Results 101 to 110 of about 24,730 (232)

Integrating the Non-Line of Sight Launching System (NLOS-LS) in the United States Navy

, 2007
Abstract : The global war on terror emphasizes the need for a weapon system that can improve the self-defense capability of the U.S. Navy ship against small surface craft threats. This MSSE Capstone Project investigated the feasibility of integrating the Non-Line of Sight Launching System (NLOS-LS) onto U.S. Navy ships.
Don Tumbocon, Mei Li, Timothy Jones, Bryan Huang, Jonathon Emis   +4 more
openaire   +3 more sources

High-resolution non-line-of-sight imaging based on liquid crystal planar optical elements

Nanophotonics
Non-line-of-sight (NLOS) imaging aims at recovering hidden objects located beyond the traditional line of sight, with potential applications in areas such as security monitoring, search and rescue, and autonomous driving.
Zhibin Zhao, Qi Zhang, Xiaoyin Li, Yinghui Guo, M. Pu, Fei Zhang, Hengshuo Guo, Zewei Wang, Yulong Fan, Mingfeng Xu, Xiangang Luo   +10 more
semanticscholar   +1 more source

Plug-and-Play Algorithms for Dynamic Non-line-of-sight Imaging

ACM Transactions on Graphics
Non-line-of-sight (NLOS) imaging has the ability to recover 3D images of scenes outside the direct line of sight, which is of growing interest for diverse applications. Despite the remarkable progress, NLOS imaging of dynamic objects is still challenging.
Juntian Ye, Yu Hong, Xiongfei Su, Xin Yuan, Feihu Xu   +4 more
semanticscholar   +1 more source

TDOA-Based Mobile Localization Using Particle Filter With Multiple Motion and Channel Models

IEEE Access, 2019
Mobile terminal tracking is an important topic in wireless communications. A TDOA-based positioning method combining the interacting multiple models and the particle filter is proposed in this paper for non-cooperative target tracking in two dimensions ...
Nan Xia, Mary Ann Weitnauer
doaj   +1 more source

Investigation of non-line-of-sight underwater optical wireless communications with wavy surface.

Optics Express
Underwater optical wireless communication (UOWC) systems have been widely researched to achieve high-speed and secure wireless communications. The non-line-of-sight (NLOS) UOWC system that uses the water surface to reflect signal light is widely studied ...
Chengwei Fang, Shuo Li, Yinong Wang, Ke Wang   +3 more
semanticscholar   +1 more source

NLOS Identification and Weighted Least-Squares Localization for UWB Systems Using Multipath Channel Statistics

EURASIP Journal on Advances in Signal Processing, 2007
Non-line-of-sight (NLOS) identification and mitigation carry significant importance in wireless localization systems. In this paper, we propose a novel NLOS identification technique based on the multipath channel statistics such as the kurtosis, the mean
Hiroshi Inamura, Fujio Watanabe, Chia-Chin Chong, İsmail Güvenç   +3 more
doaj   +1 more source

Path Tracing-Inspired Modeling of Non-Line-of-Sight SPAD Data

Sensors
Non-Line of Sight (NLOS) imaging has gained attention for its ability to detect and reconstruct objects beyond the direct line of sight, using scattered light, with applications in surveillance and autonomous navigation.
Stirling Scholes, Jonathan Leach
doaj   +1 more source

Characterization of Non−Line−of−Sight (NLOS) Bias via Analysis of Clutter Topology

, 2016
Clutter-prone environments are challenging for range-based localization, where distances between references and the unlocalized node are estimated using wireless technologies like radio, ultrasound, etc. This is so due to the incidence of Non-Line-Of-Sight (NLOS) distance measurements as the direct path between the twp is occluded by the presence of ...
Hussain, M, Aytar, Y, Markham, A, Trigoni, N   +3 more
openaire   +1 more source

Under-scanning non-line-of-sight imaging based on convolution approximation and optimization

APL Photonics
Non-line-of-sight (NLOS) imaging aims to reconstruct objects beyond line-of-sight view, enabling potential applications in various fields. However, a fundamental problem is that acquiring the transient images is time-consuming, making it challenging to ...
Jinye Miao, Yingjie Shi, Lingfeng Liu, Yi Wei, Fuyao Cai, Lianfa Bai, Enlai Guo, Jing Han   +7 more
doaj   +1 more source

Concept of image based Non-Line-of-Sight (NLOS) localization in multipath environments

, 2012
Current bidirectional localization schemes are able to locate a mobile device using Line-of-Sight (LOS) or Non-Line-of-Sight (NLOS) Time-of-Arrival (TOA) and Angle-of-Arrival (AOA) information measured at both the mobile device and reference device. This information is used to derive line of possible mobile device position (LPMD).
Chen, Si Wen, Seow, Chee Kiat, Wen, Kai
openaire   +1 more source