Title :
A digital baseband recorder for radio pulsar observations
Author :
Hao, Long-Fei ; Wang, Min ; Ali, Esamdin
Author_Institution :
Yunnan Obs., CAS, Kunming, China
Abstract :
Using the Kunming 40-m radio telescope at Yunnan Observatory, a Pulsar coherent de-dispersion experiment has been carried out, which uses a dual polarization receiver operating at s-band and a VLBA back-end: Mark5B+, whose highest sampling rate is 64 MHz. The data processing system is based on the C programs on Linux. Some pulsar profiles had been carried out using the DBBC and Mark5B+ record system. In this paper we will discuss the application of the DBBC platform in pulsar observation domain and the algorithm of de-dispersion. The main purposes for the instrument are studies of pulsar mode changing, pulsar timing, scintillation monitoring, glitches, GPs (Giant Pulsars), etc.
Keywords :
astronomical observatories; astronomy computing; data acquisition; dispersion (wave); electromagnetic wave polarisation; pulsars; radio receivers; radiotelescopes; C program; Kunming radio telescope; Linux; Yunnan observatory; data processing system; digital baseband recorder; dual polarization receiver; frequency 64 MHz; pulsar coherent de-dispersion experiment; scintillation monitoring; size 40 m; Bandwidth; Baseband; Observatories; Signal processing; Software; Telescopes; Coherent De-dispersion; FFT; Mark5B+; Pulsars;
Conference_Titel :
Signal Processing Systems (ICSPS), 2010 2nd International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-6892-8
Electronic_ISBN :
978-1-4244-6893-5
DOI :
10.1109/ICSPS.2010.5555513
