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We propose an innovative meteorological radar, which uses reduced number of spatiotemporal samples without compromising the accuracy of target information. Our approach extends recent research on compressed sensing (CS) for radar remote…

信息论 · 计算机科学 2014-06-16 Kumar Vijay Mishra , Anton Kruger , Witold F. Krajewski

Recent progress in compressive sensing states the importance of exploiting intrinsic structures in sparse signal reconstruction. In this letter, we propose a Markov random field (MRF) prior in conjunction with fast iterative…

信号处理 · 电气工程与系统科学 2018-12-07 Shiyong Li , Moeness Amin , Guoqiang Zhao , Houjun Sun

In orthogonal frequency division modulation (OFDM) communication systems, channel state information (CSI) is required at receiver due to the fact that frequency-selective fading channel leads to disgusting inter-symbol interference (ISI)…

信息论 · 计算机科学 2015-04-22 Guan Gui , Li Xu , Lin Shan , Fumiyuki Adachi

Compressed sensing (CS) or sparse signal reconstruction (SSR) is a signal processing technique that exploits the fact that acquired data can have a sparse representation in some basis. One popular technique to reconstruct or approximate the…

信息论 · 计算机科学 2014-05-08 Esa Ollila , Hyon-Jung Kim , Visa Koivunen

We propose a new method, {\it binary fused compressive sensing} (BFCS), to recover sparse piece-wise smooth signals from 1-bit compressive measurements. The proposed algorithm is a modification of the previous {\it binary iterative hard…

计算机视觉与模式识别 · 计算机科学 2014-02-21 Xiangrong Zeng , Mário A. T. Figueiredo

Thin, penetrable electromagnetic inclusions buried within a half space are retrieved from Multi-Static Response (MSR) matrix data collected above this half space at several frequencies. A non-iterative algorithm is proposed to that aim. It…

数学物理 · 物理学 2012-11-06 Won-Kwang Park , Dominique Lesselier

In this paper, a linear model based on multiple measurement vectors model is proposed to formulate the inverse scattering problem of highly conductive objects at one single frequency. Considering the induced currents which are mostly…

信号处理 · 电气工程与系统科学 2019-06-27 Shilong Sun , Bert Jan Kooij , Alexander G. Yarovoy

Radio maps (RMs) are essential for environment-aware communication and sensing, providing location-specific wireless channel information. Existing RM construction methods often rely on precise environmental data and base station (BS)…

人工智能 · 计算机科学 2025-05-22 Xiucheng Wang , Zhongsheng Fang , Nan Cheng , Ruijin Sun , Zan Li , Xuemin , Shen

Multiple-input multiple-output (MIMO) radar has several advantages with respect to the traditional radar array systems in terms of performance and flexibility. However, in order to achieve high angular resolution, a MIMO radar requires a…

信号处理 · 电气工程与系统科学 2023-03-01 Himali Singh , Arpan Chattopadhyay

We demonstrate a method that reduces the noise caused by multi-scattering (MS) photons in an \invivo optical coherence tomography image. This method combines a specially designed image acquisition (i.e., optical coherence tomography scan)…

光学 · 物理学 2024-12-13 Yiqiang Zhu , Lida Zhu , Yiheng Lim , Shuichi Makita , Yu Guo , Yoshiaki Yasuno

Although block compressive sensing (BCS) makes it tractable to sense large-sized images and video, its recovery performance has yet to be significantly improved because its recovered images or video usually suffer from blurred edges, loss…

计算机视觉与模式识别 · 计算机科学 2017-03-16 Trinh Van Chien , Khanh Quoc Dinh , Byeungwoo Jeon , Martin Burger

For wideband spectrum sensing, compressive sensing has been proposed as a solution to speed up the high dimensional signals sensing and reduce the computational complexity. Compressive sensing consists of acquiring the essential information…

信号处理 · 电气工程与系统科学 2018-02-13 Fatima Salahdine , Naima Kaabouch , Hassan El Ghazi

The application of compressive sensing (CS) to structural health monitoring is an emerging research topic. The basic idea in CS is to use a specially-designed wireless sensor to sample signals that are sparse in some basis (e.g. wavelet…

应用统计 · 统计学 2015-03-31 Yong Huang , James L. Beck , Stephen Wu , Hui Li

This paper is concerned with inverse acoustic scattering problem of inferring the position and shape of a sound-soft obstacle from phaseless far-field data. We propose the Bayesian approach to recover sound-soft disks, line cracks and…

数值分析 · 数学 2021-07-28 Zhipeng Yang , Xinping Gui , Ju Ming , Guanghui Hu

Compressed sensing is a powerful tool in applications such as magnetic resonance imaging (MRI). It enables accurate recovery of images from highly undersampled measurements by exploiting the sparsity of the images or image patches in a…

机器学习 · 统计学 2016-10-04 Saiprasad Ravishankar , Yoram Bresler

There are a large number of methods for solving under-determined linear inverse problem. Many of them have very high time complexity for large datasets. We propose a new method called Two-Stage Sparse Representation (TSSR) to tackle this…

计算机视觉与模式识别 · 计算机科学 2015-12-09 Chengyu Peng , Hong Cheng , Manchor Ko

Compressed sensing is an imaging paradigm that allows one to invert an underdetermined linear system by imposing the a priori knowledge that the sought after solution is sparse (i.e., mostly zeros). Previous works have shown that if one…

图像与视频处理 · 电气工程与系统科学 2023-12-05 Nicholas Dwork , Erin K. Englund

Sonar imaging has seen vast improvements over the last few decades due in part to advances in synthetic aperture Sonar (SAS). Sophisticated classification techniques can now be used in Sonar automatic target recognition (ATR) to locate…

计算机视觉与模式识别 · 计算机科学 2017-11-22 John McKay , Vishal Monga , Raghu G. Raj

A method to improve l1 performance of the CS (Compressive Sampling) for A-scan SFCW-GPR (Stepped Frequency Continuous Wave-Ground Penetrating Radar) signals with known spectral energy density is proposed. Instead of random sampling, the…

信息论 · 计算机科学 2013-11-05 Andriyan Bayu Suksmono

Quadrature compressive sampling (QuadCS) is a sub-Nyquist sampling scheme for acquiring in-phase and quadrature (I/Q) components in radar. In this scheme, the received intermediate frequency (IF) signals are expressed as a linear…

信息论 · 计算机科学 2015-03-03 Feng Xi , Shengyao Chen , Yimin D. Zhang , Zhong Liu