Applying deep learning methodsto identify targets in synthetic apertureradar images
Başlık çevirisi mevcut değil.
- Tez No: 720788
- Danışmanlar: DR. DAVİD A. GARREN, DR. JOHN D. ROTH
- Tez Türü: Yüksek Lisans
- Konular: Bilgisayar Mühendisliği Bilimleri-Bilgisayar ve Kontrol, Computer Engineering and Computer Science and Control
- Anahtar Kelimeler: Belirtilmemiş.
- Yıl: 2020
- Dil: İngilizce
- Üniversite: The Naval Postgraduate School
- Enstitü: Yurtdışı Enstitü
- Ana Bilim Dalı: Belirtilmemiş.
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: Belirtilmemiş.
Özet
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Özet (Çeviri)
Synthetic aperture radar (SAR) provides high-resolution imagery and can operate in the day and at night and in every weather condition. SAR has been used for military reconnaissance and surveillance. Examining SAR images manually, however, is challenging even for a specialist, since it is difficult to find high-value targets in a wide area of SAR images. This is especially true when time is critical for operations. Thus, an efficient, reliable method to analyze SAR images automatically is needed. To solve this problem, deep learning (DL) methods are developed for automatic target recognition (ATR). A convolutional neural network (CNN) is a deep-learning algorithm made up of several processing layers for target recognition and classification. One of the challenges in developing and testing a CNN algorithm is to find relevant datasets. The dataset used in this thesis comes from the Moving and Stationary Target Acquisition and Recognition program (MSTAR). In this research, the SAR ATR concept and performance are analyzed using several CNN DL architectures. Specifically, this investigation examines the effects of a few variable parameters within CNN DL architectures to gain insight into optimal strategies for using these architectures. Using CNN structures with different numbers of layers, it was possible to classify SAR targets successfully and automatically with stateof-the-art accuracy. This method proved useful for classification and recognition of military targets.
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