Petr Dostalek

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This paper extends results about stability and stabilization of a retarded quasipolynomial obtained using the Mikhaylov criterion earlier. Retarded quasipolynomials appear as numerators and denominators of linear time-invariant time-delay systems (LTI-TDS). A LTI-TDS system of retarded type (destitute of distributed delays) is said to be stable if all roots(More)
The computer control is one large area of applied informatics. Today´s control systems are mostly based on the different types of computers and their communication in more level systems is also defined by the computer communications rules. Practical laboratory training is very important part of education process in the area of technical engineering. It is(More)
This paper deals with direction of sound wave arrival determination using time-delay estimation and beamforming methods with utilization of static microphone array with fixed geometry configuration. Theoretical part describes main principle of both methods and possibility of program implementation. Experimental part proposes hardware design of the sensory(More)
Paper deals with design and implementation of portable data acquisition unit based on 8-bit microcontroller Freescale 68HC908GP32 in process control and supervision applications. Its hardware design is adopted to fulfill high reliability and immunity against industrial environment, high precision and compact dimensions. Communication with supervision system(More)
This paper presents possibility of utilization of Advantech PCI-1716 data acquisition card in system for audio signal frequency analysis. Developed software environment provides extended functionality such as window function selection (rectangular, triangular, Hamming, Hanning and Blackman) and window overlapping. Analyzed signals can be visualized in(More)
This contribution deals with employing 8 and 16-bit FreeScale microcomputers in process control with a view to implementation standard and modern control methods such as adaptive and robust controllers. Although microcomputers have limited amount of memory and computing power it is possible to successfully use them in this area and bring us improved(More)
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