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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

Dual-function radar communication (DFRC) systems incorporate both radar and communication functions by sharing spectrum, hardware and radio frequency (RF) chains. In this work, we consider a conceptual DFRC scheduler model which shares RF…

信号处理 · 电气工程与系统科学 2025-11-19 D. R. Raghavendra , V. V. Reddy , A. Mishra

First-order optimization methods, such as SGD and Adam, are widely used for training large-scale deep neural networks due to their computational efficiency and robust performance. However, relying solely on gradient information, these…

机器学习 · 计算机科学 2025-07-29 Yue Hu , Zanxia Cao , Yingchao Liu

In this paper, a deep learning approach is presented for direction of arrival estimation using automotive-grade ultrasonic sensors which are used for driving assistance systems such as automatic parking. A study and implementation of the…

信号处理 · 电气工程与系统科学 2022-02-28 Mohamed Shawki Elamir , Heinrich Gotzig , Raoul Zoellner , Patrick Maeder

This paper investigates typical behaviors like damped oscillations in fractional order (FO) dynamical systems. Such response occurs due to the presence of, what is conceived as, pseudo-damping and meta-damping in some special class of FO…

系统与控制 · 计算机科学 2012-08-02 Saptarshi Das , Indranil Pan , Khrist Sur , Shantanu Das

Scene segmentation is widely used in the field of autonomous driving for environment perception, and semantic scene segmentation (3S) has received a great deal of attention due to the richness of the semantic information it contains. It…

计算机视觉与模式识别 · 计算机科学 2023-03-30 Yaqian Guo , Xin Wang , Ce Li , Shihui Ying

Recent studies have suggested frequency-domain Data augmentation (DA) is effec tive for time series prediction. Existing frequency-domain augmentations disturb the original data with various full-spectrum noises, leading to excess domain…

机器学习 · 计算机科学 2024-05-28 Kai Zhao , Zuojie He , Alex Hung , Dan Zeng

We introduce a new representation learning approach for domain adaptation, in which data at training and test time come from similar but different distributions. Our approach is directly inspired by the theory on domain adaptation…

This paper proposes a deconvolution-based network (DCNN) model for DOA estimation of direct source and early reflections under reverberant scenarios. Considering that the first-order reflections of the sound source also contain spatial…

音频与语音处理 · 电气工程与系统科学 2021-10-25 Shan Gao , Xihong Wu , Tianshu Qu

Domain adaptation (DA) is a quickly expanding area in machine learning that involves adjusting a model trained in one domain to perform well in another domain. While there have been notable progressions, the fundamental concept of numerous…

计算机视觉与模式识别 · 计算机科学 2026-02-11 Yihang Wu , Ahmad Chaddad

The success of deep learning depends heavily on the availability of large datasets, but in robotic manipulation there are many learning problems for which such datasets do not exist. Collecting these datasets is time-consuming and…

机器人学 · 计算机科学 2022-07-21 Peter Mitrano , Dmitry Berenson

Convolutional neural networks have been widely applied to medical image segmentation and have achieved considerable performance. However, the performance may be significantly affected by the domain gap between training data (source domain)…

图像与视频处理 · 电气工程与系统科学 2022-07-28 Junyan Lyu , Yiqi Zhang , Yijin Huang , Li Lin , Pujin Cheng , Xiaoying Tang

Transfer learning across domains with distribution shift remains a fundamental challenge in building robust and adaptable machine learning systems. While adversarial perturbations are traditionally viewed as threats that expose model…

机器学习 · 计算机科学 2025-05-20 Hana Satou , Alan Mitkiy

Domain adaptation (DA) enables knowledge transfer from a labeled source domain to an unlabeled target domain by reducing the cross-domain distribution discrepancy. Most prior DA approaches leverage complicated and powerful deep neural…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Shuang Li , Jinming Zhang , Wenxuan Ma , Chi Harold Liu , Wei Li

Direction-of-arrival (DoA) is a critical parameter in wireless channel estimation. With the ever-increasing requirement of high data rate and ubiquitous devices in wireless communication systems, effective wideband DoA estimation is…

信号处理 · 电气工程与系统科学 2023-11-21 Xiaorui Ding , Wenbo Xu , Yue Wang

In offline reinforcement learning (RL), an RL agent learns to solve a task using only a fixed dataset of previously collected data. While offline RL has been successful in learning real-world robot control policies, it typically requires…

机器学习 · 计算机科学 2024-08-09 Nicholas E. Corrado , Yuxiao Qu , John U. Balis , Adam Labiosa , Josiah P. Hanna

Sensing emerges as a critical challenge in 6G networks, which require simultaneous communication and target sensing capabilities. State-of-the-art super-resolution techniques for the direction of arrival (DoA) estimation encounter…

信号处理 · 电气工程与系统科学 2025-06-17 Murat Babek Salman , Emil Björnson

Achieving high-resolution Direction of Arrival (DoA) recovery typically requires high Signal to Noise Ratio (SNR) and a sufficiently large number of snapshots. This paper presents NUV-DoA algorithm, that augments Bayesian sparse…

信号处理 · 电气工程与系统科学 2023-12-27 Mengyuan Zhao , Guy Revach , Tirza Routtenberg , Nir Shlezinger

Today deep convolutional neural networks (CNNs) push the limits for most computer vision problems, define trends, and set state-of-the-art results. In remote sensing tasks such as object detection and semantic segmentation, CNNs reach the…

计算机视觉与模式识别 · 计算机科学 2022-11-17 Svetlana Illarionova , Sergey Nesteruk , Dmitrii Shadrin , Vladimir Ignatiev , Mariia Pukalchik , Ivan Oseledets

Data augmentation is one of the most important tools in training modern deep neural networks. Recently, great advances have been made in searching for optimal augmentation policies in the image classification domain. However, two key points…

计算机视觉与模式识别 · 计算机科学 2020-08-25 Zhiqiang Tang , Yunhe Gao , Leonid Karlinsky , Prasanna Sattigeri , Rogerio Feris , Dimitris Metaxas