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相关论文: Statistical LOS/NLOS Classification for UWB Channe…

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This paper proposes an ultra-wideband (UWB) aided localization and mapping system that leverages on inertial sensor and depth camera. Inspired by the fact that visual odometry (VO) system, regardless of its accuracy in the short term, still…

机器人学 · 计算机科学 2018-02-27 Chen Wang , Handuo Zhang , Thien-Minh Nguyen , Lihua Xie

This paper focuses on the problem of localising a transmitting mobile station (MS) using multiple cooperative base stations (BSs). There are two technical difficulties: one is the data association between intermediate parameters and…

信号处理 · 电气工程与系统科学 2019-11-21 Hengyan Liu , Wei Dai , Yuan Shen

Ultra-wideband (UWB) technology has become very popular for indoor positioning and distance estimation (DE) systems due to its decimeter-level accuracy achieved when using time-of-flight-based techniques. Techniques for DE relying on signal…

信号处理 · 电气工程与系统科学 2022-12-13 Leo Botler , Konrad Diwold , Kay Römer

Blocking objects (blockages) between a transmitter and receiver cause wireless communication links to transition from line-of-sight (LOS) to non-line-of-sight (NLOS) propagation, which can greatly reduce the received power, particularly at…

信息论 · 计算机科学 2017-01-10 Abhishek K. Gupta , Jeffrey G. Andrews , Robert W. Heath

During this decade, Wireless Sensor Networks (WSNs) brought an increasing interest in the industrial and research world. One of their applications is the indoor localization. The ranging, i.e. the distance evaluation mechanism between…

网络与互联网体系结构 · 计算机科学 2016-03-23 Nezo Ibrahim Fofana , Adrien van den Bossche , Rejane Dalce , Thierry Val

A composite impulse radio ultra-wideband (IR-UWB) communication system is presented. The proposed system model aims to transmit UWB pulses over several kilometers through free-space optical (FSO) links and depending on the link design, the…

光学 · 物理学 2013-03-25 Kemal Davaslioglu

Passive non-line-of-sight (NLOS) imaging has witnessed rapid development in recent years, due to its ability to image objects that are out of sight. The light transport condition plays an important role in this task since changing the…

计算机视觉与模式识别 · 计算机科学 2025-01-03 Jiarui Zhang , Ruixu Geng , Xiaolong Du , Yan Chen , Houqiang Li , Yang Hu

Radio-based simultaneous localization and mapping (SLAM) has the potential to provide precise user equipment (UE) localization and environmental sensing capabilities by exploiting radio signals. Most existing approaches leverage…

信号处理 · 电气工程与系统科学 2026-03-04 Xi Zhang , Yu Ge , Ossi Kaltiokallio , Musa Furkan Keskin , Henk Wymeersch , Mikko Valkama

Location information is often used as a proxy to guarantee the performance of a wireless communication link. However, localization errors can result in a significant mismatch with the guarantees, particularly detrimental to users operating…

Relative localization between autonomous robots without infrastructure is crucial to achieve their navigation, path planning, and formation in many applications, such as emergency response, where acquiring a prior knowledge of the…

In this paper, we aim to determine the location information of a node deployed in Wireless Sensor Networks (WSN). We estimate the position of an unknown source node using localization based on linear approach on a single simulation…

网络与互联网体系结构 · 计算机科学 2014-03-27 S Ravindra , S N Jagadeesha

Optical Wireless Communication (OWC) has gained significant attention due to its high-speed data transmission and throughput. Optical wireless channels are often assumed to be flat, but we evaluate frequency selective channels to consider…

信号处理 · 电气工程与系统科学 2026-01-21 Dianxin Luan , John Thompson

Conventional sensor systems record information about directly visible objects, whereas occluded scene components are considered lost in the measurement process. Non-line-of-sight (NLOS) methods try to recover such hidden objects from their…

The need to carry out analytical studies of wireless systems often motivates the usage of simplified models which, despite their tractability, can easily lead to an overestimation of the achievable performance. In the case of dense small…

信息论 · 计算机科学 2015-06-08 Carlo Galiotto , Nuno K. Pratas , Nicola Marchetti , Linda Doyle

Constrained environments, such as indoor and urban settings, present a significant challenge for accurate moving object positioning due to the diminished line-of-sight (LoS)communication with the wireless anchor used for positioning. The…

信号处理 · 电气工程与系统科学 2024-03-04 Qamar Bader , Sharief Saleh , Mohamed Elhabiby , Aboelmagd Noureldin

As an emerging technology that has attracted huge attention, non-line-of-sight (NLOS) imaging can reconstruct hidden objects by analyzing the diffuse reflection on a relay surface, with broad application prospects in the fields of…

图像与视频处理 · 电气工程与系统科学 2021-11-23 Ruixu Geng , Yang Hu , Yan Chen

The emergence of large-scale wireless networks with partially-observable and time-varying dynamics has imposed new challenges on the design of optimal control policies. This paper studies efficient scheduling algorithms for wireless…

网络与互联网体系结构 · 计算机科学 2023-08-08 Quang Minh Nguyen , Eytan Modiano

Bluetooth Low Energy (BLE) CTE transmissions provide in-phase and quadrature (IQ) samples whose empirical statistics are strongly governed by the propagation regime. in particular, the distributions differ markedly between line-of-sight…

信息论 · 计算机科学 2026-02-03 Hamed Talebian , Aamir Mahmood , Mikael Gidlund

We study the problem of high accuracy localization of mobile nodes in a multipath-rich environment where sub-meter accuracies are required. We employ a peer-to-peer framework where the vehicles/nodes can get pairwise multipath-degraded…

网络与互联网体系结构 · 计算机科学 2012-11-09 Venkatesan. N. Ekambaram , Kannan Ramchandran , Raja Sengupta

As transceiver elevation angles increase from small to large, existing ultraviolet (UV) non-line-of-sight (NLoS) models encounter two challenges: i) cannot estimate the channel characteristics of UV NLoS communication scenarios when there…

信号处理 · 电气工程与系统科学 2024-11-26 Tianfeng Wu , Fang Yang , Tian Cao , Ling Cheng , Yupeng Chen , Jian Song , Julian Cheng , Zhu Han