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Related papers: Remote Operation of a Single-Point LDV System to A…

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In current research, laser Doppler vibrometer (LDV) as a new diagnostic tool is utilized for non-destructive testing of the automotive equipment. LDV technique is working based on measurement of the Doppler shift of a moving object in an…

Signal Processing · Electrical Eng. & Systems 2023-04-24 Fatemeh Rezaei

Non-intrusive displacement measurement technique has a distinct edge over displacement sensors working in contact mode. Laser Doppler Vibrometry based schemes (LDV) offer such an advantage. However, the measurements are limited up to…

Instrumentation and Detectors · Physics 2020-02-17 Nikhil Kumar Pachisia , Kajal Tiwari , Ritwick Das

This is a complementary document to the paper presented in [1], to provide more detailed proofs for some results. The main paper addresses the problem of trajectory tracking control of autonomous rotorcraft in operation scenarios where only…

Systems and Control · Computer Science 2017-05-04 Bruno J. Guerreiro , Carlos Silvestre , Rita Cunha , David Cabecinhas

The derivation of radial velocities from large numbers of spectra that typically result from survey work, requires automation. However, except for the classical cases of slowly rotating late-type spectra, existing methods of measuring…

Instrumentation and Methods for Astrophysics · Physics 2014-05-20 M. David , R. Blomme , Y. Frémat , Y. Damerdji , C. Delle Luche , E. Gosset , D. Katz , Y. Viala

Laser triangulation sensors are widely used in industry for surface inspection due to simple setup, micron precision and low cost. Conventional laser triangulation methods only enable axial distance measurement limiting further…

Instrumentation and Detectors · Physics 2024-12-02 Hao Zhang , Shiji Wang

This paper presents a least mean square (LMS) algorithm for the joint estimation of acoustic and mean flow velocities from laser doppler velocimetry (LDV) measurements. The usual algorithms used for measuring with LDV purely acoustic…

Classical Physics · Physics 2009-07-08 Laurent Simon , Olivier Richoux , Anne Degroot , Louis Lionet

Scanning Laser Doppler Vibrometer (SLDV) measurements are affected by sensor head vibrations as if they are vibrations of the target surface itself. This paper presents practical correction schemes to solve this important problem. The study…

Instrumentation and Detectors · Physics 2020-06-22 Ben J. Halkon , Steve J. Rothberg

Although fully autonomous systems still face challenges due to patients' anatomical variability, teleoperated systems appear to be more practical in current healthcare settings. This paper presents an anatomy-aware control framework for…

Robotics · Computer Science 2026-02-13 Davide Nardi , Edoardo Lamon , Daniele Fontanelli , Matteo Saveriano , Luigi Palopoli

We present a novel 3D odometry method that recovers the full motion of a vehicle only from a Doppler-capable range sensor. It leverages the radial velocities measured from the scene, estimating the sensor's velocity from a single scan. The…

Controlling the propagation and interaction of light in complex media has sparked major interest in the last few years. Unfortunately, spatial light modulation devices suffer from limited speed that precludes real-time applications such as…

Image and Video Processing · Electrical Eng. & Systems 2020-01-08 Omer Tzang , Eyal Niv , Sakshi Singh , Simon Labouesse , Greg Myatt , Rafael Piestun

Precise autonomous navigation remains a substantial challenge to all underwater platforms. Inertial Measurement Units (IMU) and Doppler Velocity Logs (DVL) have complementary characteristics and are promising sensors that could enable fully…

Robotics · Computer Science 2015-09-08 Xianfei Pan , Yuanxin Wu

We describe a time lens to expand the dynamic range of photon Doppler velocimetry (PDV) systems. The principle and preliminary design of a time-lens PDV (TL-PDV) are explained and shown to be feasible through simulations. In a PDV system,…

Optics · Physics 2021-04-14 Pinghan Chu , Velat Kilic , Mark A. Foster , Zhehui Wang

The frame rates of most 3D LIDAR sensors used in intelligent vehicles are substantially lower than current cameras installed in the same vehicle. This research suggests using a mono camera to virtually enhance the frame rate of LIDARs,…

Computer Vision and Pattern Recognition · Computer Science 2023-02-13 Zoltan Rozsa , Tamas Sziranyi

Localization, or position fixing, is an important problem in robotics research. In this paper, we propose a novel approach for long-term localization in a changing environment using 3D LiDAR. We first create the map of a real environment…

Robotics · Computer Science 2019-10-29 Yilong Zhu , Bohuan Xue , Linwei Zheng , Huaiyang Huang , Ming Liu , Rui Fan

Accurate motion capture of aerial robots in 3-D is a key enabler for autonomous operation in indoor environments such as warehouses or factories, as well as driving forward research in these areas. The most commonly used solutions at…

Robotics · Computer Science 2020-11-16 Peijun Zhao , Chris Xiaoxuan Lu , Bing Wang , Niki Trigoni , Andrew Markham

This article presents a novel telepresence system for advancing aerial manipulation in dynamic and unstructured environments. The proposed system not only features a haptic device, but also a virtual reality (VR) interface that provides…

We investigate the problem of localizing multiple targets using a single set of measurements from a network of radar sensors. Such "single snapshot imaging" provides timely situational awareness, but can utilize neither platform motion, as…

Signal Processing · Electrical Eng. & Systems 2024-10-01 Anant Gupta , Ahmet Dundar Sezer , Upamanyu Madhow

Many emerging reconfigurable optical systems are limited by routing complexity when producing dynamic, two-dimensional (2D) electric fields. Using a gradient-based inverse designed, static phase-mask doublet, we propose an optical system to…

Robotic underwater systems, e.g., Autonomous Underwater Vehicles (AUVs) and Remotely Operated Vehicles (ROVs), are promising tools for collecting biogeochemical data at the ice-water interface for scientific advancements. However, state…

Robotics · Computer Science 2023-08-11 Lin Zhao , Mingxi Zhou , Brice Loose

Since most developed countries are facing an increase in the number of patients per healthcare worker due to a declining birth rate and an aging population, relatively simple and safe diagnosis tasks may need to be performed using robotics…

Robotics · Computer Science 2022-10-31 Ryosuke Tsumura , Yoshihiko Koseki , Naotaka Nitta , Kiyoshi Yoshinaka
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