статья, добавлен 07.11.2018Therefore, developers of objects should constantly examine and study effective methods to influence. For modern people it is no longer interesting to use ordinary objects of the created environment, they want to be real members of the creative process.
статья, добавлен 05.09.2024The path and loss - the dominant feature of the propagation environment. Operating frequency, antenna array size - one of the parameters, that plays a significant influence on overall system performance of the next generation wireless communications.
статья, добавлен 17.03.2022An iterative approach to the construction of second-order numerical methods based on the Liniger-Willaby method with minimal error of discretization is proposed. Improved time and accuracy in the process of determining the characteristics of quartz.
статья, добавлен 23.10.2020New approach to remote sensing, which combines the spectral and polarization-metric characteristics of signals. Theory for the case of rain monitoring by an active monostatic radar. Examples of the spectral polarimetric approach in various fields.
статья, добавлен 14.09.2016The scope and conditions of use of holographic underground radar. Their role is to prevent the receiver gain from changing in time to adapt to a lossy environment. Basic principles and mechanisms for the survey of civil and historical buildings.
статья, добавлен 30.10.2018A basic overview of the theory of planar antenna near-field measurements. Determination of far-field pattern from a near-field measurement. Advantages of this technique compared to far-field antenna measurement. Brief history of near-field scanning.
научная работа, добавлен 03.04.2012Researching software to compare noise at the input of the incoherent scatter radar to improve the constants without information from the ionospheric stations. Assessment of the ionosphere and to determine the conditions for short-wave communication.
статья, добавлен 30.10.2016Analysis of the development of super-sensitive superconducting nanobolometer sensors for radiometers with image matrices in the terahertz frequency range. Prospects for the use of nanobolometers with hot electrons with a combined radiation absorber.
статья, добавлен 30.10.2018The results of using the DInSar and PSInSar methods of interferometric processing of radar data for monitoring subsidence of the earth's surface in oil-producing areas in Western Siberia. Features reception and primary data processing ERS-2\SAR.
статья, добавлен 30.10.2018A method that allows to largely overcome the diffraction limit, as well as noise and other interferences in radio imaging devices (including ground and space telescopes) of millimeter, terahertz and far infrared ranges of the electromagnetic radiation.
статья, добавлен 07.11.2018The study of the structure of the developed dynamic link library of routines for processing radar ( EISCAT) incoherent scatter signal simulator with the help of complex software, GUISDAP and MATLAB, and examples of its application in Ukraine in our time.
статья, добавлен 30.10.2016Study of the main problems with heating and ways to resolve them. Review of computer design, methods and techniques used in it, performance analysis. Analysis of possible universal approaches to the automated design of a heating system using a heat pump.
статья, добавлен 14.09.2016The mechanisms for the formation of zones of possible icing of aircraft during the flight are considered. The algorithm of radar detection of such zones, and the conditions for its use. Identification of the threat of icing during an aircraft flight.
статья, добавлен 14.09.2016The problem of H-synthesis of the robust two-degree-of-freedom system taking into consideration the coordinate external disturbances. The effectiveness of suggested design procedure, its application to the system for stabilization and attitude control.
статья, добавлен 22.12.2016Dimensions of culture influencing interpersonal relationships and communication. The role of protocol and etiquette components in intercultural communication. Components of Arab etiquette. Comparison of cultural traditions of Arabs and Europeans.
статья, добавлен 22.07.2023Discussing the notion of the wideband radar ambiguity function, which was introduced earlier, and particularly its nonparametric variant. The new nonparametric variant of the ambiguity function, which is based on the notion of copula, is suggested.
статья, добавлен 22.12.2016Features a mathematical model of wireless mesh-network, which implements the principle of access time to a common radio resources. Allocation of slots and their routing. Analysis of finite delay in terms of the allocation of slots along the route.
статья, добавлен 22.03.2016