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## Data Acquisition Systems for VLBI

Transactions of IAA RAS, issue 34, 3–46 (2015)

Keywords: very long base interferometry, data acquisition system, the loss of sensitivity, digital signal processing

### Abstract

The family of multi-channel Data Acquisition Systems for radio telescopes is designed by Institute of Applied Astronomy (IAA). The paper presents: results of studies of the parameters of such systems, which are associated with the accuracy of VLBI measurements, ways to reduce the instrumental loss of radiointerferometer, problems of the designing of analog and digital systems and the solutions of this problems. The article describes the structure and characteristics of the analog system P1000 and digital systems P1002M and BRAS, the methods and tools of systems testing. The results of the work of this systems on the radio telescopes of Network "Quasar" and the results of VLBI observations from their participation are presented.

### Citation

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BibTeX
RIS
L. V. Fedotov. Data Acquisition Systems for VLBI // Transactions of IAA RAS. — 2015. — Issue 34. — P. 3–46. @article{fedotov2015, abstract = {The family of multi-channel Data Acquisition Systems for radio telescopes is designed by Institute of Applied Astronomy (IAA). The paper presents: results of studies of the parameters of such systems, which are associated with the accuracy of VLBI measurements, ways to reduce the instrumental loss of radiointerferometer, problems of the designing of analog and digital systems and the solutions of this problems. The article describes the structure and characteristics of the analog system P1000 and digital systems P1002M and BRAS, the methods and tools of systems testing. The results of the work of this systems on the radio telescopes of Network "Quasar" and the results of VLBI observations from their participation are presented.}, author = {L.~V. Fedotov}, issue = {34}, journal = {Transactions of IAA RAS}, keyword = {very long base interferometry, data acquisition system, the loss of sensitivity, digital signal processing}, pages = {3--46}, title = {Data Acquisition Systems for VLBI}, url = {http://iaaras.ru/en/library/paper/1053/}, year = {2015} } TY - JOUR TI - Data Acquisition Systems for VLBI AU - Fedotov, L. V. PY - 2015 T2 - Transactions of IAA RAS IS - 34 SP - 3 AB - The family of multi-channel Data Acquisition Systems for radio telescopes is designed by Institute of Applied Astronomy (IAA). The paper presents: results of studies of the parameters of such systems, which are associated with the accuracy of VLBI measurements, ways to reduce the instrumental loss of radiointerferometer, problems of the designing of analog and digital systems and the solutions of this problems. The article describes the structure and characteristics of the analog system P1000 and digital systems P1002M and BRAS, the methods and tools of systems testing. The results of the work of this systems on the radio telescopes of Network "Quasar" and the results of VLBI observations from their participation are presented. UR - http://iaaras.ru/en/library/paper/1053/ ER -