5 January 2021 Flight track pattern recognition based on few labeled data with outliers
Yuqi Fan, Guangming Shen, Xiong Xu, Juan Xu, Xiaohui Yuan
Author Affiliations +
Abstract

Gradually crowded, complex airspace makes it necessary to identify the flight track patterns of interested targets. Existing studies on radar-based target track recognition rarely consider the impact of outliers in the acquired data, which happens very often for small air vehicles such as drones. In addition, the performance achieved with a few labeled track examples has significant room for improvement. We propose a semisupervised target track recognition algorithm based on a semisupervised generative adversarial network (SSGAN) that learns a robust model from a few labeled target track examples with the presence of outliers. Our method identifies and eliminates the outliers in the data set and fills in for the removed data. The proposed method extracts a strong recognition flight feature from the basic flight features and forms the strong recognition flight feature combination (SRFFC) by integrating the advanced flight features. The SRFFC is fed into the SSGAN model to identify target track patterns. Experiments were conducted using simulated data sets. Our results demonstrate that the proposed method achieves a highly competitive target track recognition performance in terms of accuracy, precision, and recall in comparison with the state-of-the-art methods. The minimum accuracy of our proposed method is 97%, which achieves an improvement of 15.7% compared with the state-of-the-art methods. In addition, our method exhibits great robustness with respect to the number of labeled data and choice of parameters.

© 2021 SPIE and IS&T 1017-9909/2021/$28.00 © 2021 SPIE and IS&T
Yuqi Fan, Guangming Shen, Xiong Xu, Juan Xu, and Xiaohui Yuan "Flight track pattern recognition based on few labeled data with outliers," Journal of Electronic Imaging 30(3), 031204 (5 January 2021). https://doi.org/10.1117/1.JEI.30.3.031204
Received: 30 July 2020; Accepted: 23 November 2020; Published: 5 January 2021
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CITATIONS
Cited by 6 scholarly publications.
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KEYWORDS
Target recognition

Radar

Pattern recognition

Detection and tracking algorithms

Data modeling

Statistical analysis

Gallium nitride

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