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Related papers: Robust Covariance-Based DoA Estimation under Weath…

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Direction of arrival (DOA) estimation is a classical problem in signal processing with many practical applications. Its research has recently been advanced owing to the development of methods based on sparse signal reconstruction. While…

Applications · Statistics 2016-11-18 Zai Yang , Lihua Xie , Cishen Zhang

Current LiDAR-based Vehicle-to-Everything (V2X) multi-agent perception systems have shown the significant success on 3D object detection. While these models perform well in the trained clean weather, they struggle in unseen adverse weather…

Computer Vision and Pattern Recognition · Computer Science 2025-03-21 Baolu Li , Jinlong Li , Xinyu Liu , Runsheng Xu , Zhengzhong Tu , Jiacheng Guo , Xiaopeng Li , Hongkai Yu

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…

Signal Processing · Electrical Eng. & Systems 2024-03-26 Alejandro Ramírez-Arroyo , Antonio Alex-Amor , Rubén Medina , Pablo Padilla , Juan F. Valenzuela-Valdés

A new Doppler radar initial orbit determination algorithm with embedded uncertainty quantification capabilities is presented. The method is based on a combination of Gauss' and Lambert's solvers. The whole process is carried out in the…

Numerical Analysis · Mathematics 2022-05-02 M. Losacco , R. Armellin , C. Yanez , S. Lizy-Destrez , L. Pirovano , F. Sanfedino

We present adaptive strategies for antenna selection for Direction of Arrival (DoA) estimation of a far-field source using TDM MIMO radar with linear arrays. Our treatment is formulated within a general adaptive sensing framework that uses…

Systems and Control · Computer Science 2017-04-12 David Mateos-Núñez , María A. González-Huici , Renato Simoni , Stefan Brüggenwirth

This paper presents a novel framework to accelerate route prediction in Drone-as-a-Service operations through weather-aware deep learning models. While classical path-planning algorithms, such as A* and Dijkstra, provide optimal solutions,…

Machine Learning · Computer Science 2026-01-08 Kamal Mohamed , Lillian Wassim , Ali Hamdi , Khaled Shaban

Conventional direction-of-arrival (DoA) estimation methods rely on multi-antenna arrays, which are costly to implement on size-constrained Bluetooth Low Energy (BLE) devices. Virtual antenna array (VAA) techniques enable DoA estimation with…

Signal Processing · Electrical Eng. & Systems 2026-02-04 Jincheng Xie , Yili Deng , Jiguang He , Pengyu Wang , Miaomiao Dong , Rui Tang , Zhongyi Huang

This paper aims at presenting a numerical investigation of the statistical efficiency of the MUSIC (with different covariance matrix estimates) and the IAA-APES Direction of Arrivals (DOAs) estimation algorithms under a general Complex…

Signal Processing · Electrical Eng. & Systems 2019-03-04 Stefano Fortunati , Fulvio Gini , Maria S. Greco

Conventional direction of arrival (DOA) estimators are based on array processing using either time differences or beamforming. The proposed approach is based on the received power at each microphone, which enables simple hardware, low…

Signal Processing · Electrical Eng. & Systems 2025-09-16 Gustav Zetterqvist , Fredrik Gustafsson , Gustaf Hendeby

We consider the problem of estimating the direction-of-arrival (DoA) of a desired source located in a known region of interest in the presence of interfering sources and multipath. We propose an approach that precedes the DoA estimation and…

Signal Processing · Electrical Eng. & Systems 2024-09-13 Amitay Bar , Joseph S. Picard , Israel Cohen , Ronen Talmon

Data assimilation (DA) enables hydrologic models to update their internal states using near-real-time observations for more accurate forecasts. With deep neural networks like long short-term memory (LSTM), using either lagged observations…

Fluid Dynamics · Physics 2025-02-25 Amirmoez Jamaat , Yalan Song , Farshid Rahmani , Jiangtao Liu , Kathryn Lawson , Chaopeng Shen

Employing data augmentation methods to enhance perception performance in adverse weather has attracted considerable attention recently. Most of the LiDAR augmentation methods post-process the existing dataset by physics-based models or…

Robotics · Computer Science 2023-12-21 Donglin Yang , Zhenfeng Liu , Wentao Jiang , Guohang Yan , Xing Gao , Botian Shi , Si Liu , Xinyu Cai

Direction-of-arrival estimation of multiple speakers in a room is an important task for a wide range of applications. In particular, challenging environments with moving speakers, reverberation and noise, lead to significant performance…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-24 Daniel A. Mitchell , Boaz Rafaely , Anurag Kumar , Vladimir Tourbabin

A new class of disturbance covariance matrix estimators for radar signal processing applications is introduced following a geometric paradigm. Each estimator is associated with a given unitary invariant norm and performs the sample…

Applications · Statistics 2018-02-14 Augusto Aubry , Antonio De Maio , Luca Pallotta

In the classical supervised learning settings, classifiers are fit with the assumption of balanced label distributions and produce remarkable results on the same. In the real world, however, these assumptions often bend and in turn…

Computer Vision and Pattern Recognition · Computer Science 2023-05-16 Aboli Marathe , Sanjana Prabhu

There is a great need to accurately predict short-term precipitation, which has socioeconomic effects such as agriculture and disaster prevention. Recently, the forecasting models have employed multi-source data as the multi-modality input,…

Atmospheric and Oceanic Physics · Physics 2024-09-12 Min Chen , Hao Yang , Shaohan Li , Xiaolin Qin

Electromagnetic (EM) vector sensor arrays can track both the polarisation and direction of arrival (DOA) of the impinging signals. For linear crossed-dipole arrays, as shown by our analysis, due to inherent limitation of the structure, it…

Signal Processing · Electrical Eng. & Systems 2020-04-21 Xiang Lan , Wei Liu , Henry Y. T. Ngan

The forecasting skill of numerical weather prediction (NWP) models critically depends on the accurate initial conditions, also known as analysis, provided by data assimilation (DA). Traditional DA methods often face a trade-off between…

Atmospheric and Oceanic Physics · Physics 2024-11-28 Yanfei Xiang , Weixin Jin , Haiyu Dong , Mingliang Bai , Zuliang Fang , Pengcheng Zhao , Hongyu Sun , Kit Thambiratnam , Qi Zhang , Xiaomeng Huang

This paper adresses the statistical performance of subspace DoA estimation using a sensor array, in the asymptotic regime where the number of samples and sensors both converge to infinity at the same rate. Improved subspace DoA estimators…

Applications · Statistics 2023-07-19 Pascal Vallet , Xavier Mestre , Philippe Loubaton

Data assimilation (DA) in the geophysical sciences remains the cornerstone of robust forecasts from numerical models. Indeed, DA plays a crucial role in the quality of numerical weather prediction, and is a crucial building block that has…