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We present a message passing algorithm for localization and tracking in multipath-prone environments that implicitly considers obstructed line-of-sight situations. The proposed adaptive probabilistic data association algorithm infers the…

信息论 · 计算机科学 2021-03-26 Alexander Venus , Erik Leitinger , Stefan Tertinek , Klaus Witrisal

Consider a microphone array, such as those present in Amazon Echos, conference phones, or self-driving cars. One of the goals of these arrays is to decode the angles in which acoustic signals arrive at them. This paper considers the problem…

声音 · 计算机科学 2021-09-28 Yu-Lin Wei , Romit Roy Choudhury

We discuss the use of angle of arrival (AoA) as an authentication measure in analog array multiple-input multiple-output (MIMO) systems. A base station equipped with an analog array authenticates users based on the AoA estimated from…

密码学与安全 · 计算机科学 2024-07-12 Muralikrishnan Srinivasan , Linda Senigagliesi , Hui Chen , Arsenia Chorti , Marco Baldi , Henk Wymeersch

The existing localization systems for indoor applications basically rely on wireless signal. With the massive deployment of low-cost cameras, the visual image based localization become attractive as well. However, in the existing…

信号处理 · 电气工程与系统科学 2020-08-21 Yu Wang , Guangbing Zhou , Chenlu Xiang , Shunqing Zhang , Shugong Xu

We propose a probabilistic filtering method which fuses joint measurements with depth images to yield a precise, real-time estimate of the end-effector pose in the camera frame. This avoids the need for frame transformations when using it…

机器人学 · 计算机科学 2016-11-28 Cristina Garcia Cifuentes , Jan Issac , Manuel Wüthrich , Stefan Schaal , Jeannette Bohg

Angle-of-Arrival estimation technology, with its potential advantages, emerges as an intriguing choice for indoor localization. Notably, it holds the promise of reducing installation costs. In contrast to ToF/TDoA based systems, AoA-based…

This study demonstrates a WiFi indoor positioning system using Deep Learning algorithms. A new method using fitting function in MATLAB will be utilized to compute the path loss coefficient and log-normal fading variance. To reduce the…

信号处理 · 电气工程与系统科学 2023-07-06 Minxue Cai , Zihuai Lin

Direction finding and positioning systems based on RF signals are significantly impacted by multipath propagation, particularly in indoor environments. Existing algorithms (e.g MUSIC) perform poorly in resolving Angle of Arrival (AoA) in…

信号处理 · 电气工程与系统科学 2021-12-13 Zhuangzhuang Dai , Yuhang He , Tran Vu , Niki Trigoni , Andrew Markham

We consider the problem of sensor localization in a wireless network in a multipath environment, where time and angle of arrival information are available at each sensor. We propose a distributed algorithm based on belief propagation, which…

分布式、并行与集群计算 · 计算机科学 2011-09-28 Mei Leng , Wee Peng Tay , Tony Q. S. Quek

mmWave communication has come up as the unexplored spectrum for 5G services. With new standards for 5G NR positioning, more off-the-shelf platforms and algorithms are needed to perform indoor positioning. An object can be accurately…

信号处理 · 电气工程与系统科学 2024-03-15 Neharika Valecha , Jesus Omar Lacruz , Michael Lentmaier , Joerg Widmer , Fredrik Tufvesson

Localization in 5G and 6G networks is essential for important use cases such as intelligent transportation, smart factories, and smart cities. Although deep learning has enabled improving localization accuracy, depending on the deployment…

机器学习 · 计算机科学 2026-05-07 Bac Trinh-Nguyen , Sara Berri , Sin G. Teo , Tram Truong-Huu , Arsenia Chorti

Indoor localization based on SIngle Of Fingerprint (SIOF) is rather susceptible to the changing environment, multipath, and non-line-of-sight (NLOS) propagation. Building SIOF is also a very time-consuming process. Recently, we first…

机器学习 · 统计学 2017-12-21 Xiansheng Guo , Nirwan Ansari , Huiyong Li

The angle of Arrival (AoA) estimation is of great interest in modern communication systems. Traditional maximum likelihood-based iterative algorithms are sensitive to initialization and cannot be used online. We propose a Bayesian method to…

信号处理 · 电气工程与系统科学 2021-10-18 Akshay Sharma , Nancy Nayak , Sheetal Kalyani

This paper explores the potential of 5G new radio (NR) Time-of-Arrival (TOA) data for indoor drone localization under different scenarios and conditions when fused with inertial measurement unit (IMU) data. Our approach involves performing…

机器人学 · 计算机科学 2023-06-19 Meisam Kabiri , Claudio Cimarelli , Hriday Bavle , Jose Luis Sanchez-Lopez , Holger Voos

The recently released Bluetooth 5.1 specification introduces fine-grained positioning capabilities in this wireless technology, which is deemed essential to context-/location-based Internet of Things (IoT) applications. In this paper, we…

网络与互联网体系结构 · 计算机科学 2019-09-19 Marco Cominelli , Paul Patras , Francesco Gringoli

The localization speed and accuracy in the indoor scenario can greatly impact the Quality of Experience of the user. While many individual machine learning models can achieve comparable positioning performance, their prediction mechanisms…

信号处理 · 电气工程与系统科学 2022-07-19 Lucie Klus , Darwin Quezada-Gaibor , Joaquın Torres-Sospedra , Elena Simona Lohan , Carlos Granell , Jari Nurmi

Most existing fingerprints-based indoor localization approaches are based on some single fingerprints, such as received signal strength (RSS), channel impulse response (CIR), and signal subspace. However, the localization accuracy obtained…

机器学习 · 统计学 2017-12-21 Xiansheng Guo , Nirwan Ansari

This paper investigates parametric direction-of-arrival (DOA) estimation in a particular context: i) each sensor is characterized by an unknown complex gain and ii) the array consists of a collection of subarrays which are substantially…

Extremely large-scale antenna array (ELAA) systems emerge as a promising technology in beyond 5G and 6G wireless networks to support the deployment of distributed architectures. This paper explores the use of ELAAs to enable joint…

In this paper, we present an analytical framework for the joint characterization of the 3D direction of arrival (DoA), i.e., azimuth and elevation components, and time of arrival (ToA) in multipath environments. The analytical framework is…

信号处理 · 电气工程与系统科学 2024-03-26 Alejandro Ramírez-Arroyo , Antonio Alex-Amor , Rubén Medina , Pablo Padilla , Juan F. Valenzuela-Valdés