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Power line disturbance model
Végh, Zoltán ; Zeman, Václav (referee) ; Mlýnek, Petr (advisor)
Requirements for existing PLC systems are very high (services requiring data rates higher than 1 Mbit/s). To meet these requirements, you must have a model of with real PLC environment. This document provides an overview of basic properties of noise in PLC systems, focusing mainly on the colored background noise, narrowband interferers, and various types of impulive noise in the PLC. Furthermore, different models of interference created by different literatures and simulation models were created with any significant adverse environmental effects of the PLC.
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The mutual conversion of the OTDM and WDM systems
Végh, Zoltán ; Šifta, Radim (referee) ; Münster, Petr (advisor)
The aim of the diploma thesis is to analyze the WDM and OTDM optical telecommunication networks and the possibility of conversion between these two multiplexing methods. In the first chapter were mentioned the basics of optical communication. The next chapter describes the optical fiber. Specifically, their types, linear and nonlinear optical characteristics whitch are limiting transmission e.g. attenuation, dispersion, refraction, FWM, SPM and XPM. Followed by a general description of the multiplexing systems used in optics and individual elements used in various multiplexing systems. The last chapter was devoted to the design of the OTDM - WDM conversion model.
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The Noise Database
Végh, Zoltán ; Špiřík, Jan (referee) ; Hudec, Antonín (advisor)
n semestral thesis proposed a system for recording acoustic signals, which in this case presented a concrete noise, and I have been tested software has to improve the quality of recorded samples. This system consists of several blocks, such as signal pre-processing blocks, to formulate requirements for the improvement of recordings, such as sampling frequency and bit resolution. The first step is therefore to establish settings for the recording device. Then followed the reprocessing of signals such as filtration and separation.
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The Noise Database
Végh, Zoltán ; Špiřík, Jan (referee) ; Hudec, Antonín (advisor)
n semestral thesis proposed a system for recording acoustic signals, which in this case presented a concrete noise, and I have been tested software has to improve the quality of recorded samples. This system consists of several blocks, such as signal pre-processing blocks, to formulate requirements for the improvement of recordings, such as sampling frequency and bit resolution. The first step is therefore to establish settings for the recording device. Then followed the reprocessing of signals such as filtration and separation.
|
|
|
Power line disturbance model
Végh, Zoltán ; Zeman, Václav (referee) ; Mlýnek, Petr (advisor)
Requirements for existing PLC systems are very high (services requiring data rates higher than 1 Mbit/s). To meet these requirements, you must have a model of with real PLC environment. This document provides an overview of basic properties of noise in PLC systems, focusing mainly on the colored background noise, narrowband interferers, and various types of impulive noise in the PLC. Furthermore, different models of interference created by different literatures and simulation models were created with any significant adverse environmental effects of the PLC.
|
|
|
The mutual conversion of the OTDM and WDM systems
Végh, Zoltán ; Šifta, Radim (referee) ; Münster, Petr (advisor)
The aim of the diploma thesis is to analyze the WDM and OTDM optical telecommunication networks and the possibility of conversion between these two multiplexing methods. In the first chapter were mentioned the basics of optical communication. The next chapter describes the optical fiber. Specifically, their types, linear and nonlinear optical characteristics whitch are limiting transmission e.g. attenuation, dispersion, refraction, FWM, SPM and XPM. Followed by a general description of the multiplexing systems used in optics and individual elements used in various multiplexing systems. The last chapter was devoted to the design of the OTDM - WDM conversion model.
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