Processing of airborne microwave photonic SAR raw data with inaccurate RSF

J Chen, M Li, M Xing, G Xu, Y Zhu… - IEEE Journal on …, 2023 - ieeexplore.ieee.org
Due to system instability and other reasons, the actual range sampling frequency (RSF) of
the system may deviate from the ideal value for the microwave photonic synthetic aperture …

SAR target detection based on improved SSD with saliency map and residual network

F Zhou, F He, C Gui, Z Dong, M Xing - Remote Sensing, 2022 - mdpi.com
A target detection method based on an improved single shot multibox detector (SSD) is
proposed to solve insufficient training samples for synthetic aperture radar (SAR) target …

A robust track error estimation method for airborne SAR based on accuracy analysis model

M Gao, X Qiu, Y Cheng, J Lv, C Ding - Remote Sensing, 2022 - mdpi.com
With the development of miniaturization technology, Synthetic Aperture Radar (SAR) can be
equipped on small carriers such as small Unmanned Aerial Vehicles (UAVs). In order to …

GNSS 外辐射源动目标遥感检测技术现状与发展趋势

龚健雅, 张策, 石书祝 - 武汉大学学报(信息科学版), 2024 - ch.whu.edu.cn
全球卫星导航系统(Global Navigation Satellite System, GNSS) 除了用于导航定位服务之外,
因其信号覆盖率高及卫星可见性强等优势, 亦可作为被动雷达的机会辐射源完成地表环境和运动 …

A high-resolution airborne SAR autofocusing approach based on SR-PGA and subimage resampling with precise hyperbolic model

Y Deng, H Wang, GC Sun, Y Wang… - IEEE Journal of …, 2023 - ieeexplore.ieee.org
High-resolution airborne synthetic aperture radar imaging requires long synthetic aperture
time (LSAT). However, the LSAT invalidates the Fresnel approximation in the traditional …

[HTML][HTML] Multi-layer overlapped subaperture algorithm for extremely-high-squint high-resolution wide-swath SAR imaging with continuously time-varying radar …

Y Wang, R Min, Z Ding, T Zeng, L Li - Remote Sensing, 2022 - mdpi.com
Extremely-high-squint (EHS) geometry of the traditional constant-parameter synthetic
aperture radar (SAR) induces non-orthogonal wavenumber spectrum and hence the …

Ground Moving Target Indication and Relocation in Spaceborne MIMO-SAR Systems

L Wang, P Huang, X Lin, XG Xia… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Multiple-input–multiple-output (MIMO) technique has recently received great attention due to
its promising prospect for ground moving target indication (GMTI) applications in a synthetic …

A double residual iterative regularization method for SAR image despeckling

C Wang, B Guo - IEEE Geoscience and Remote Sensing …, 2023 - ieeexplore.ieee.org
Synthetic aperture radar (SAR) imaging systems are greatly affected by speckle noise, which
brings great difficulties to the postprocessing of SAR images. By characterizing edge and …

Real-Time Imaging Processing of Squint Spaceborne SAR with High-Resolution Based on Nonuniform PRI Design

Y Jin, B Liang, J Chen, Y Xiong, M Xiong - Remote Sensing, 2022 - mdpi.com
The real-time imaging research of squint spaceborne synthetic aperture radar (SAR) with
high resolution has significant value in both military and civil fields, which makes it a hot …

[PDF][PDF] 基于子图像变标的非线性轨迹SAR 成像及其自聚焦方法

陈溅来, 熊毅, 徐刚, 张俊超, 杨德贵, 梁步阁 - Journal of Radars, 2022 - radars.ac.cn
合成孔径雷达(SAR) 的非线性轨迹运动可能会在雷达回波信号中引入严重的二维空变特性,
因此基于方位平移不变性假设的传统频域成像算法不再适用于非线性轨迹SAR 的高精度成像 …