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- W4285291472 abstract "Under the framework of feature-based detection of small targets on sea surface, existing feature extraction methods only use the echo data of current frame while ignoring the influence of historical echo data. Nevertheless, due to the non-stationarity of sea clutter, it may lead to unstable extraction of detection features, and then affect detection performance. To solve this problem, this paper designs a feature extraction method based on <i>a priori</i> information for small target detection. It firstly obtains <i>a priori</i> information from historical echo data by kernel density estimation (KDE) method. Then, the corresponding feature estimation method is utilized to obtain improved feature according to the relationship between current frame data and <i>a priori</i> information. Finally, the feature information of current frame is integrated into <i>a priori</i> information to prepare next feature extraction. Measured data are utilized to verify the performance of proposed method and the results reveal that, this method can effectively improve detection performance especially when sea clutter and target echo have good separability. In addition, the complexity of algorithm is analyzed to prove that proposed method has certain application potential." @default.
- W4285291472 created "2022-07-14" @default.
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- W4285291472 date "2022-01-01" @default.
- W4285291472 modified "2023-10-15" @default.
- W4285291472 title "Priori Information-Based Feature Extraction Method for Small Target Detection in Sea Clutter" @default.
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- W4285291472 doi "https://doi.org/10.1109/tgrs.2022.3188046" @default.
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