Volume 485, Number 2, July II 2008
|Page(s)||615 - 622|
|Published online||22 April 2008|
A new signal processing platform for radio astronomy
School of Maths and Physics, University of Tasmania, Private Bag 21, Hobart, TAS 7001, Australia e-mail: firstname.lastname@example.org
Accepted: 7 April 2008
Context. We describe the concept, construction, and testing of TasPGA, a new, versatile digital signal processing device designed for radio astronomy applications.
Aims. A minimalist design philosophy was used to develop a general-purpose radio astronomy instrument based on field programmable gate array (FPGA) technology. The design emphasises reliability and flexibility, facilitating the rapid development of new FPGA firmware for a wide range of experiments.
Methods. Hardware and firmware for TasPGA were designed using software provided by Altium Ltd. and Xilinx Inc. We tested the instrument by implementing a Fourier transform spectrometer capable of dividing 100 MHz of bandwidth into 16 384 channels.
Results. We present data taken with a TasPGA spectrometer at the Mt. Pleasant radio observatory, including the spectra of two astronomical methanol masers.
Key words: instrumentation: miscellaneous / instrumentation: spectrographs / techniques: miscellaneous
© ESO, 2008
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