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Abstract
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Article Information:
Signal Processing Techniques Applied in RFI Mitigation of Radio Astronomy
Sixiu Wang, Zhengwen Sun, Weixia Wang and Liangquan Jia
Corresponding Author: Sixiu Wang
Submitted: March 26, 2012
Accepted: April 17, 2012
Published: August 15, 2012 |
Abstract:
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Radio broadcast and telecommunications are present at different power levels everywhere on Earth.
Radio Frequency Interference (RFI) substantially limits the sensitivity of existing radio telescopes in several
frequency bands and may prove to be an even greater obstacle for next generation of telescopes (or arrays) to
overcome. A variety of RFI detection and mitigation techniques have been developed in recent years. This
study describes various signal process methods of RFI mitigation in radio astronomy, choose the method of
Time-frequency domain cancellation to eliminate certain interference and effectively improve the signal to
noise ratio in pulsar observations. Finally, RFI mitigation researches and implements in China radio astronomy
will be also presented.
Key words: Mitigation methods, radio astronomy, RFI, signal processing, , ,
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Cite this Reference:
Sixiu Wang, Zhengwen Sun, Weixia Wang and Liangquan Jia, . Signal Processing Techniques Applied in RFI Mitigation of Radio Astronomy. Research Journal of Applied Sciences, Engineering and Technology, (16): 2813-2817.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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