|
|
Processing of MP3 files for DSP
Římský, Adam ; Sysel, Petr (referee) ; Herman, Ivo (advisor)
This thesys is concerned with create of compressed .MP3 files and their conversion back into PCM format. I describe individual parts of these operations for their maximal understanding by reader. Next part is generally about properties of DSP, their architecture, computation possibilities and about properties of used product by Analog Devices. In last part is showed implantation of decoder in DSP architecture.
|
|
|
Sampling Rate Conversion
Hylmar, Petr ; Vítek, Martin (referee) ; Kozumplík, Jiří (advisor)
This thesis is focused on sampling rate conversion by a rational factor interpolation and decimation and sampling rate coversion by an arbitrary factor interpolation and decimation. There are described methods sampling rate conversion in time domain based on lowpass FIR linear filter and in spectral domain based on zero spectral lines. These methods are created in Matlab programming and tested on particular example. The results of this thesis are sensible parameter lowpass FIR linear filter for sampling rate conversion and discussion success rate used methods.
|
|
|
Sampling Rate Conversion
Chrobák, Martin ; Provazník, Ivo (referee) ; Kozumplík, Jiří (advisor)
This bachelor’s thesis is engaged in design of procedure for change of sampling rate of EKG signal using 3 methods: with positive integer factor D/I, with any factor (I=8) and with any factor (I=16). Sampling rate conversion should be realized from 500 to 360 Hz and from 360 to 500 Hz in time and frequency part of signal. For this, it is used a professional computing interface of MATLAB, which is perfect for processing of signals. The output from this work should be recommendation which filters (with how long impulse characteristics) are useful for this change of sampling rate.
|
|
|
Design of flight test laboratory for ballistic recovery systems testing
Chadima, Bedřich ; Pejchar, Jan (referee) ; Popela, Robert (advisor)
This thesis is focussed on designing of the air drop labradory for testing the balistic recovery systems. The first part of the thesis describes balistic recovery systems, their parts as well as methods of testing this devices. In the second charter there is a description of older vision of a testing device and simple test with the electronics of the testing device. The next step is designing of the new koncept of testing device and the structure analysis of the frame. The product of the thesis is a modular automated testing device, which is able to test balistic recovery systems for aicrafts with the weights between 230 and 1700 kilograms.
|
|
|
Modern methods speech coding for telecommunication network transmission
Zajíček, Marek ; Rajmic, Pavel (referee) ; Smékal, Zdeněk (advisor)
This bachelor's thesis describes the usage of AMR-WB (Adaptive Multi-Rate Wide-Band) codec in telecommunication networks, especially in mobile networks and VoIP technologies. There are also described basic principles of coding and resolved characteristics of this system in detail, especially advantages, disadvantages and the way of practical usage of codecs. This bachelor's thesis was processed by using LATEX application.
|
|
|
Simple speech recognition algorithm for microcontroller
Vedra, Lukáš ; Šrámek, Petr (referee) ; Fedra, Zbyněk (advisor)
The bachelor thesis deals with speech recognition commands on the microcontroller Atmel AVR family. The thesis describes methods of recognition, influence of a sampling frequency selection, lengths of a sequence used, and a number of possible orders with respect to computing speed and memory capacity of the microcontroller. Furthermore, successful acquisition of orders is tested. It also discusses comparison options of an imprint saved in a dictionary command, or more precisely in a database of the microcontroller and a word which has just been uttered. The work also deals with a mechanical system design of the device.
|
|
|
Sampling Rate Conversion
Hylmar, Petr ; Vítek, Martin (referee) ; Kozumplík, Jiří (advisor)
This thesis is focused on sampling rate conversion by a rational factor interpolation and decimation and sampling rate coversion by an arbitrary factor interpolation and decimation. There are described methods sampling rate conversion in time domain based on lowpass FIR linear filter and in spectral domain based on zero spectral lines. These methods are created in Matlab programming and tested on particular example. The results of this thesis are sensible parameter lowpass FIR linear filter for sampling rate conversion and discussion success rate used methods.
|
|
|
Simple speech recognition algorithm for microcontroller
Vedra, Lukáš ; Šrámek, Petr (referee) ; Fedra, Zbyněk (advisor)
The bachelor thesis deals with speech recognition commands on the microcontroller Atmel AVR family. The thesis describes methods of recognition, influence of a sampling frequency selection, lengths of a sequence used, and a number of possible orders with respect to computing speed and memory capacity of the microcontroller. Furthermore, successful acquisition of orders is tested. It also discusses comparison options of an imprint saved in a dictionary command, or more precisely in a database of the microcontroller and a word which has just been uttered. The work also deals with a mechanical system design of the device.
|
|
|
Sampling Rate Conversion
Chrobák, Martin ; Provazník, Ivo (referee) ; Kozumplík, Jiří (advisor)
This bachelor’s thesis is engaged in design of procedure for change of sampling rate of EKG signal using 3 methods: with positive integer factor D/I, with any factor (I=8) and with any factor (I=16). Sampling rate conversion should be realized from 500 to 360 Hz and from 360 to 500 Hz in time and frequency part of signal. For this, it is used a professional computing interface of MATLAB, which is perfect for processing of signals. The output from this work should be recommendation which filters (with how long impulse characteristics) are useful for this change of sampling rate.
|
|
|
Design of flight test laboratory for ballistic recovery systems testing
Chadima, Bedřich ; Pejchar, Jan (referee) ; Popela, Robert (advisor)
This thesis is focussed on designing of the air drop labradory for testing the balistic recovery systems. The first part of the thesis describes balistic recovery systems, their parts as well as methods of testing this devices. In the second charter there is a description of older vision of a testing device and simple test with the electronics of the testing device. The next step is designing of the new koncept of testing device and the structure analysis of the frame. The product of the thesis is a modular automated testing device, which is able to test balistic recovery systems for aicrafts with the weights between 230 and 1700 kilograms.
|
guest ::
