@ARTICLE{Lewandowski_Marcin_Research_2016,
 author={Lewandowski, Marcin and Walczak, Mateusz and Karwat, Piotr and Witek, Beata and Karłowicz, Paweł},
 volume={vol. 41},
 number={No 4},
 journal={Archives of Acoustics},
 pages={773-781},
 howpublished={online},
 year={2016},
 publisher={Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics},
 abstract={A new ultrasound digital transcranial Doppler system (digiTDS) is introduced. The digiTDS enables diagnosis of intracranial vessels which are rather difficult to penetrate for standard systems. The device can display a color map of flow velocities (in time-depth domain) and a spectrogram of a Doppler signal obtained at particular depth. The system offers a multigate processing which allows to display a number of spectrograms simultaneously and to reconstruct a flow velocity profile. The digital signal processing in digiTDS is partitioned between hardware and software parts. The hardware part (based on FPGA) executes a signal demodulation and reduces data stream. The software part (PC) performs the Doppler processing and display tasks. The hardware-software partitioning allowed to build a flexible Doppler platform at a relatively low cost. The digiTDS design fulfills all necessary medical standards being a new useful tool in the transcranial field as well as in heart velocimetry research.},
 type={Artykuły / Articles},
 title={Research and Medical Transcranial Doppler System},
 URL={http://www.czasopisma.pan.pl/Content/103553/PDF/aoa-2016-0074.pdf},
 doi={10.1515/aoa-2016-0074},
 keywords={Doppler system, digital signal processing, hardware-software partitioning, field programmable gate arrays},
}