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At hybrid analog-digital (HAD) transceiver, an improved HAD rotational invariance techniques (ESPRIT), called I-HAD-ESPRIT, is proposed to measure the direction of arrival (DOA) of desired user, where the phase ambiguity due to HAD…

Information Theory · Computer Science 2018-12-04 Feng Shu , Ling Xu , Jinyong Lin , Jingsong Hu , Lingqing Gui , Jun Li , Jiangzhou Wang

Multi-path sensing, which aims to extract the geometric attributes of multiple propagation paths, is expected to be a key functionality of 6G. A movable antenna (MA) can enable this functionality by creating a synthetic aperture through…

Information Theory · Computer Science 2026-04-14 Jaehong Kim , Jihong Park , Changsheng You , Seung-Woo Ko

The output of physical systems is often accessible by measurements such as the 3D position of a robotic arm actuated by many actuators or the speckle patterns formed by shining the spot of a laser pointer on a wall. The selection of the…

Binaural rendering of ambisonic signals is of broad interest to virtual reality and immersive media. Conventional methods often require manually measured Head-Related Transfer Functions (HRTFs). To address this issue, we collect a paired…

Sound · Computer Science 2022-11-07 Yin Zhu , Qiuqiang Kong , Junjie Shi , Shilei Liu , Xuzhou Ye , Ju-chiang Wang , Junping Zhang

This paper investigates the hybrid source localization problem using the four radio measurements - time of arrival (TOA), time difference of arrival (TDOA), received signal strength (RSS), and angle of arrival (AOA). First, after invoking…

Signal Processing · Electrical Eng. & Systems 2025-10-07 Kuntal Panwar , Prabhu Babu , R. Jyothi

Due to a high spatial angle resolution and low circuit cost of massive hybrid analog and digital (HAD) multiple-input multiple-output (MIMO), it is viewed as a valuable green communication technology for future wireless networks. Combining…

Information Theory · Computer Science 2023-08-08 Feng Shu , Yiwen Chen , Xichao Zhan , Wenlong Cai , Mengxing Huang , Qijuan Jie , Yifang Li , Baihua Shi , Jiangzhou Wang , Xiaohu You

The scale of wireless technologies penetration in our daily lives, primarily triggered by the Internet-of-things (IoT)-based smart cities, is beaconing the possibilities of novel localization and tracking techniques. Recently, low-power…

Signal Processing · Electrical Eng. & Systems 2020-06-03 Mahnoor Anjum , Muhammad Abdullah Khan , Syed Ali Hassan , Aamir Mahmood , Hassaan Khaliq Qureshi , Mikael Gidlund

This paper presents a unified framework for robust three-dimensional (3-D) source localization using a network of sensors equipped with one-dimensional (1-D) linear arrays. While such arrays offer practical advantages in terms of cost and…

Signal Processing · Electrical Eng. & Systems 2025-11-12 Ehsan Alamdari , Rouhollah Amiri

Radio-frequency (RF) sensing underpins applications ranging from radar and wireless communication to biomedical and quantum measurement, where detection sensitivity at low signal-to-noise ratio (SNR) directly limits the achievable range,…

Signal Processing · Electrical Eng. & Systems 2026-05-11 Bo-Han Wu , Shi-Yuan Ma , Mahmoud Jalali Mehrabad , Mingran Jia , Sri Krishna Vadlamani , Hyeongrak Choi , Dirk Englund

Deep learning-based bilateral grid processing has emerged as a promising solution for image enhancement, inherently encoding spatial and intensity information while enabling efficient full-resolution processing through slicing operations.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Junyu Lou , Xiaorui Zhao , Kexuan Shi , Shuhang Gu

Direction of arrival (DOA) estimation is a fundamental problem in array signal processing with applications spanning radar, sonar, wireless communications, and acoustic signal processing. This tutorial survey provides a comprehensive…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Amgad A. Salama

Encoding input coordinates with sinusoidal functions into multilayer perceptrons (MLPs) has proven effective for implicit neural representations (INRs) of low-dimensional signals, enabling the modeling of high-frequency details. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-10-29 Diana Aldana , João Paulo Lima , Daniel Csillag , Daniel Perazzo , Haoan Feng , Luiz Velho , Tiago Novello

We propose modeling an angle-of-arrival (AOA) positioning measurement as a von Mises-Fisher (VMF) distributed unit vector instead of the conventional normally distributed azimuth and elevation measurements. Describing the 2-dimensional AOA…

Systems and Control · Computer Science 2017-09-11 Henri Nurminen , Laura Suomalainen , Simo Ali-Löytty , Robert Piché

Positioning accuracy is a critical requirement for vehicle-to-everything (V2X) use cases. Therefore, this paper derives the theoretical limits of estimation for the position and orientation of vehicles in a cooperative vehicle-to-vehicle…

Signal Processing · Electrical Eng. & Systems 2023-06-30 Joo-Hyun Jo , Jae-Nam Shim , Byoungnam , Kim , Chan-Byoung Chae , Dong Ku Kim

Accurately reconstructing road surfaces is pivotal for various applications especially in autonomous driving. This paper introduces a position encoding Multi-Layer Perceptrons (MLPs) framework to reconstruct road surfaces, with input as…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 Ruibo Wang , Song Zhang , Ping Huang , Donghai Zhang , Haoyu Chen

In low altitude UAV communications, accurate channel estimation remains challenging due to the dynamic nature of air to ground links, exacerbated by high node mobility and the use of large scale antenna arrays, which introduce hybrid near…

Information Theory · Computer Science 2025-10-24 Wenli Yuan , Kan Yu , Xiaowu Liu , Kaixuan Li , Qixun Zhang , Zhiyong Feng

Localization of a wireless mobile device or a robot in indoor and GPS-denied environments is a difficult problem, particularly in dynamic scenarios where traditional cameras and LIDAR-based alternative sensing and localization modalities…

Robotics · Computer Science 2022-01-14 Ehsan Latif , Ramviyas Parasuraman

Implicit Neural Representations (INRs) employ neural networks to represent continuous functions by mapping coordinates to the corresponding values of the target function, with applications e.g., inverse graphics. However, INRs face a…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Mingze Ma , Qingtian Zhu , Yifan Zhan , Zhengwei Yin , Hongjun Wang , Yinqiang Zheng

AI/ML-based beam selection methods coupled with location information effectively reduce beam training overhead. Unfortunately, heterogeneous antenna hardware with varying dimensions, orientations, codebooks, element patterns, and…

Signal Processing · Electrical Eng. & Systems 2026-02-24 Ibrahim Kilinc , Robert W. Heath

The adoption of intelligent systems with Artificial Neural Networks (ANNs) embedded in hardware for real-time applications currently faces a growing demand in fields like the Internet of Things (IoT) and Machine to Machine (M2M). However,…

Signal Processing · Electrical Eng. & Systems 2020-10-01 Caio J. B. V. Guimarães , Marcelo A. C. Fernandes