A5058268220- Information Systems and Technology Applications
- Cybersecurity and Information Systems
- Advanced Computational Techniques in Science and Engineering
- Advanced Scientific Research Methods
- Advanced Signal Processing Techniques
- Aerospace, Electronics, Mathematical Modeling
- VLSI and Analog Circuit Testing
- Image and Signal Denoising Methods
- Advanced Steganography and Watermarking Techniques
- Cellular Automata and Applications
- Error Correcting Code Techniques
- Millimeter-Wave Propagation and Modeling
Lviv Polytechnic National University
2014-2023
National University
2022
The most common issue of a speech signals analisys and artificial intelligence systems development is determining temporal frequency charactristics. That’s because any undetermined signal defined as nonlinear object. But it always possible to select time interval from the with given discretization period. Such an called quasistationary interval.The in combination quality characteristics can be used build parametric model signal. As result, such will very helpful for solving different...
Based on the combined usage of developed methods sustainable segmentation and local magnitudes proposed a new scheme watermark embedding into audio signals. The signals watermarking ensures reliability several types attacks, such as noise, cropping, resampling, re-quantization, compression low frequency filtering.
Wireless Local Area Networks (WLANs) are widely used and their number is constantly increasing. Therefore, the creation of models for detailed study, even more, so automation this process an urgent task. As example research object, we chose Media Access Control (MAC) sublayer Carrier Multiple with Collision Avoidance (CSMA/CA) access scheme. A simplified version state transition diagram was suggested by us, analytical model based on a system differential equations developed. Automation...
The current stage of telecommunication technologies development is characterized by the rapid growth use wireless in access networks and requirements for its quality. bottleneck that significantly reduces bandwidth each subscriber connection total local network shared among active members technology used. management sub-layer to physical environment responsible this architecture. main method used at Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) scheme. This work devoted...