TY - GEN
T1 - The correlation analysis of ionospheric clutter and noise using SeaSonde HF radar
AU - Chung, Yu Jen
AU - Chen, Yu Ru
AU - Chuang, Laurence Z.H.
AU - Yang, Yiing Jang
AU - Leu, Li Guang
N1 - Funding Information:
This work was funded by the Ministry of Science and Technology under grants MOST 105-2221-E-006-137 and MOST 106-2623-E-002-002-D.
Publisher Copyright:
© 2017 IEEE.
PY - 2017/10/25
Y1 - 2017/10/25
N2 - High-frequency (HF) ground wave radar's over-the-horizon property can effectively overcome the restraints posed by the curvature of the earth. HF radar transmits low-power radar waves and its detection distance is up to several hundred kilometers. However, radar in HF bands may be easily contaminated by noise, which has temporal and spatial variability, and ionospheric interference, limiting system performance. Therefore, understanding the regional properties of noise environmental is critical. This study investigates the spatialoral properties of noise in long-term radar data and then analyzes the relation between noise and ionospheric indices. A comparison of the time series of ionosphere and noise indices indicates a diurnal fluctuation property. These results through cross correlation show the consistency of SUAO and HABN HF radar sites and a dramatic change of correlation coefficients over time delay. Most of the strongest negative correlations at both radar sites were found with lead time of noise index about time delay between 2 to 4 h during test period.
AB - High-frequency (HF) ground wave radar's over-the-horizon property can effectively overcome the restraints posed by the curvature of the earth. HF radar transmits low-power radar waves and its detection distance is up to several hundred kilometers. However, radar in HF bands may be easily contaminated by noise, which has temporal and spatial variability, and ionospheric interference, limiting system performance. Therefore, understanding the regional properties of noise environmental is critical. This study investigates the spatialoral properties of noise in long-term radar data and then analyzes the relation between noise and ionospheric indices. A comparison of the time series of ionosphere and noise indices indicates a diurnal fluctuation property. These results through cross correlation show the consistency of SUAO and HABN HF radar sites and a dramatic change of correlation coefficients over time delay. Most of the strongest negative correlations at both radar sites were found with lead time of noise index about time delay between 2 to 4 h during test period.
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U2 - 10.1109/OCEANSE.2017.8084968
DO - 10.1109/OCEANSE.2017.8084968
M3 - Conference contribution
AN - SCOPUS:85044754834
T3 - OCEANS 2017 - Aberdeen
SP - 1
EP - 4
BT - OCEANS 2017 - Aberdeen
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - OCEANS 2017 - Aberdeen
Y2 - 19 June 2017 through 22 June 2017
ER -