Mathematical modeling of processes in the sound field of premises with speech notification

Modeling of systems and processes, Journal Year: 2023, Volume and Issue: 16(3), P. 21 - 30

Published: Oct. 18, 2023

The problem of improving the intelligibility sound signal sounder, taking into account background noise and interference, is considered. Mathematical modeling processes in field premises carried out influence on speech structure formed by fire alarms. important components alarms, which affect signal, are takes level noise, can complicate audibility reduce its quality. It also taken that direct reflected component parts overall environment. represented graphically. models given to determine density energy. figures show a scheme for calculating interference useful during operation one as well graphs occur three sounders. A general approach determining from alerts considered evaluation used software package makes it possible clearly divide incoming signals be various fields.

Language: Английский

APPLICATION OF SHIFT FUNCTION DISTANCE METRICS FOR NEAR PERIODIC ANALYSIS OF SATELLITE IMAGES

Published: April 14, 2025

To this day, the world community faces problems of emergencies, response to them, as well modeling and forecasting development such processes. Processing data on causes emergencies is critical ensure safety population, minimize consequences devastating events caused by sources dangerous situations. Analyzing accumulated historical their makes it possible identify study systematic factors in dynamics emergency development. One main causing tropical cyclones. These natural phenomena are characterized strong winds, significant precipitation and, coastal regions, storm surges. At present, observation cyclones mainly carried out satellite remote sensing methods, which poses a challenge researchers implement apply methods media processing modeling. Most studies aimed at analyzing motion cyclone, i.e., its terms speed direction motion. This paper discusses approach typhoon structure based near periodic analysis. considers application distance metrics underlying shift functions - tool for almost analysis with an ordered argument. Some shear function presented images cyclone Nanmandol analyzed under different estimation metrics. The results showed independence obtained periods from type applied metric function.

Language: Английский

System analysis of acoustic properties of voice sirens

Modeling of systems and processes, Journal Year: 2024, Volume and Issue: 17(4), P. 42 - 53

Published: Nov. 16, 2024

The acoustic properties of fire alarm systems are considered. analysis and correction the existing system classification has been carried out. Shortcomings have identified in requirements for safety monitoring voice alerts certification testing procedure fire-fighting alarms. completeness linguistic information, which is basic standard required information evacuees case fire, analyzed. structure sound field room considered, taking into account interference during operation systems. For real alarms, necessity using passport data justified order to obtain characteristics such alarms as a source not only direct, but also reflected sound. These can be used calculate premises, well about warning evacuation control main factors influencing early identified, their assessment systematization. To form results new methods design management developed, disadvantages calculating displayed

Language: Английский