Performance analysis of angle modulated MQAM transmission techniques
A novel method of digital modulation with a high spectral efficiency, called the Angle Modulated M-ary Quadrature Amplitude Modulation. The main advantage of EM-MQAM is an ability to transmit a multilevel MQAM constellation as a constant envelope signal.
Подобные документы
The use of digital technologies in the protection of intellectual property. Creating a new digital environment that allows people to do more and more activities. Distributed ledgers and smart contracts. Digitized content of contracts in the database.
статья, добавлен 17.09.2021- 52. 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.
статья, добавлен 14.08.2016 Современные тенденции техники радиоприема в последние десятилетия. Взаимосвязанные процессы развития интегральной микроэлектроники, внедрение методов и средств цифровой обработки сигналов и вычислительной техники. Диагностика радиоприемника "Signal-301".
курсовая работа, добавлен 12.09.2014Fluctuations 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 19.07.2021Investigated inverse kinematic model approaches. There were analyzed pseudoinverse method, transpose of Jacobian method, damped least squares method as an optimization method. The results of the simulations show the advantages of optimization method.
статья, добавлен 28.08.2020The damped oscillations in telemetry signals caused by the lack of homogeneity of the communication channel. Characteristic of communication channels between satellite and ground stations, receiving the BER parameter with reference to telemetry signals.
статья, добавлен 30.10.2018- 57. Chebyshev filter
General immunity of radio, the passage of noise through the path of the device. Calculated the data transmission speed and the duration of single elements, bandwidth filters transmission and reception, the effective value of interference in the channel.
курсовая работа, добавлен 12.12.2014 Design of complex large-scale systems. Multilevel multiobjective optimization methodology that can be implemented in the computer-aided design software for technical means optimal choice. Scheme of the simulation table for navigation equipment testing.
статья, добавлен 14.09.2016The theoretical effects of using parallel TCP flows to improve network performance for intensive applications with distributed data. Choosing of the maximum number of sockets necessary to maximize TCP throughput while imultaneously and avoid congestion.
статья, добавлен 30.01.2017The development of a positioning algorithm on the board of a moving object using the information about the direction of signal reception from Global System for Mobile Communications base stations. The system as the effective method of positioning.
статья, добавлен 22.12.2016Finding a way to build an active eight-band equalizer to adjust the frequency response shape. Characterization of graphic equalizers based on a differential amplifier, signal composition of bandpass filters and an active filter with a feedback circuit.
статья, добавлен 12.05.2024Использование метода временного мультиплексирования и кросс-коммутации тайм-слотов в технологии Synchronous Digital Hierarchy. Преимущества и недостатки технологии SDH. Механизмы самовосстановления и схемы резервирования в телекоммуникационных сетях.
реферат, добавлен 26.10.2015Використання цифрових технологій у впровадженні автономних транспортних засобів, керування яким покладається на штучний інтелект. вплив цифрових технологій на розвиток дігітальної культури сьогодення та становлення напряму Digital anthropology.
статья, добавлен 07.08.2024The 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 30.10.2016The mutual information approach, correlation integral analysis, false nearest neighbour algorithm. Lyapunov exponent's analysis, and surrogate data method are used for comprehensive characterization on the basis of Geomath microsystem technology.
статья, добавлен 29.07.2016Причины создания технологии связи хDSL (Digital Subscriber Line), ее основные преимущества. Различные типы технологий хDSL и краткое описание их работы. Разделение технологий xDSL по соотношению скоростей передачи в прямом и обратном направлениях.
реферат, добавлен 21.01.2015Consideration of trends in the development of network digital communications and convergent media during the pandemic. Determination of the influence of communications on the legitimacy of political institutions and the formation of a new world order.
статья, добавлен 04.12.2022The method X dB using spectrum analyzer, measuring receiver. The possibility of solution problem using SDR platform HackRF One on example emission of digital television. Procedures for emissions were developed on the basis of national normative documents.
статья, добавлен 14.09.2016Modelling of Chaotic Rossler System in LabView. Time dependences of the Rossler system. Fourier spectral analysis when the number of iterations. Software interface for masking and decryption of the information carrier with the chaotic Rossler system.
статья, добавлен 30.10.2016Application of advanced artificial intelligence methods to improve driving, increase safety and efficiency of road traffic. Performance evaluation of improved "You Only Look Once" image set models developed for traffic light detection and recognition.
статья, добавлен 05.09.2024Are given the method of determination of angular parameters, which is used in micromechanical inertial-satellite systems, constructed by the method of compensation or based on the reduced Kalman filter. Measurement errors of angles are investigated.
статья, добавлен 22.12.2016Research 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.
статья, добавлен 17.01.2016Features of online communication, the main tools for organizing polite communication. Analysis of speech etiquette as a system of norms and rules of speech behavior. Implementation of several communication tactics. Emotional comfort in online communities.
статья, добавлен 11.03.2021Electronic Chart Display and Information Systems. Improving the efficiency and responsiveness of radio communication to enhance the safety of navigation. Selective Calling controller. An analysis of the navigation environment while reducing the risk.
статья, добавлен 12.08.2016The 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 17.03.2022