کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4963668 | 1447052 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The beamformer and correlator for the Large European Array for Pulsars
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The beamformer and correlator for the Large European Array for Pulsars The beamformer and correlator for the Large European Array for Pulsars](/preview/png/4963668.png)
چکیده انگلیسی
The Large European Array for Pulsars combines Europe's largest radio telescopes to form a tied-array telescope that provides high signal-to-noise observations of millisecond pulsars (MSPs) with the objective to increase the sensitivity of detecting low-frequency gravitational waves. As part of this endeavor we have developed a software correlator and beamformer which enables the formation of a tied-array beam from the raw voltages from each of telescopes. We explain the concepts and techniques involved in the process of adding the raw voltages coherently. We further present the software processing pipeline that is specifically designed to deal with data from widely spaced, inhomogeneous radio telescopes and describe the steps involved in preparing, correlating and creating the tied-array beam. This includes polarization calibration, bandpass correction, frequency dependent phase correction, interference mitigation and pulsar gating. A link is provided where the software can be obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Astronomy and Computing - Volume 19, April 2017, Pages 66-74
Journal: Astronomy and Computing - Volume 19, April 2017, Pages 66-74
نویسندگان
R. Smits, C.G. Bassa, G.H. Janssen, R. Karuppusamy, M. Kramer, K.J. Lee, K. Liu, J. McKee, D. Perrodin, M. Purver, S. Sanidas, B.W. Stappers, W.W. Zhu,