Petar Boyanov | Shumen University (original) (raw)
Part-time Assistant Professor at the Department of Communication and Computer Engineering, Faculty of Technical Sciences - 01.09.2011 - until 31.08.2012.
Assistant Professor at the Department of Communication and Computer Engineering, Faculty of Technical Sciences - from 03.09.2012 to 30.06.2016.
Chief Assistant in the Department of Communication and Computer Engineering, Faculty of Technical Sciences - 01.07.2016 to 31.05.2018.
Associate Professor at the Department of Security Systems Management, Faculty of Technical Sciences - since 01.06.2018 - 8.12.2022.
Professor of Communication and Computer Technology (Communication networks and systems) at Department "Communication and Computer Engineering", Faculty of Technical Sciences, Konstantin Preslavsky University of Shumen - since 03.01.2023 - until now.
Phone: +359896780453
Address: Shumen, Bulgaria
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Papers by Petar Boyanov
In this paper a summarized educational simulation the local area network of academic departments ... more In this paper a summarized educational simulation the local area network of academic departments with configured ftp serveris made. Most of the network system administrators, security professionals, network architects and IT specialists have to use ftp server in order to share different or specific volumes of data for each user. Nowadays, the free of charge software network program called Cisco Packet Tracer is used to design and simulate various types of local and wide area computer networks.
A model of factor analysis is developed in the process of designing of complex optical systems. F... more A model of factor analysis is developed in the process of designing of complex optical systems. Factor analysis is indispensable in designing of photometric and spectrophotometric optical-electronic devices which consist of entrance-scanning system by space, lens with inner focusing, collimator objective which ensure the entering of a parallel bundle of rays over a dispersing diffraction grate over a wave length, a chamber lens and respectively, a sensor. These and similar optical systems require higher degree of elimination of chromatic aberration, etc. which ensures good quality of the optical system and of the obtained results.
The energy efficiency of systems for primary processing of signals in opto-electronic devices is ... more The energy efficiency of systems for primary processing of signals in opto-electronic devices is analyzed for the case of identification and study of remote objects against a bright background and under low-contrast conditions. A criterion is determined for evaluating the energy efficiency of the major unit of the system for primary signal processing-the optic system, and some expressions are derived, relating the value of the signal-to-noise ratio at the device's input with these criteria (amplification factor) and other "ideal" or "real" optic systems' parameters. The specific thing here is the operation of the system for primary processing of signals when the value of recorded contrast equals 1 percent or less. As an evaluation criterion for the energy efficiency of this system, the signal-to-noise ratio is used. Comparative evaluation of various systems for primary processing of signals operating under low-contrast conditions and specific values of the signal-to-noise ratio is performed. The operation analysis for the system for primary processing of information (signals) under low-contrast conditions is performed accounting for the impact of the optic system. The evaluation criterion for the energy efficiency of the major unit of the system for primary processing of information (the optic system) is the amplification factor, which determines the limit value for the signal-to-noise ratio at the output of the optic-electronic device. The assumption is made that the flow, which determines the circle's area, is uniformly distributed, which does not cause significant errors in evaluating the energy efficiency of the optic-electronic system.
Vol. 16 No. 1 (2019): Journal Scientific and Applied Research
Vol. 22 No. 1 (2022): Journal Scientific and Applied Research
Vol. 23 No. 1 (2022): Journal Scientific and Applied Research
Vol. 15 No. 1 (2019): Journal Scientific and Applied Research
In this paper implementation of SYN Flood cyber attack in the computer network and systems is per... more In this paper implementation of SYN Flood cyber attack in the computer network and systems is performed.
In this paper analysis and monitoring of network traffic in the process of connecting to industri... more In this paper analysis and monitoring of network traffic in the process of connecting to industrial Siemens controllers in the Faculty of Technical Sciences is made.
In this paper a summarized educational simulation the local area network of academic departments ... more In this paper a summarized educational simulation the local area network of academic departments with configured ftp serveris made. Most of the network system administrators, security professionals, network architects and IT specialists have to use ftp server in order to share different or specific volumes of data for each user. Nowadays, the free of charge software network program called Cisco Packet Tracer is used to design and simulate various types of local and wide area computer networks.
A model of factor analysis is developed in the process of designing of complex optical systems. F... more A model of factor analysis is developed in the process of designing of complex optical systems. Factor analysis is indispensable in designing of photometric and spectrophotometric optical-electronic devices which consist of entrance-scanning system by space, lens with inner focusing, collimator objective which ensure the entering of a parallel bundle of rays over a dispersing diffraction grate over a wave length, a chamber lens and respectively, a sensor. These and similar optical systems require higher degree of elimination of chromatic aberration, etc. which ensures good quality of the optical system and of the obtained results.
The energy efficiency of systems for primary processing of signals in opto-electronic devices is ... more The energy efficiency of systems for primary processing of signals in opto-electronic devices is analyzed for the case of identification and study of remote objects against a bright background and under low-contrast conditions. A criterion is determined for evaluating the energy efficiency of the major unit of the system for primary signal processing-the optic system, and some expressions are derived, relating the value of the signal-to-noise ratio at the device's input with these criteria (amplification factor) and other "ideal" or "real" optic systems' parameters. The specific thing here is the operation of the system for primary processing of signals when the value of recorded contrast equals 1 percent or less. As an evaluation criterion for the energy efficiency of this system, the signal-to-noise ratio is used. Comparative evaluation of various systems for primary processing of signals operating under low-contrast conditions and specific values of the signal-to-noise ratio is performed. The operation analysis for the system for primary processing of information (signals) under low-contrast conditions is performed accounting for the impact of the optic system. The evaluation criterion for the energy efficiency of the major unit of the system for primary processing of information (the optic system) is the amplification factor, which determines the limit value for the signal-to-noise ratio at the output of the optic-electronic device. The assumption is made that the flow, which determines the circle's area, is uniformly distributed, which does not cause significant errors in evaluating the energy efficiency of the optic-electronic system.
Vol. 16 No. 1 (2019): Journal Scientific and Applied Research
Vol. 22 No. 1 (2022): Journal Scientific and Applied Research
Vol. 23 No. 1 (2022): Journal Scientific and Applied Research
Vol. 15 No. 1 (2019): Journal Scientific and Applied Research
In this paper implementation of SYN Flood cyber attack in the computer network and systems is per... more In this paper implementation of SYN Flood cyber attack in the computer network and systems is performed.
In this paper analysis and monitoring of network traffic in the process of connecting to industri... more In this paper analysis and monitoring of network traffic in the process of connecting to industrial Siemens controllers in the Faculty of Technical Sciences is made.