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We study efficient deep learning training algorithms that process received wireless signals, if a test Signal to Noise Ratio (SNR) estimate is available. We focus on two tasks that facilitate source identification: 1- Identifying the…

Machine Learning · Computer Science 2020-04-21 Xingchen Wang , Shengtai Ju , Xiwen Zhang , Sharan Ramjee , Aly El Gamal

Radio emitter recognition in dense multi-user environments is an important tool for optimizing spectrum utilization, identifying and minimizing interference, and enforcing spectrum policy. Radio data is readily available and easy to obtain…

Machine Learning · Computer Science 2017-01-18 Timothy J. O'Shea , Nathan West , Matthew Vondal , T. Charles Clancy

Brain signals could be used to control devices to assist individuals with disabilities. Signals such as electroencephalograms are complicated and hard to interpret. A set of signals are collected and should be classified to identify the…

Signal Processing · Electrical Eng. & Systems 2021-05-25 Ghazale Ghorbanzade , Zahra Nabizadeh-ShahreBabak , Shadrokh Samavi , Nader Karimi , Ali Emami , Pejman Khadivi

In this article, we introduce iterative deterministic equivalents as a novel technique for the performance analysis of communication systems whose channels are modeled by complex combinations of independent random matrices. This technique…

Information Theory · Computer Science 2011-12-20 Jakob Hoydis , Romain Couillet , Merouane Debbah

Radio signal classification has a very wide range of applications in the field of wireless communications and electromagnetic spectrum management. In recent years, deep learning has been used to solve the problem of radio signal…

Machine Learning · Computer Science 2019-06-27 Shichuan Chen , Shilian Zheng , Lifeng Yang , Xiaoniu Yang

Early time classification algorithms aim to label a stream of features without processing the full input stream, while maintaining accuracy comparable to that achieved by applying the classifier to the entire input. In this paper, we…

Machine Learning · Computer Science 2024-02-02 Liran Ringel , Regev Cohen , Daniel Freedman , Michael Elad , Yaniv Romano

In this paper we propose a novel machine-learning method for anomaly detection applicable to data with periodic characteristics where randomly varying period lengths are explicitly allowed. A multi-dimensional time series analysis is…

Signal Processing · Electrical Eng. & Systems 2019-05-22 Lia Ahrens , Julian Ahrens , Hans D. Schotten

Specific emitter identification (SEI) plays an increasingly crucial and potential role in both military and civilian scenarios. It refers to a process to discriminate individual emitters from each other by analyzing extracted…

Signal Processing · Electrical Eng. & Systems 2022-11-29 Xue Fu , Yang Peng , Yuchao Liu , Yun Lin , Guan Gui , Haris Gacanin , Fumiyuki Adachi

We present an approach to adaptively utilize deep neural networks in order to reduce the evaluation time on new examples without loss of accuracy. Rather than attempting to redesign or approximate existing networks, we propose two schemes…

Machine Learning · Computer Science 2017-09-20 Tolga Bolukbasi , Joseph Wang , Ofer Dekel , Venkatesh Saligrama

This paper indicates that the sensitivity and accuracy of an infrared radiometer for emissivity measurements depends not only on its design and the measurement method, but also on the spurious radiation. This spurious radiation must be…

Automatic modulation recognition (AMR) critically contributes to spectrum sensing, dynamic spectrum access, and intelligent communications in cognitive radio systems. The introduction of deep learning has greatly improved the accuracy of…

Signal Processing · Electrical Eng. & Systems 2024-12-12 Shuo Wang , Kuojun Yang , Zelin Ji , Qinchuan Zhang , Huiqing Pan

In this paper a spline based integral approximation is utilized to propose a sequence of approximations to the error function that converge at a significantly faster manner than the default Taylor series. The approximations can be improved…

General Mathematics · Mathematics 2022-07-27 Roy M. Howard

Automatic modulation classification (AMC) is an important task for modern communication systems; however, it is a challenging problem when signal features and precise models for generating each modulation may be unknown. We present a new…

Machine Learning · Statistics 2016-05-18 Benjamin Migliori , Riley Zeller-Townson , Daniel Grady , Daniel Gebhardt

In this work, we investigate the feasibility and effectiveness of employing deep learning algorithms for automatic recognition of the modulation type of received wireless communication signals from subsampled data. Recent work considered a…

Signal Processing · Electrical Eng. & Systems 2019-01-18 Sharan Ramjee , Shengtai Ju , Diyu Yang , Xiaoyu Liu , Aly El Gamal , Yonina C. Eldar

For many tasks of data analysis, we may only have the information of the explanatory variable and the evaluation of the response values are quite expensive. While it is impractical or too costly to obtain the responses of all units, a…

Computation · Statistics 2023-04-07 Wei Zheng , Ting Tian , Xueqin Wang

In this paper, we propose an anomaly detection algorithm for machine sounds with a deep complex network trained by self-supervision. Using the fact that phase continuity information is crucial for detecting abnormalities in time-series…

Audio and Speech Processing · Electrical Eng. & Systems 2023-12-22 Miseul Kim , Minh Tri Ho , Hong-Goo Kang

Along the life of the IUE project, a large archive with spectral data has been generated, requiring automated classification methods to be analyzed in an objective form. Previous automated classification methods used with IUE spectra were…

Astrophysics · Physics 2019-08-15 E. F. Vieira , J. D. Ponz

Based on neural network and adaptive subspace approximation method, we propose a new machine learning method for solving partial differential equations. The neural network is adopted to build the basis of the finite dimensional subspace.…

Numerical Analysis · Mathematics 2024-12-04 Zhongshuo Lin , Yifan Wang , Hehu Xie

Subsampling of received wireless signals is important for relaxing hardware requirements as well as the computational cost of signal processing algorithms that rely on the output samples. We propose a subsampling technique to facilitate the…

Signal Processing · Electrical Eng. & Systems 2020-05-12 Sharan Ramjee , Shengtai Ju , Diyu Yang , Xiaoyu Liu , Aly El Gamal , Yonina C. Eldar

The era of huge data necessitates highly efficient machine learning algorithms. Many common machine learning algorithms, however, rely on computationally intensive subroutines that are prohibitively expensive on large datasets. Oftentimes,…

Machine Learning · Computer Science 2023-09-26 Mo Tiwari