PuMa, a digital Pulsar Machine
Open Access
- 15 April 2002
- journal article
- Published by EDP Sciences in Astronomy & Astrophysics
- Vol. 385 (2) , 733-742
- https://doi.org/10.1051/0004-6361:20020123
Abstract
We have designed and constructed PuMa, a pulsar machine that has both a baseband recording and a digital filterbank mode. Its design is based on the use of digital signal processors (DSPs). Their operation is controlled by software, which makes PuMa reconfigurable, flexible and easy to operate. The maximum number of channels in the digital filterbank mode is 32 768 over a bandwidth of 80 MHz. This makes PuMa suitable for pulsar observations at low sky frequencies. The maximum bandwidth in baseband recording mode is two times 10 MHz. The machine was installed at the Westerbork Synthesis Radio Telescope in The Netherlands in 1998. We discuss in some detail PuMa's technical properties and capabilities. Recent observations, a sample of which are presented here, demonstrate its capabilities and that it is performing up to its specifications.Keywords
This publication has 17 references indexed in Scilit:
- Pulsar Magnetospheric Emission Mapping: Images and Implications of Polar Cap WeatherThe Astrophysical Journal, 1999
- Multifrequency polarimetry of 300 radio pulsarsMonthly Notices of the Royal Astronomical Society, 1998
- Young Neutron Stars in Supernova RemnantsPublished by Springer Nature ,1998
- Effelsberg multifrequency pulsar polarimetryAstronomy and Astrophysics Supplement Series, 1997
- A Wide Bandwidth Digital Recording System for Radio Pulsar AstronomyPublications of the Astronomical Society of the Pacific, 1997
- A Programmable 36-MHz Digital Filter Bank for Radio SciencePublications of the Astronomical Society of the Pacific, 1997
- The Westerbork Synthesis Radio Telescope, a Second Lease on LifePublished by Springer Nature ,1996
- A millisecond pulsarNature, 1982
- Microsecond Intensity Variations in the Radio Emissions from CP 0950The Astrophysical Journal, 1971
- Pulsar NP 0532: Properties and Systematic Polarization of Individual Strong Pulses at 430 MHzNature, 1970