Model Modifying and Characteristics Analyzing of Ocean Clutter in Skywave Over-the-horizon Radar

GUAN Zewen; CHEN Jianwen; BAO Zheng

doi:10.11999/JEIT170224

Volume 39 Issue 12

Dec. 2017

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Article Navigation > Journal of Electronics & Information Technology > 2017 > 39(12): 2881-2888

GUAN Zewen, CHEN Jianwen, BAO Zheng. Model Modifying and Characteristics Analyzing of Ocean Clutter in Skywave Over-the-horizon Radar[J]. Journal of Electronics & Information Technology, 2017, 39(12): 2881-2888. doi: 10.11999/JEIT170224

Citation:

GUAN Zewen, CHEN Jianwen, BAO Zheng. Model Modifying and Characteristics Analyzing of Ocean Clutter in Skywave Over-the-horizon Radar[J]. Journal of Electronics & Information Technology, 2017, 39(12): 2881-2888. doi: 10.11999/JEIT170224

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Model Modifying and Characteristics Analyzing of Ocean Clutter in Skywave Over-the-horizon Radar

doi: 10.11999/JEIT170224

Funds:

The National Natural Science Foundation of China (61471391, 61072132)

Received Date: 2017-03-17
Rev Recd Date: 2017-06-05
Publish Date: 2017-12-19

Abstract

Abstract

As modulated by the ionosphere, the classical High-Frequency (HF) model of ocean clutter can not describe the HF scatterings from sea surface approvingly in view of skywave Over-The-Horizon Radar (OTHR). In this paper, ocean current is taken into consideration based on the Walsh HF sea clutter model. An equivalent ionospheric reflecting screen model is established which can be resolved into several sub screens, based on which the ionospheric modulation on frequency is discussed. Incorporating with Walsh model, a normalized sea clutter model for skywave OTHR is presented. Using the presented model, the spectrums in different cases involving Doppler shift, spectrum broadening, splitting and multipath propagation are simulated, and comparing with the measured data, the models validity and robustness are verified.
- Skywave Over-The-Horizon Radar (OTHR),
- Sea clutter model,
- Ionospheric sub reflecting screen,
- Equivalent ionospheric reflecting screen

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References(31)

References

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