TY - GEN
T1 - Radio frequency interference excision in solar dynamic spectra using variance-based spectral statistics
AU - Wang, Xiaoli
AU - Ge, Hongya
AU - Nita, Gelu
AU - Gary, Dale
PY - 2008
Y1 - 2008
N2 - In this paper, a radio frequency interference (RFI) excision algorithm using variance-based analysis on power spectral statistics is proposed and tested on the solar data collected from our frequency agile solar radio-telescope (FASR) subsystem test-bed (FST). A threshold approach working on a proposed test statistic T(x; f), shown to be F-distributed, is developed to effectively identify the presence of non-Gaussian RFI in the Gaussian solar flare background. Detailed discussions on signal duty cycle and threshold setting are provided. Real-data experimental results are presented to demonstrate the robustness and effectiveness of the proposed algorithm.
AB - In this paper, a radio frequency interference (RFI) excision algorithm using variance-based analysis on power spectral statistics is proposed and tested on the solar data collected from our frequency agile solar radio-telescope (FASR) subsystem test-bed (FST). A threshold approach working on a proposed test statistic T(x; f), shown to be F-distributed, is developed to effectively identify the presence of non-Gaussian RFI in the Gaussian solar flare background. Detailed discussions on signal duty cycle and threshold setting are provided. Real-data experimental results are presented to demonstrate the robustness and effectiveness of the proposed algorithm.
KW - Power spectral estimation
KW - Radio frequency interference (RFI)
KW - Statistical analysis
UR - http://www.scopus.com/inward/record.url?scp=51449123046&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=51449123046&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2008.4518445
DO - 10.1109/ICASSP.2008.4518445
M3 - Conference contribution
AN - SCOPUS:51449123046
SN - 1424414849
SN - 9781424414840
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 3657
EP - 3660
BT - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
T2 - 2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Y2 - 31 March 2008 through 4 April 2008
ER -