Ngā hua rapu - statistical signal processing

The subject of this study is the development of a statistical synthesis methodology and analysis methods for processing stochastic signals in multi-antenna radio direction finders. The aim of this study is to improve the accuracy, stability, and adaptability of these systems under changing operating...

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Introduction. Parametric spectral estimation methods provide an improved level of frequency resolution compared to matched signal processing conventionally used in radar technology. This renders these methods promising for application in cases where the sample size of a spatial or temporal signal is...

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This article proposes a strategy for the visual characterization of power quality in big data analysis contexts, culminating in the development of a visualization tool based on higher-order statistics, which exhibits an efficiency between 83.33% and 100% in detecting 50 Hz synthetic and real-life si...

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Biomechanics of motor actions solves the problems of analysis of external motor events - kinematic and dynamic movement parameters. Inertial measurement devices such as gyroscope and accelerometer are used for biomechanical analysis of human movements. The paper describes an algorithm for analysis o...

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The article deals with the problems of frequency stabilization of generators in distributed information-measuring systems on the basis of the static frequency stabilization method. The examples of similar systems are given. The necessity to ensure high stability of signal frequency generated by subs...

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The nature of the causes of prerequisites for flight accidents due to meteorological conditions has remained unchanged for many years. For the effective operation of aviation, it is necessary to solve the issues of the timely detection of weather hazards and the identification of their intensity. Th...

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Healthcare professionals routinely use audio signals, generated by the human body, to help diagnose disease or assess its progression. With new technologies, it is now possible to collect human-generated sounds, such as coughing. Audio-based machine learning technologies can be adopted for automati...

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The effective approach to the estimation of athletes coordination abilities based on the reproducibility analysis of the electromyographic patterns of motion tests under the influence of external destabilizing factors is proposed. The following factors are chosen as external perturbing ones: disabli...

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<p>El siguiente trabajo tiene la finalidad de aplicar algunas de las generalidades que involucra el procesamiento estadístico de<br />orden superior al monitoreo del estado de las máquinas rotatorias, a partir del sensado de las vibraciones que esta genera.<br />Básicamente se trab...

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Introduction. The success and competitiveness of any enterprise are facilitated by the introduction of innovative approaches and continuous improvement of technological processes. In addition, it is not enough simply to modernize the equipment. A comprehensive approach to the optimization of technol...

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Satellite radar altimeters play a key role in numerous space missions for the remote Earth sensing. The data they provide are used in solving various fundamental and applied problems of geophysics, oceanography, meteorology, etc. In many modern measuring systems the altimeter data is processed in se...

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Fractal dimension is a statistical index of complexity to characterize geometries. It is commonly used in signal processing in different fields of research. There, observations of dynamic systems can be translated into numerical values allowing us to classify signals into groups of similar character...

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Historical buildings represent invaluable heritage from the past and therefore their protection is a very important task. Assessment of their condition must not cause damage accumulation, thus the least possible volume removed from the structure is essential. As many historical buildings in the Czec...

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Electromyographic noise is one of the most common noises in electrocardiogram. In case of several electrocardiogram leads, electromyographic noise affects each lead to different extent. It can be taken into account when developing algorithms for multilead electrocardiogram record processing. However...

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Although the emotions and learning based on emotional reaction are individual-specific, the main features are consistent among all people. Depending on the emotional states of the persons, various physical and physiological changes can be observed in pulse and breathing, blood flow velocity, hormona...

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This research article is devoted to studying and applying polarization selection for navigation objects in difficult atmospheric conditions. It provides a novel application of Stokes parameters in radar signal processing for navigation objects, validated by experimental data. The main emphasis is o...

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The effect of the elbow motion kinematic parameters (angular displacement, velocity, and acceleration) on the surface electromyographic (EMG) signal of the biceps of the arm under the elbow motion execution with different load is analyzed. The dependences of the frequency and amplitude parameters of...

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Classification is one of the most prominent modeling approaches that can be successfully applied in model-based medical support systems to make more accurate diagnostic decisions. The classification literature indicates that numerous classifiers with different characteristics have been developed and...

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