THE ADVANTAGE OFTHEWAVELET TRANSFORM IN PROCESSING OF SPEECH SIGNALS

This work deals with basic theory of wavelet transform and multi-scale analysis of speech signals, briefly reviewed the main differences between wavelet transform and Fourier transform in the analysis of speech signals. The possibilities to use the method of wavelet analysis to speech recognition systems and its main advantages. In most existing systems of recognition and analysis of speech sound considered as a stream of vectors whose elements are some frequency response. Therefore, the speech processing in real time using sequential algorithms requires computing resources with high performance. Examples of how this method can be used when processing speech signals and build standards for systems of recognition.Key words: digital signal processing, Fourier transform, wavelet analysis, speech signal, wavelet transform

SELECTION OF CONTROLLABLE PARAMETERS OF THE BINARY DATA ARRAY DETECTION ALGORITHM IN THE INTEGRATED MANAGEMENT SYSTEM

The article discusses the selection of parameters for the algorithm for determining binary data arrays included in the control system, developed by the authors using independent substitution methods. Based on the analysis of the algorithms of non-cryptographic hash functions, the hash function based on the linear matching method was selected as the basis for independent substitution methods. Simplified schemes of algorithms developed for creating and comparing identifiers using a set of basic hash functions are given. An array of binary data was selected and based on the appropriate values for the size of the divisible blocks and the number of basic hashfunctions used for independent substitutions. The selection of binary data arrays in information systems integrated into the management system was done for the purpose of intellectual processing of incoming data. The properties of the array of data entering integrated systems are studied. The authors conducted experimental tests in the selected direction and presented the results of similarity assessment measurements for various parameters of the identification algorithm. In addition, the article conductedexperiments on the object of study using the selected mathematical model, based on the analytical conclusions. Initiator elements are studied and analyzed using a set of hash functions. An algorithm for comparison of selected identifiers has been developed. A generation algorithm has been developed to demonstrate and test the proposed solution. Algorithms based on analysis and experiments, and methods for selecting binary data arrays using the ash function have been experimentally tested. Based on the results, the indicators are shown. Based on the results obtained, the analytical conclusions and problem solutions of the research work were recognized

RESEARCH OF AERODYNAMIC MODES OF THE CLEANING SECTION OF THE DRYER DRUM

In the technology of primary processing of cotton, there is a process of drying raw cotton. When this process is carried out, a mixture of a drying agent (hot air) with dust and light small trash impuritiesis formed in the drying drum. The task of these theoretical studies is to substantiate the variant of suction and purification of the air flow with trash impurities formed in the process of drying raw cotton, with the receipt of the main parametric characteristics and their boundary indicators.Key words: raw cotton, drying, drying drum, trash, dust, cleaning, fluid movement.

MAIN CHARACTERISTICS ELECTRIC VIBRATORS BASED ON A LINEAR MOTOR WITH PERMANENT MAGNETS

The design of an electric vibrator created on the basis of a linear motor with permanent magnets is considered, and the calculation of the magnetic field and the electromagnetic force acting on the motor armature is performed by the finite element method. The results of experimental studies confirming the reliability of the obtained calculated data are presented]. The purpose of this work is to study the distribution of the magnetic field and the electro-magnetic forces in a coaxial-linear permanent magnet electric motor (PM), which is the basis for the creation of avibration installationKeywords: vibration, magnets, magnetic induction, stator winding, electric vibrator

ECONOMIC AND MATHEMATICAL MODEL OF CONTAINER BLOCK-TRAINS

The article is devoted to the study of the operation of the container terminal of the Tashkent-Commodity station during the turnover of the container block-train. An organizational and technological model of the container turnover in the form of a network graph is considered, and the technological capacity of the terminal is calculated by modeling operations with containers in the form of a step-by-step algorithm. The resulting methodology makes it possible to predict the duration of the turnover of a block-train and is a kind of imitation of the Uzbek railway network from the point of view of launching a container block-train.Keywords: cargo transportation, admission,delivery, loading, unloading, container, terminal, block-train, algorithm

OBTAINING HIGH-CLASS COTTON FIBER DUE TO MODERNIZATION OF DRYER DRUM BRAND SBO

The influence of cleaning equipment on the production of cotton fiber of the “oliy” (high) and “yashi” (good) classes has been studied. The results of experiments carried out at a number of ginneries of the republic and the efficiency of cleaning their equipment have been determined. The need for research work on the creation of devices for separating dust generated in the drying drum has been substantiated

MODERNIZATION OF THE ROLLED GIN REGENATION SECTION

Methods for improving the area of regeneration of roller gin in the process of processing long-staple cotton have been studied. At present, in the process of processing long-staple cotton of the selection variety Surkhan-9 in the regeneration section of the DV-1M roller machine, the choice of cell sizes for removing exfoliated seeds from the fiber is being studied and substantiated by experimental methods.Keywords: long fiber, roll gin, regeneration, variety, pile drum, mesh, fixed blade, forging drum, grill

RESULTS OF PRODUCTION TESTS OF A COTTON CLEANING UNIT WITH A VERTICAL ARRANGEMENT OF FINE LITTER PURIFICATION SECTIONS

The article presents the test results of a cotton cleanerwith a vertical arrangement of sections for cleaning from fine litter. The technological and qualitative comparative indicators of the existing and proposed technologies have been obtained, which shows a significant advantage of the proposed technology for cleaning cotton from trash impurities.Key words: small trash impurities, vertical method, technology, unit, quality indicators, fiber, energy-saving, resource-saving

ANALYSIS OF FACTORS AFFECTING THE PERFORMANCE OF THE VERTICAL COTTON CLEANER

This article analyzes the process of cleaning cotton from small trash impurities and the requirements for each equipment, the influence of cotton loosening in the cotton cleaning zone and factors affecting its efficiency, studied the factors affecting the performance of a modernized cotton cleaner, where cotton moves along the pegs and mesh surface vertically and parallel.Key words:cotton, small trash impurities, peg drum, mesh surface, cleaner, zone, vibration, moisture, productivity, testing.

THE MAIN ELEMENTS OF THE STRATEGIC REGULATION OF THE SAFETY OF HYDRAULIC STRUCTURES

As a result of the theoretical and experimental experiments carried out in this research work, research was carried out to prevent possible expected violations in hydraulic structures, as well as to prevent the occurrence of possible hazards that can lead to adverse events. The safety of hydraulic structures requires a lot of attention. In the process of analyzing the risks and factors associated with adverse events, as well as the management of hydraulic engineering facilities, it will be necessary to conduct practical work.Keywords:technogen, hydraulic engineering, construction, project, safety, object, event, risk, analysis, design, construction