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This paper deals with the problem of detecting maritime targets embedded in nonhomogeneous sea clutter, where limited number of secondary data is available due to the heterogeneity of sea clutter. A class of linear discriminant analysis…

信号处理 · 电气工程与系统科学 2024-09-27 Xiaoqiang Hua , Linyu Peng , Weijian Liu , Yongqiang Cheng , Hongqiang Wang , Huafei Sun , Zhenghua Wang

In many scientific settings there is a need for adaptive experimental design to guide the process of identifying regions of the search space that contain as many true positives as possible subject to a low rate of false discoveries (i.e.…

机器学习 · 统计学 2020-08-18 Lalit Jain , Kevin Jamieson

One-bit sampling has emerged as a promising technique in multiple-input multiple-output (MIMO) radar systems due to its ability to significantly reduce data volume and processing requirements. Nevertheless, current detection methods have…

信号处理 · 电气工程与系统科学 2024-04-29 Yu-Hang Xiao , David Ramírez , Lei Huang , Xiao Peng Li , Hing Cheung So

Dual functional radar and communication (DFRC) systems are a viable approach to extend the services of future communication systems. Most studies designing DFRC systems assume that the target direction is known. In our paper, we address a…

信号处理 · 电气工程与系统科学 2024-12-11 Mateen Ashraf , Anna Gaydamaka , Dmitri Moltchanov , John Thompson , Mikko Valkama , Bo Tan

For object detection detectors, enhancing model performance hinges on the ability to simultaneously consider inconsistencies across tasks and focus on difficult-to-train samples. Achieving this necessitates incorporating information from…

计算机视觉与模式识别 · 计算机科学 2024-09-02 Yanquan Huang , Liu Wei Zhen , Yun Hao , Mengyuan Zhang , Qingyao Wu , Zikun Deng , Xueming Liu , Hong Deng

Detecting the presence of target subspace signals with unknown clutters is a well-known hard problem encountered in various signal processing applications. Traditional methods fails to solve this problem because prior knowledge of clutter…

信息论 · 计算机科学 2015-04-23 Hailong Shi , Hao Zhang , Xiqin Wang

We study a novel communication mechanism, ambient backscatter, that utilizes radio frequency (RF) signals transmitted from an ambient source as both energy supply and information carrier to enable communications between low-power devices.…

信息论 · 计算机科学 2016-12-26 Jing Qian , Feifei Gao , Gongpu Wang , Shi Jin , Hongbo Zhu

In the study of computer codes, filling space as uniformly as possible is important to describe the complexity of the investigated phenomenon. However, this property is not conserved by reducing the dimension. Some numeric experiment…

机器学习 · 计算机科学 2008-02-19 Jessica Franco , Laurent Carraro , Olivier Roustant , Astrid Jourdan

An introduction to the theory of sliding window detection processes, used as alternatives to optimal Neyman-Pearson based radar detectors, is presented. Included is an outline of their historical development, together with an explanation…

应用统计 · 统计学 2017-09-29 Graham V. Weinberg

Mistakes/uncertainties in object detection could lead to catastrophes when deploying robots in the real world. In this paper, we measure the uncertainties of object localization to minimize this kind of risk. Uncertainties emerge upon…

计算机视觉与模式识别 · 计算机科学 2020-07-03 Yihui He , Jianren Wang

Radiation detectors deployed as part of a large urban network or for homeland security monitoring must maintain reliable energy calibration even when subjected to substantial variations in temperature and ambient background radiation.…

Reliable tracking algorithms are essential for automated driving. However, the existing consistency measures are not sufficient to meet the increasing safety demands in the automotive sector. Therefore, this work presents a novel method for…

信号处理 · 电气工程与系统科学 2022-06-16 Thomas Griebel , Johannes Müller , Paul Geisler , Charlotte Hermann , Martin Herrmann , Michael Buchholz , Klaus Dietmayer

Static gamma-ray detector systems that are deployed outdoors for radiological monitoring purposes experience time- and spatially-varying natural backgrounds and encounters with man-made nuisance sources. In order to be sensitive to illicit…

It was recently shown that low rank matrix completion theory can be employed for designing new sampling schemes in the context of MIMO radars, which can lead to the reduction of the high volume of data typically required for accurate target…

信息论 · 计算机科学 2023-07-19 Dionysios S. Kalogerias , Athina P. Petropulu

The deployment of multimodal models in high-stakes domains, such as self-driving vehicles and medical diagnostics, demands not only strong predictive performance but also reliable mechanisms for detecting failures. In this work, we address…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Moru Liu , Hao Dong , Olga Fink , Mario Trapp

With the advent of big data across multiple high-impact applications, we are often facing the challenge of complex heterogeneity. The newly collected data usually consist of multiple modalities and are characterized with multiple labels,…

机器学习 · 计算机科学 2022-07-27 Lecheng Zheng , Jinjun Xiong , Yada Zhu , Jingrui He

Detector counting rate nonlinearity, though a known problem, is commonly ignored in the analysis of angle resolved photoemission spectroscopy where modern multichannel electron detection schemes using analog intensity scales are used. We…

仪器与探测器 · 物理学 2015-05-12 T. J. Reber , N. C. Plumb , J. A. Waugh , D. S. Dessau

Reliable uncertainty estimation is crucial for robust object detection in autonomous driving. However, previous works on probabilistic object detection either learn predictive probability for bounding box regression in an un-supervised…

计算机视觉与模式识别 · 计算机科学 2020-08-11 Di Feng , Lars Rosenbaum , Fabian Timm , Klaus Dietmayer

As in other estimation scenarios, likelihood based estimation in the normal mixture set-up is highly non-robust against model misspecification and presence of outliers (apart from being an ill-posed optimization problem). A robust…

统计方法学 · 统计学 2023-12-20 Soumya Chakraborty , Ayanendranath Basu , Abhik Ghosh

Object search -- the problem of finding a target object in a cluttered scene -- is essential to solve for many robotics applications in warehouse and household environments. However, cluttered environments entail that objects often occlude…

机器人学 · 计算机科学 2019-09-06 Andrew Price , Linyi Jin , Dmitry Berenson