Signal analysis: time, frequency, scale and structure
Mathematical 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.
Подобные документы
Development and justification of new methods for tracking the frequency of a harmonic acceleration signal based on estimates of the instantaneous frequency and phase. Ways to improve the efficiency of new systems, assess their advantages, disadvantages.
статья, добавлен 14.09.2016An 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 23.10.2020Presents new and improved method of marking speech signals. The method is based on the use condition Gelder for the speech signal spectrum. Features of the method are its accuracy during decoding of the watermark and independence from the source data.
статья, добавлен 20.01.2017Mathematical modelling methods in the processes of the formation and transmission of the signals of avionic systems. Model of the modulation processes having different initial data. Implementation of the model using the modulation system Simulink.
статья, добавлен 26.06.2016Efficiency of fast Fourier transform in bases of discrete-exponential functions and Vilenkin-Chrestenson functions. Problem to be solved: increasing the computational efficiency of the fast Fourier, transform in the spectral analysis of signals.
статья, добавлен 23.08.2022The 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 30.10.2018The possibility of signal using with rectangular envelope of spectrum for the problems of information transmitting with protection from unauthorized interference. Local minima of the peakfactors in the multidimensional dependence from the initial phases.
статья, добавлен 18.02.2016- 8. 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 The breadth and depth of digital signal processing as one of the most powerful technologies. The most important concepts in statistics and probability. A variety of signal processing techniques. Properties and usage of convolution in several areas.
учебное пособие, добавлен 25.11.2013- 10. Research on noise reduction technology of blade-icing signal based on acoustic emission technology
Using wavelet analysis with five-level decomposition to suppress noise in the signal of icing of wind turbine blades using acoustic emission. Extraction of information about the presence of icing using the signal energy at the second decomposition level.
статья, добавлен 30.08.2021 Examination flow chart of the proposed construction approach. Characteristic features the integral output of the receiver, which gives a correct detection signal due to other channels, which still operate properly and an optimally set threschold.
статья, добавлен 01.11.2014The 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 30.10.2016Development of a system of digital wireless high-speed data transmission with orthogonal frequency division. Mathematical modeling and efficiency in the use of Fourier transform and finite Radon transform in a system with orthogonal frequency division.
статья, добавлен 26.06.2016Chaos-geometric and quantum-dynamic approach that consistently includes a number of quantum models and a improved methods of analysis to solve problems quantitatively complete modeling and analysis of chaotic dynamics of nonlinear processes in atomic.
статья, добавлен 13.01.2017Development of a method of transmission based on systems with decision feedback and the timer signal designs with the fix part of the error interval of the "good" state equation as. The definition of the boundary conditions of its use and effectiveness.
статья, добавлен 26.03.2016Создание программ обработки сигналов для современных научных и технических приложений. Частотный анализ и спектральная оценка. Генерация сигналов в пакете Signal Processing. Свойства дискретной свертки двух сигналов. Визуальное представление сигнала.
лабораторная работа, добавлен 26.05.2015Investigation of small-angle X-ray scattering via registering diffraction signal from a sample in the small-angle area. Application of highly-periodic synchrotron radiation from the accelerator complex VEPP-3 to measuring SAXS with exhibition for 1 ns.
статья, добавлен 13.11.2018Method of fast analog-to-digital conversion (ADC) signals with improved dynamic parameters. Structural diagram of high-speed analog-to-digital Converter and analysis of dynamic range for the Converter. Consistent structural capacity malacostraca ADC.
статья, добавлен 21.06.2016Современные 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 12.09.2014The article is devoted to the researches the accuracy of the measurement of range by the multifrequency phase method. The sources of error of probing signals are identified: instability of frequency probing signal, error of measurement amplitude.
статья, добавлен 27.07.2016Изучение особенностей архитектуры аналого-цифровых микропроцессоров обработки сигналов (Digital Signal Processors) семейства TMS320C1x фирмы Texas Instruments, DSP фирм Motorola и Analog Devices. Характеристика базовой структурной схемы микропроцессора.
лекция, добавлен 29.09.2014The 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 07.11.2018A 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.
статья, добавлен 26.03.2016The concept and basics functional features of the electronic control systems, their internal structure and the relationship between elements. Of the practical application of these devices. The terminal characteristics of electronic control devices.
учебное пособие, добавлен 25.11.2013Analisys of hotelling decision statistics generator using quadrature channel signals decorrelation at the level of structural schemes. Consideration of detection procedures characteristics with and without the use of quadrature components decorrelation.
статья, добавлен 30.07.2016