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Computer Remote Control Using Cell Phone
Kolařík, Jan ; Ševcovic, Jiří (referee) ; Pospíchal, Petr (advisor)
The result of my work is an appilcation, which enables to control videos and music by a cell phone, which has an operating system Android 2.1. The application is divided into two parts, the server, which runs on PC, and the client, which runs on the cell phone. For description of managing the applications is used JavaScript.
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The USB Oscilloscope and Logic Analyzer with a Microprocessor
Pešl, Jiří ; Magát, Martin (referee) ; Šteffan, Pavel (advisor)
The content of this bachelor thesis is design of electronic measurement and diagnostic device to a computer or any other portable device as are modern mobile phones and PDAs. Designed system will be measure analog periodical signals in time in currently used ranges and discrete logic signals. Signals will be restored and displayed on the screen of any other device. Wherewith designed device will be communicate through USB 2.0 or Bluetooth interface.
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Algorithms for adaptive frequency hopping spread spectrum systems
Zunt, Tomáš ; Burda, Karel (referee) ; Pust, Radim (advisor)
This master's thesis deal the system, which use the Frequency Hopping (FH). Is explained principle those techniques and her benefits and disadvantages. Follows description techniques Adaptive Frequency Hopping (AFH) that used the Bluetooth. Follows description other method for setup hopset such as Dynamic Frequency Hopping (DFH), which used standards 802.22. 22. Is an emerging standard for Wireless Regional Area Networks (WRAN) operating on a license-exempt and non-interference basis in the spectrum allocated to TV broadcast services (between 47–910 MHz). Other method introduces the Adaptive Frequency Rolling (AFR), a particular instance of frequency hopping (FH) that enables the collocated WPANs to cooperate and avoid the self-interference. The AFR uses as input solely the observed packet error rate (PER) and it does not require any exchange of information among the collocated WPANs. The effect of the FR over a longer time interval is that the WPANs use the complete set of disposable channels in an implicit time-division and cooperative manner. Last method described in this Thesis is Dynamic Adaptive Frequency Hopping (DAFH). The basic strategy applied in DAFH is a binary search for a hopset that offers smaller PER. The set of admissible hopsets depends on the total number of available channels and the maximal level of binary divisions. Practical part of the master's thesis describes proposal model AFH, with usage of Matlab Simulink programme. In thesis are described function each blocks a their setting. Simulation parameters can change in simple graphic interface. The model is able to simulate influence of static and dynamic interference in transmission band of two communicating devices.
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The USB Oscilloscope and Logic Analyzer with a Microprocessor
Pešl, Jiří ; Magát, Martin (referee) ; Šteffan, Pavel (advisor)
The content of this bachelor thesis is design of electronic measurement and diagnostic device to a computer or any other portable device as are modern mobile phones and PDAs. Designed system will be measure analog periodical signals in time in currently used ranges and discrete logic signals. Signals will be restored and displayed on the screen of any other device. Wherewith designed device will be communicate through USB 2.0 or Bluetooth interface.
|
|
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Computer Remote Control Using Cell Phone
Kolařík, Jan ; Ševcovic, Jiří (referee) ; Pospíchal, Petr (advisor)
The result of my work is an appilcation, which enables to control videos and music by a cell phone, which has an operating system Android 2.1. The application is divided into two parts, the server, which runs on PC, and the client, which runs on the cell phone. For description of managing the applications is used JavaScript.
|
|
|
Algorithms for adaptive frequency hopping spread spectrum systems
Zunt, Tomáš ; Burda, Karel (referee) ; Pust, Radim (advisor)
This master's thesis deal the system, which use the Frequency Hopping (FH). Is explained principle those techniques and her benefits and disadvantages. Follows description techniques Adaptive Frequency Hopping (AFH) that used the Bluetooth. Follows description other method for setup hopset such as Dynamic Frequency Hopping (DFH), which used standards 802.22. 22. Is an emerging standard for Wireless Regional Area Networks (WRAN) operating on a license-exempt and non-interference basis in the spectrum allocated to TV broadcast services (between 47–910 MHz). Other method introduces the Adaptive Frequency Rolling (AFR), a particular instance of frequency hopping (FH) that enables the collocated WPANs to cooperate and avoid the self-interference. The AFR uses as input solely the observed packet error rate (PER) and it does not require any exchange of information among the collocated WPANs. The effect of the FR over a longer time interval is that the WPANs use the complete set of disposable channels in an implicit time-division and cooperative manner. Last method described in this Thesis is Dynamic Adaptive Frequency Hopping (DAFH). The basic strategy applied in DAFH is a binary search for a hopset that offers smaller PER. The set of admissible hopsets depends on the total number of available channels and the maximal level of binary divisions. Practical part of the master's thesis describes proposal model AFH, with usage of Matlab Simulink programme. In thesis are described function each blocks a their setting. Simulation parameters can change in simple graphic interface. The model is able to simulate influence of static and dynamic interference in transmission band of two communicating devices.
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