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相关论文: Coherent Integration for Targets with Constant Car…

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Long Time Coherent Integration (LTCI) aims to accumulate target energy through long time integration, which is an effective method for the detection of a weak target. However, for a moving target, defocusing can occur due to range migration…

系统与控制 · 电气工程与系统科学 2024-03-12 Suqi Li , Yihan Wang , Bailu Wang , Giorgio Battistelli , Luigi Chisci , Guolong Cui

To solve the range cell migration (RCM) and spectrum spread during the integration time induced by the motion of a target, this paper proposes a new coherent integration method based on Radon non-uniform FRFT (NUFRFT) for random pulse…

统计方法学 · 统计学 2015-11-11 Jing Tian , Xiang-Gen Xia , Gang Yang , Wei Cui , Si-Liang Wu

We propose the LCB-CV-UNet to tackle performance degradation caused by High Dynamic Range (HDR) radar signals. Initially, a hardware-efficient, plug-and-play module named Logarithmic Connect Block (LCB) is proposed as a phase coherence…

信号处理 · 电气工程与系统科学 2025-11-27 Yanbin Wang , Xingyu Chen , Yumiao Wang , Xiang Wang , Chuanfei Zang , Guolong Cui , Jiahuan Liu

Coherent diffraction imaging (CDI) is a promising imaging technique revealing most of the information from diffraction measurements. An ideal CDI should reconstruct complex-valued object from a single-shot far-field diffraction without any…

光学 · 物理学 2022-08-26 An-Dong Xiong , Xiao-Peng Jin , Xv-Ri Yao , Qing Zhao

Optimization of slow-time transmit sequence endows cognitive radar with the ability to suppress strong clutter in the range-Doppler domain. However, in practice, inaccurate target velocity information or random phase error would induce…

信号处理 · 电气工程与系统科学 2024-04-17 Xinyu Zhang , Weidong Jiang , Xiangfeng Qiu , Yongxiang Liu

A novel electromagnetic quantitative inversion scheme for translationally moving targets via phase correlation registration of back-projection (BP) images is proposed. Based on a time division multiplexing multiple-input multiple-output…

图像与视频处理 · 电气工程与系统科学 2025-11-20 Yitao Lin , Dahai Dai , Shilong Sun , Yuchen Wu , Bo Pang

In radar accurate localization of unmanned aerial vehicle (UAV) swarms, the high density, similar motion parameters, small radar cross-section (RCS), strong noise and far range put forward high requirements on radar resolution and…

信号处理 · 电气工程与系统科学 2020-04-28 Tianyuan Yang , Jibin Zheng , Tao Su , Hongwei Liu

Advances in time-resolved Particle Tracking Velocimetry (4D-PTV) techniques have been consistently revealed more accurate Lagrangian particle motions. A novel track initialisation technique as a complementary part of 4D-PTV, based on local…

流体动力学 · 物理学 2021-09-10 Ali Rahimi Khojasteh , Yin Yang , Dominique Heitz , Sylvain Laizet

Accurate camera-LiDAR calibration is a prerequisite for robust multi-modal perception in robotics. Recent target-less approaches based on deep point correspondences achieve remarkable performance for extrinsic calibration but assume…

计算机视觉与模式识别 · 计算机科学 2026-05-25 Simon Bultmann , Daniele Cattaneo , Abhinav Valada

In this research, a novel robust change detection approach is presented for imbalanced multi-temporal synthetic aperture radar (SAR) image based on deep learning. Our main contribution is to develop a novel method for generating difference…

计算机视觉与模式识别 · 计算机科学 2020-03-05 Xinzheng Zhang , Hang Su , Ce Zhang , Peter M. Atkinson , Xiaoheng Tan , Xiaoping Zeng , Xin Jian

Synthetic aperture radar (SAR) can measure the phase with antenna and microwave, which cannot be directly extended to visible light imaging due to phase lost. In this letter, we reported an active remote sensing with visible light via…

光学 · 物理学 2022-04-26 Meng Xiang , An Pan , Yiyi Zhao , Xuewu Fan , Hui Zhao , Chuang Li , Baoli Yao

Coherent diffraction imaging (CDI) for visualizing objects at atomic resolution has been realized as a promising tool for imaging single molecules. Drawbacks of CDI are associated with the difficulty of the numerical phase retrieval from…

Target detection is pivotal for modern urban computing applications. While image-based techniques are widely adopted, they falter under challenging environmental conditions such as adverse weather, poor lighting, and occlusion. To improve…

图像与视频处理 · 电气工程与系统科学 2024-02-29 Chen Zhu , Zhouxiang Zhao , Zejing Shan , Lijie Yang , Sijie Ji , Zhaohui Yang , Zhaoyang Zhang

We present a strictly monotone, provably convergent two-dimensional (2D) integration method for multi-period mean-conditional value-at-risk (mean-CVaR) reward-risk stochastic control in models whose one-step increment law is specified via a…

最优化与控制 · 数学 2026-03-30 Duy-Minh Dang , Hao Zhou

In this work, we consider the detection of manoeuvring small objects with radars. Such objects induce low signal to noise ratio (SNR) reflections in the received signal. We consider both co-located and separated transmitter/receiver pairs,…

系统与控制 · 计算机科学 2025-07-08 Kimin Kim , Murat Uney , Bernard Mulgrew

This paper proposes a novel approach to robust radar detection of range-spread targets embedded in Gaussian noise with unknown covariance matrix. The idea is to model the useful target echo in each range cell as the sum of a coherent signal…

信号处理 · 电气工程与系统科学 2022-10-04 Angelo Coluccia , Alessio Fascista , Giuseppe Ricci

Distributed multi-target tracking (DMTT) is addressed for sensors having different fields of view (FoVs). The proposed approach is based on the idea of fusing the posterior Probability Hypotheses Densities (PHDs) generated by the sensors on…

系统与控制 · 计算机科学 2019-08-28 Guchong Li , Giorgio Battistelli , Wei Yi , Lingjiang Kong

Autonomous driving highly depends on capable sensors to perceive the environment and to deliver reliable information to the vehicles' control systems. To increase its robustness, a diversified set of sensors is used, including radar…

信号处理 · 电气工程与系统科学 2021-05-04 Alexander Fuchs , Johanna Rock , Mate Toth , Paul Meissner , Franz Pernkopf

Multiple-input multiple-output (MIMO) radar offers several performance and flexibility advantages over traditional radar arrays. However, high angular and Doppler resolutions necessitate a large number of antenna elements and the…

信号处理 · 电气工程与系统科学 2025-09-11 Chandrashekhar Rai , Himali Singh , Arpan Chattopadhyay

In orthogonal frequency-division multiplexing-based radar and integrated sensing and communication systems, the sensing range is traditionally limited by the round-trip time corresponding to the cyclic prefix duration. Targets whose echoes…

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