Results 91 to 100 of about 17,373 (186)
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 +4 more
openaire +3 more sources
A Normalization Model for Analyzing Multi-Tier Millimeter Wave Cellular Networks
, 2018 Based on the distinguishing features of multi-tier millimeter wave (mmWave) networks such as different transmit powers, different directivity gains from directional beamforming alignment and path loss laws for line-of-sight (LOS) and non-line-of-sight ...
Bai, Zhiquan +6 more
core +1 more source
Optics Express, 2017 We propose and demonstrate a long distance non-line-of-sight (NLOS) visible light signal detection based on the rolling shutter patterning using commercial mobile phone camera. By using our improved rolling shutter pattern demodulation algorithm, such as the background compensation (BC) blooming mitigation, extinction-ratio (ER) enhancement and Bradley
Wei-Chung, Wang +4 more
openaire +2 more sources
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
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 +3 more
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 +3 more
openaire +1 more source
Path Tracing-Inspired Modeling of Non-Line-of-Sight SPAD Data
SensorsNon-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
Under-scanning non-line-of-sight imaging based on convolution approximation and optimization
APL PhotonicsNon-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 +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
Performance Analysis of OFDM 60GHz System and SC-FDE 60GHz System
MATEC Web of Conferences, 2016 In this paper, the performance of 60GHz wireless communication system with SC and OFDM is studied, the models of OFDM 60GHz system and SC 60GHz frequency domain equalization (SC-FDE) system are established, and the bit error rate (BER) performance of ...
Han Xueyan +3 more
doaj +1 more source