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- W4316019969 abstract "Radar automatic target recognition based on high-resolution range profile (HRRP) has become a research hotspot in recent years. The current works mainly focus on closed set recognition, where all the test samples are assigned to the training classes. However, radar may capture many unknown targets in practical applications, and most current methods are incapable of identifying the unknown targets as the ’unknown’. Therefore, open set recognition is proposed to solve this kind of recognition task. This paper analyzes the basic classification principle of both recognitions and makes sure that determining the closed classification boundary is the key to addressing open set recognition. To achieve this goal, this paper proposes a novel boundary detection algorithm based on the distribution balance property of k-nearest neighbor objects, which can be used to realize the identification of the known and unknown targets simultaneously by detecting the boundary of the known classes. Finally, extensive experiments based on measured HRRP data have demonstrated that the proposed algorithm is indeed helpful to greatly improve the open set performance by determining the closed classification boundary of the known classes." @default.
- W4316019969 created "2023-01-14" @default.
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- W4316019969 date "2023-01-12" @default.
- W4316019969 modified "2023-10-18" @default.
- W4316019969 title "Radar HRRP Open Set Target Recognition Based on Closed Classification Boundary" @default.
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- W4316019969 doi "https://doi.org/10.3390/rs15020468" @default.
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