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## Project of Direct Sampling Backend for Radio Astronomy

Transactions of IAA RAS, issue 46, 94–99 (2018)

E. V. Nosov, L. V. Fedotov. Project of Direct Sampling Backend for Radio Astronomy // Transactions of IAA RAS. — 2018. — Issue 46. — P. 94–99. @article{nosov2018, abstract = {Development tendencies of Data Acquisition Systems for radio telescopes are considered. The concept of digital system for radio telescopes of the VLBI Network “Quasar” is offered. In it the analog-to-digital converter is switched on directly on an output of the low-noise amplifier of the radio-receiving device and is placed on the antenna. It allows to refuse analog frequency conversion and the related shortcomings. Advantages, structure and the principles of system operation of Direct Sampling Backend of radio-astronomical signals are given.}, author = {E.~V. Nosov and L.~V. Fedotov}, doi = {10.32876/ApplAstron.46.94-99}, issue = {46}, journal = {Transactions of IAA RAS}, keyword = {ADC, DSP, digital backend, FPGA, radio astronomy, VLBI}, pages = {94--99}, title = {Project of Direct Sampling Backend for Radio Astronomy}, url = {http://iaaras.ru/en/library/paper/1880/}, year = {2018} } TY - JOUR TI - Project of Direct Sampling Backend for Radio Astronomy AU - Nosov, E. V. AU - Fedotov, L. V. PY - 2018 T2 - Transactions of IAA RAS IS - 46 SP - 94 AB - Development tendencies of Data Acquisition Systems for radio telescopes are considered. The concept of digital system for radio telescopes of the VLBI Network “Quasar” is offered. In it the analog- to-digital converter is switched on directly on an output of the low- noise amplifier of the radio-receiving device and is placed on the antenna. It allows to refuse analog frequency conversion and the related shortcomings. Advantages, structure and the principles of system operation of Direct Sampling Backend of radio-astronomical signals are given. DO - 10.32876/ApplAstron.46.94-99 UR - http://iaaras.ru/en/library/paper/1880/ ER -