???????????????????? ?????????? WiMAX (Worldwide Interoperability for Microwave Access)
???????, ?????????????? ? ??????????? WiMAX. ????????? ? ???????????? OFDMA (Orthogonal Frequency Division Multiple Access), ????????????? ??????????. ??????????? ???????? ????????????. ?????????? ????????? ? ?????????????. ???????? ?????? (????????).
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?????????? ???? ?????? ? ???? Microsoft Access ? ????? ????????????? ????? ?????????? ?? ??????????, ?????????? ???? ? ??????????? ? ??????????? ???????????? ?????????. ????????????? ?????? ?? ????????, ??????????? ?????? ????? ????. ??????? ???? ??????.
????????? ??????, добавлен 12.06.2013The higher frequency bands in satellite telecommunication systems and in astronomy. Design of the Orthomode Transducer. The Optimized Right-Angle Coaxial Junction. Problem of development of multiband feeds for reflector an-tennas in wide frequency ranges.
??????, добавлен 27.07.2016A direct digital frequency synthesizer in modern electronic devices. Criteria of reliability the communication systems. The most promising radio transmission system. Brief introduction of arithmetic operations in digital synthesizer radio signals.
??????, добавлен 26.03.2016Analysis 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.
??????, добавлен 30.10.2018??????????? ????????????? RFID (Radio Frequency Identification) ?????????? ??? ?????????? ??????? ?????????????? ??????????. ?????? RFID-???????. ?????? ??????? ?????????? RFID-?????????? ??? ?????????? ????????????? ??????????? ?? ???????? ?????????.
??????, добавлен 30.05.2017??????????? ????? ????????? IEEE 802.16, ??? ???????? ??????????. ?????????? ? ??? ??????. ????????????? ???????????????? ?????? ? ????????? ??????????? ???????. ????????? ? ???????????? OFDMA-??????????. ??????? ?????????????? ????? ????-????????.
??????? ???????, добавлен 07.09.2015Research of efficiency of a ultrasonic transducer for excitation longitudinal and shear waves on base of yttrium iron garnet thin films. Study of value and the direction of an external magnetic field, geometric sizes of a films, and ultrasound frequency.
??????, добавлен 17.01.2016Features 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.
??????, добавлен 22.03.2016- 59. The frequency-locked loop system of the narrow-band follow-up voltage-controlled oscillator filter
Astatic system of the frequency-locked loop with improved noise immunity. Increasing noise immunity by applying radiopulses convert the spectrum of the input harmonic signal. Implementation radiopulses Converter of the spectrum of the harmonic signal.
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??????, добавлен 07.12.2024?????????????? ???? LTE. ??????? ??????? ????????? ??????????. ??????????? ?????????? LTE. OFDMA-??????????????. ???????????????? ???????????????????. ?????? ?????????? ??????????? ????, ?????????? ?????????, ????? ???????????? ????. ?????? ???? ????????.
????????? ??????, добавлен 28.10.2019A method of in-situ calibrating 3D magnetic sensors based on Hall devices that have linear field characteristics and are non-orthogonal, with known position of each Hall device in relation to the 3D sensor’s substrate. The method’s efficiency is proved.
??????, добавлен 20.01.2017????????? ??????? ??????? ??????????????????? ????????????? ??????????? ???????????? ????????? ???????? ??? ???????????? ???????? ??????????, ????????? ? ?????????? ????????????? ???? ?????????? ??????. ???????? ??????? ??? ????????? Microwave Studio CST.
??????, добавлен 04.11.2018?????????? ???????????? ???????????????? ????????? ?? ?????? ??????????????? ? ???????????? ????????? ?? ?????? ?????????????? ?????. ?????? ???????? ???????????? ??????????? ?????????????? ????????. ????’?????? ??????????? ? CST Microwave Studio.
??????, добавлен 30.10.2016??????? ?????????????? ??????????????? ? ???????????????????? ???????????????? ?????????. ??????????, ??????????????? ? ??????????? ????? ????????. ?????????? ????????? ???????. ???? ?????????? ? QPSK ??????????. ?????????? ?????? ?????? ????????.
???????? ??????, добавлен 19.11.2014The dependence of the conductivity of composites of metal-polymer from the volume fraction of the dispersed phase. Models of the dependence of the conductivity structures obtained on the basis of equations of Maxwell-Garnett and Nielsen, their comparison.
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???????? ??????, добавлен 05.09.2016??????????? ???????????? ????????? ??? ?????? ???????? ?????????????? ???????? ??????? Galileo. ?????? ? ??????????? ????????????? ????????? ? ??????? Microwave Office. ????????????? ????????? ? ????????? ????????????? ??? ?????? ?????? ???????????.
??????????? ??????, добавлен 09.04.2024The construction of electronic equipment principal schemes of communication systems and their workability control. Introduction to schematic capture. Working with multiple circuit windows. Simulation running indicator. Adding miscellaneous text, comment.
?????????, добавлен 11.10.2014??????? ?????????? ??????? ?? ?????? ?????????? ??????????????????? ? ??? ??????????? ?? ??????? ?????????? ????. ?????????? ?? ?????? ??????? ?????????? ?????? (Time Division Multiplexing, TDM) ??? ???????? ??????????? ????????, ?????????????? ?????.
???????, добавлен 06.03.2014Consideration of algorithms for creating an automated system for recording and displaying information from aircraft and observation in the interactive control mode by the operator. Architecture analysis for encrypted video streaming from multiple cameras.
??????, добавлен 23.10.2020????? ?????????????? ????????????? ????????, ?????????? ??? ??????????? ?????? ??????????? ?????????????. ??????? RFID-????? ?? ?????-????. ???????? ?????????? ?????????????? ?????????????. ??????? ????????????? ?????????? ? ?????? ???????? ?????????.
???????????, добавлен 25.12.2013An 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.
??????, добавлен 23.10.2020Familiarization with the concept of field-effect transistors. Laying out circuit boards and mounting RF devices. Classes of operation, forms of modulation, biasing, and operating in a pulse mode. The basic factors affecting low power amplifier design.
??????? ???????, добавлен 25.11.2013Mathematical approach to problems in signal interpretation with using the methods for texture identification, segmentation, template matching, pattern recognition. Fundamental basics about analog and discrete signals, linear systems, Fourier transforms.
?????, добавлен 25.11.2013