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Dual recycling is an advanced optical technique to enhance the signal-to-noise ratio of laser interferometric gravitational wave detectors in a limited bandwidth. To optimise the center of this band with respect to Fourier frequencies of…

General Relativity and Quantum Cosmology · Physics 2009-10-31 A. Freise , G. Heinzel , K. A. Strain , J. Mizuno , K. D. Skeldon , H. Lueck , B. Willke , R. Schilling , A. Ruediger , W. Winkler , K. Danzmann

Detecting the objects in dense and rotated scenes is a challenging task. Recent works on this topic are mostly based on Faster RCNN or Retinanet. As they are highly dependent on the pre-set dense anchors and the NMS operation, the approach…

Computer Vision and Pattern Recognition · Computer Science 2023-12-06 Zhu Yuke , Ruan Yumeng , Yang Lei , Guo Sheng

Detecting tiny objects plays a vital role in remote sensing intelligent interpretation, as these objects often carry critical information for downstream applications. However, due to the extremely limited pixel information and significant…

Computer Vision and Pattern Recognition · Computer Science 2026-01-07 Zixiao Wen , Zhen Yang , Xianjie Bao , Lei Zhang , Xiantai Xiang , Wenshuai Li , Yuhan Liu

In this paper, we consider the problem of recovering a sum of filtered Diracs, representing an input with finite rate of innovation (FRI), from its corresponding time encoding machine (TEM) measurements. So far, the recovery was guaranteed…

Signal Processing · Electrical Eng. & Systems 2023-09-20 Dorian Florescu

Wave front sensing of the surface of equal phase for a propagating electromagnetic wave is a vital technology in fields ranging from real time adaptive optics, to high accuracy metrology, to medical optometry. We have developed a new method…

Optics · Physics 2025-10-01 C. L. Carilli , L. Torino , B. Nikolic , N. Thyagarajan , U. Iriso

Time reversal methods are widely used to achieve wave focusing in acoustics and electromagnetics. A typical time reversal experiment requires that a transmitter be initially present at the target focusing point, which limits the application…

Chaotic Dynamics · Physics 2016-05-11 Bo Xiao , Thomas M. Antonsen , Edward Ott , Steven M. Anlage

The scope of data-driven fault diagnosis models is greatly extended through deep learning (DL). However, the classical convolution and recurrent structure have their defects in computational efficiency and feature representation, while the…

Artificial Intelligence · Computer Science 2021-12-07 Yifei Ding , Minping Jia , Qiuhua Miao , Yudong Cao

This paper addresses a factorization method for imaging the support of a wave-number-dependent source function from multi-frequency data measured at a finite pair of symmetric receivers in opposite directions. The source function is given…

Numerical Analysis · Mathematics 2024-01-17 Hongxia Guo , Guanghui Hu , Guanqiu Ma

This paper presents a novel position control strategy for a single-link flexible manipulator, tailored for applications where precise position must be achieved within strict time constraints. To accomplish this objective, firstly, a nested…

Systems and Control · Electrical Eng. & Systems 2026-05-13 Atul Sharma , Chayan Kumar Paul , S. Janardhanan

Time delays due to signal latency, computational complexity, and sensor-denied environments, pose a critical challenge in both engineered and biological control systems. In this work, we investigate biologically inspired strategies to…

Systems and Control · Electrical Eng. & Systems 2019-12-12 Thomas L. Mohren , Thomas L. Daniel , Steven L. Brunton

Continuous wavefront sensing benefits space observatories in on-orbit optical performance maintenance. To measure the phase of a wavefront, phase retrieval is an attractive technique as it uses multiple point spread function (PSF) images…

Instrumentation and Methods for Astrophysics · Physics 2024-09-17 Hyukmo Kang , Kyle Van Gorkom , Meghdoot Biswas , Daewook Kim , Ewan S. Douglas

Force-aware grasping is an essential capability for most robots in practical applications. Especially for compliant grippers, such as Fin-Ray grippers, it still remains challenging to build a bidirectional mathematical model that mutually…

Robotics · Computer Science 2023-06-21 Huixu Dong , Ziyi Zheng , Haotian Guo , Sihao Yang , Chen Qiu , Jiansheng Dai , I-Ming Chen

We propose an all-optical method to directly reconstruct the band structure of semiconductors. Our scheme is based on the temporal Young's interferometer realized by high harmonic generation (HHG) with a few-cycle laser pulse. As a…

Optics · Physics 2020-04-22 Liang Li , Pengfei Lan , Lixin He , Wei Cao , Qingbin Zhang , Peixiang Lu

The process monitoring task is characterized by stringent demands for accuracy and efficiency. Current transformer-based methods, characterized by self-attention for temporal fusion, exhibit limitations in accurately understanding the…

Artificial Intelligence · Computer Science 2026-01-06 Hao Wang , Zhichao Chen , Licheng Pan , Xiaoyu Jiang , Yichen Song , Qunshan He , Xinggao Liu

The detection of moving infrared dim-small targets has been a challenging and prevalent research topic. The current state-of-the-art methods are mainly based on ConvLSTM to aggregate information from adjacent frames to facilitate the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Dengyan Luo , Yanping Xiang , Hu Wang , Luping Ji , Shuai Li , Mao Ye

Here we introduce interferometric devices by combining optical feedback (cavities) with unbiased multiports, which unlike traditional beam dividers, allow light to reflect back out of the port from which it originated. By replacing the…

Quantum Physics · Physics 2023-06-05 Christopher R. Schwarze , David S. Simon , Alexander V. Sergienko

A well-trained model should classify objects with a unanimous score for every category. This requires the high-level semantic features should be as much alike as possible among samples. To achive this, previous works focus on re-designing…

Computer Vision and Pattern Recognition · Computer Science 2019-03-29 Hongyang Li , Bo Dai , Shaoshuai Shi , Wanli Ouyang , Xiaogang Wang

We introduce a novel Dual Input Stream Transformer (DIST) for the challenging problem of assigning fixation points from eye-tracking data collected during passage reading to the line of text that the reader was actually focused on. This…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Thomas M. Mercier , Marcin Budka , Martin R. Vasilev , Julie A. Kirkby , Bernhard Angele , Timothy J. Slattery

Interferometers play a crucial role in high-precision displacement measurement such as gravitational-wave detection. Conventional interferometer designs require accurate laser alignment, including the laser pointing and the waist position,…

Instrumentation and Detectors · Physics 2024-01-05 Xiang Lin , Peng Qiu , Yurong Liang , Xiaofang Ren , Hao Yan , Zebing Zhou

Near-infrared (NIR) detectors -- which use non-destructive readouts to measure time-series counts-per-pixel -- play a crucial role in modern astrophysics. Standard NIR flux extraction techniques were developed for space-based observations…