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1
Content available Low power 9-bit pipelined A/D and 8-bit self-calibrated D/A converters for a DSP system
100%
Wawryn K. , Suszynski R.
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tom Vol. 61, nr 4
979--988
EN
A low power, low voltage current mode 9 bit pipelined a/d converter and 8 bit self-calibrated d/a converter to interface a DSP system are presented in the paper. The a/d converter is built of 1.5 bit stages with digital error correction logic. The d/a converter is composed of 3 LSBs fine and 5 MSBs coarse current mode converters. The a/d and d/a converters were designed in 0.35 μm technology, then fabricated to verify the proposed concept. The performances of both converters are compared to the performances of known converter structures. The main advantages of the proposed converters are low power consumption and small chip area.
2
Content available Rapid prototyping of algorithmic A/D converters based on FPAA devices
100%
Wawryn K. , Suszynski R.
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nr 3
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Content available Rapid prototyping of algorithmic A/D converters based on FPAA devices
100%
Suszynski R. , Wawryn K.
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2013
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tom Vol. 61, nr 3
691--696
EN
A rapid prototyping method for designing mixed signal systems has been presented in the paper. The method is based on implementation of the field programmable analog array (FPAA) to configure and reconfigure mixed signal systems. A serial algorithmic analog digital converter has been used as an example. Three converter architectures have been selected and implemented FPAA device. To verify and illustrate converters operation and prototyping capabilities, implemented converters have been excited by a sinusoidal signal. Analog sinusoidal excitations, digital responses and sinusoidal waveforms after reconstruction are presented.
4
Ocena potrzeb szkoleniowych w Polsce
100%
Suszynski A. , Suszynski R.
Folia Universitatis Agriculturae Stetinensis. Oeconomica
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2007
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tom 49
195-202
5
Content available An efficient algorithm for determining positions of astronomical objects in the Deep Sky Object pictures
80%
Suszynski R. , Wawryn K. , Dziębowski M.
Bulletin of the Polish Academy of Sciences. Technical Sciences
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2015
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tom Vol. 63, nr 3
679--684
EN
The article presents an algorithm for digital image processing of astronomical objects in order to effectively determine the position of these objects. The proposed method has been optimized due to its effectiveness of removing noise and distortion caused by atmospheric turbulence and imperfections in long exposure photography of astronomical objects. This solution is ready for implementation in a system for automatic identification of stars in the recorded images. Such a system is designed for GoTo circuits at telescope’s drives, which can automatically point a telescope to astronomical objects. The method was verified by simulation in MATLAB program on real images of astronomical objects.
6
Content available An efficient algorithm for determining positions of astronomical objects in the Deep Sky Object pictures
50%
Suszynski R. , Wawryn K. , Dziebowski M.
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