Results 91 to 100 of about 13,504 (151)

Target Classification for 3D-ISAR Using CNNs

IEEE Transactions on Aerospace and Electronic Systems
In maritime surveillance, inverse synthetic aperture radar (ISAR) is a technique for imaging non-cooperative targets, with classification typically performed by the radar operator.
C. Pui, Brian Ng, L. Rosenberg, T. Cao
semanticscholar   +1 more source

An Efficient Sparse Aperture ISAR Imaging Framework for Maneuvering Targets

IEEE Transactions on Antennas and Propagation
Existing inverse synthetic aperture radar (ISAR) imaging methods under sparse aperture (SA) conditions are usually based on the assumption that the target motion is stationary, which limits their performance in practical applications.
Chen Chen, Zhiyong Xu, Sirui Tian
semanticscholar   +1 more source

ISAR-NeRF: Neural Radiance Fields for 3-D Imaging of Space Target From Multiview ISAR Images

IEEE Sensors Journal
With the rapid development of aerospace technology, especially the rise of the commercial aerospace industry, the number of space targets in orbit has increased rapidly.
Junyuan Deng, Pengfei Xie, Lei Zhang, Yulai Cong   +3 more
semanticscholar   +1 more source

Integrated Convolution Network for ISAR Imaging and Target Recognition

IEEE Journal on Miniaturization for Air and Space Systems, 2023
Recently, inverse synthetic aperture radar (ISAR) image recognition using deep learning (DL) technology is developed rapidly. However, the imaging and recognition processing is independent of each other, and the recognition network cannot fully capture ...
Haoze Du, Peishuang Ni, Jianlai Chen, Shuai Ma, Hui Zhang, Gang Xu   +5 more
semanticscholar   +1 more source

GEO Targets ISAR Imaging With Joint Intra-Pulse and Inter-Pulse High-Order Motion Compensation and Sub-Aperture Image Fusion at ULCPI

IEEE Transactions on Geoscience and Remote Sensing
The high orbit height leads to the ultralow signal-to-noise ratio (ULSNR) of geosynchronous (GEO) targets, so it is necessary to increase the coherent processing interval (CPI) to improve the coherent accumulation gain.
Shuai Shao, Hongwei Liu, Jiaqi Wei
semanticscholar   +1 more source

3-D Reconstruction of Space Target Based on Silhouettes Fused ISAR–Optical Images

IEEE Transactions on Geoscience and Remote Sensing
Space situational awareness (SSA) is a critical issue of space security. The SSA of 3-D information on flying space targets has been operated by inverse synthetic aperture radar (ISAR) and telescope observations. However, how good it is to fuse these two
Bo Long, Pengling Tang, Feng Wang, Yaqiu Jin   +3 more
semanticscholar   +1 more source

Deep Learning Approach for Sparse Aperture ISAR Imaging and Autofocusing Based on Complex-Valued ADMM-Net

IEEE Sensors Journal, 2021
Sparse aperture radar imaging is generally achieved by methods of compressive sensing (CS), or, sparse signal recovery(SSR). However, most of the traditional SSR methods cannot produce focused image stably, which limits their applications.
Ruize Li, Shuanghui Zhang, Chi Zhang, Yongxiang Liu, Xiang Li   +4 more
semanticscholar   +1 more source

Feature Distribution Transfer Learning for Robust Few-Shot ISAR Space Target Recognition

IEEE Transactions on Aerospace and Electronic Systems
Due to the strict observation conditions and special target attributes, inverse synthetic aperture radar (ISAR) may suffer with insufficient number of images for certain space targets, which leads to a considerable decline in the recognition performance.
Ruihang Xue, Xueru Bai, Minjia Yang, Bowen Chen, Feng Zhou   +4 more
semanticscholar   +1 more source

ISAR Imaging of Precession Target Based on Joint Constraints of Low Rank and Sparsity of Tensor

IEEE Transactions on Geoscience and Remote Sensing, 2023
Precession is a typical form of micromotion that can bring about complex and time-varying Doppler modulation. The range instantaneous Doppler (RID) method, which uses time–frequency analysis instead of the Fourier transform to describe the time-varying ...
Y. Mai, Shuanghui Zhang, Weidong Jiang, Chi Zhang, K. Huo, Yongxiang Liu   +5 more
semanticscholar   +1 more source

Complex-Valued Multiscale Vision Transformer on Space Target Recognition by ISAR Image Sequence

IEEE Geoscience and Remote Sensing Letters
In recent years, research on the recognition for inverse synthetic aperture radar (ISAR) images continues to deepen, while most methods only use the amplitude information of the ISAR image data.
Haoxuan Yuan, Hongbo Li, Yun Zhang, Chenxi Wei, Ruoyu Gao   +4 more
semanticscholar   +1 more source