Radio Frequency Interference Mitigation at the WSRT
Instrumentation and Methods for Astrophysics
2015-05-20 v1
Abstract
The sensitivity of radio astronomical stations is often limited by man-made radio frequency interference (RFI) due to a variety of terrestrial activities. An RFI mitigation subsystem (RFIMS) based on real-time digital signalprocessing is proposed here for the Westerbork Synthesis Radio Telescope based on a powerful field programmable gate array processor. In this system the radio astronomy signals polluted by RFI are "cleaned" with the RFIMS before routine back-end correlation processing takes place. The high temporal and frequency resolution of RFIMS allows the detection and excision of RFI better than do standard radio telescope back-end configurations.
Cite
@article{arxiv.1010.2771,
title = {Radio Frequency Interference Mitigation at the WSRT},
author = {P. A. Fridman and W. A. Baan and R. P. Millenaar},
journal= {arXiv preprint arXiv:1010.2771},
year = {2015}
}
Comments
17 pages, 17 figures