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Adaptive Network Detector for Radar Target in Changing Scenes
- Source :
- Remote Sensing, Vol 13, Iss 3743, p 3743 (2021)
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- Data-driven deep learning has been well applied in radar target detection. However, the performance of the detection network is severely degraded when the detection scene changes, since the trained network with the data from one scene is not suitable for another scene with different data distribution. In order to address this problem, an adaptive network detector combined with scene classification is proposed in this paper. Aiming at maximizing the posterior probability of the feature vectors, the scene classification network is arranged to control the output ratio of a group of detection sub-networks. Due to the uncertainty of classification error rate in traditional machine learning, the classifier with a controllable false alarm rate is constructed. In addition, a new network training strategy, which freezes the parameters of the scene classification network and selectively fine-tunes the parameters of detection sub-networks, is proposed for the adaptive network structure. Comprehensive experiments are carried out to demonstrate that the proposed method guarantees a high detection probability when the detection scene changes. Compared with some classical detectors, the adaptive network detector shows better performance.
- Subjects :
- scene classification
Network detector
Artificial neural network
business.industry
Computer science
Deep learning
Feature vector
Science
Posterior probability
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
Word error rate
radar target detection
neural networks
Constant false alarm rate
law.invention
time-frequency map
constant false alarm rate
law
General Earth and Planetary Sciences
Computer vision
Artificial intelligence
Radar
business
Subjects
Details
- Language :
- English
- ISSN :
- 20724292
- Volume :
- 13
- Issue :
- 3743
- Database :
- OpenAIRE
- Journal :
- Remote Sensing
- Accession number :
- edsair.doi.dedup.....d1ecc7dd5c7a665abc0086dc655ac167