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In this work, we show that reconstructing a sparse signal from quantized compressive measurement can be achieved in an unified formalism whatever the (scalar) quantization resolution, i.e., from 1-bit to high resolution assumption. This is…

信息论 · 计算机科学 2013-05-09 Laurent Jacques , Kévin Degraux , Christophe De Vleeschouwer

We consider a distributed detection problem within a wireless sensor network (WSN), where a substantial number of sensors cooperate to detect the existence of sparse stochastic signals. To achieve a trade-off between detection performance…

信号处理 · 电气工程与系统科学 2024-11-07 Linlin Mao , Shefeng Yan , Zeping Sui , Hongbin Li

There have been a number of studies on sparse signal recovery from one-bit quantized measurements. Nevertheless, little attention has been paid to the choice of the quantization thresholds and its impact on the signal recovery performance.…

信息论 · 计算机科学 2013-05-21 Jun Fang , Yanning Shen , Hongbin Li

This work is concerned with the problem of recovering high-dimensional signals $\mathbf{x} \in \mathbb{R}^n$ which belong to a convex set of low-complexity from a small number of quantized measurements. We propose to estimate the signals…

信息论 · 计算机科学 2021-03-29 Hans Christian Jung , Johannes Maly , Lars Palzer , Alexander Stollenwerk

Quantization of signals is an integral part of modern signal processing applications, such as sensing, communication, and inference. While signal quantization provides many physical advantages, it usually degrades the subsequent estimation…

信号处理 · 电气工程与系统科学 2021-12-01 Itai E. Berman , Tirza Routtenberg

Displaced automotive sensor imaging exploits joint processing of the data acquired from multiple radar units, each of which may have limited individual resources, to enhance the localization accuracy. Prior works either consider perfect…

信号处理 · 电气工程与系统科学 2020-10-09 Guohua Wang , Kumar Vijay Mishra

In this paper we study a realistic setup for phase retrieval, where the signal of interest is modulated or masked and then for each modulation or mask a diffraction pattern is collected, producing a coded diffraction pattern (CDP) [CLM13].…

信息论 · 计算机科学 2014-03-25 Youssef Mroueh

Dual-functional radar-communication (DFRC) signal design has received much attention lately. We consider the scenario of one-bit massive multi-input multi-output (MIMO) wherein one-bit DACs are employed for the sake of saving hardware…

信号处理 · 电气工程与系统科学 2025-01-28 Wai-Yiu Keung , Hei Victor Cheng , Wing-Kin Ma

In this paper, an explicit expression for the maximum detection range of an entangled quantum two-mode squeezed (QTMS) radar, in which a two-mode squeezed vacuum state of microwave electromagnetic fields is used, have been derived by…

量子物理 · 物理学 2024-12-11 H. Allahverdi , Ali Motazedifard

A stylized compressed sensing radar is proposed in which the time-frequency plane is discretized into an N by N grid. Assuming the number of targets K is small (i.e., K much less than N^2), then we can transmit a sufficiently "incoherent"…

数值分析 · 数学 2015-05-13 Matthew A. Herman , Thomas Strohmer

We proposes an ultra low power wideband spectrum sensing architecture by utilizing a one-bit quantization at the cognitive radio (CR) receiver. The impact of this aggressive quantization is quantified and it is shown that the proposed…

其他计算机科学 · 计算机科学 2015-06-08 Abdelmohsen Ali , Walaa Hamouda

One of the main drawbacks of the well-known Direct Position Determination (DPD) method is the requirement that raw signal data be transferred to a common processor. It would therefore be of high practical value if DPD$-$or a modified…

信号处理 · 电气工程与系统科学 2021-05-26 Amir Weiss , Gregory W. Wornell

Quantized compressive sensing (QCS) deals with the problem of coding compressive measurements of low-complexity signals with quantized, finite precision representations, i.e., a mandatory process involved in any practical sensing model.…

信息论 · 计算机科学 2019-02-13 Chunlei Xu , Laurent Jacques

Quantized compressive sensing (QCS) deals with the problem of representing compressive signal measurements with finite precision representation, i.e., a mandatory process in any practical sensor design. To characterize the signal…

信息论 · 计算机科学 2018-05-14 Chunlei Xu , Vincent Schellekens , Laurent Jacques

The problem of compressing a real-valued sparse source using compressive sensing techniques is studied. The rate distortion optimality of a coding scheme in which compressively sensed signals are quantized and then reconstructed is…

信息论 · 计算机科学 2010-11-09 Rajiv Soundararajan , Sriram Vishwanath

This paper addresses a critical preliminary step in radar signal processing: detecting the presence of a radar signal and robustly estimating its bandwidth. Existing methods which are largely statistical feature-based approaches face…

信号处理 · 电气工程与系统科学 2024-03-01 Akila Pemasiri , Zi Huang , Fraser Williams , Ethan Goan , Simon Denman , Terrence Martin , Clinton Fookes

In this study, a novel transmission scheme is proposed to serve radar-sensing and communication objectives at the same time and allocated bandwidth. The proposed transmitted frame non-orthogonally superimposes two different waveforms, which…

信号处理 · 电气工程与系统科学 2020-07-14 Mehmet Mert Sahin , Huseyin Arslan

Radar sensors are crucial for environment perception of driver assistance systems as well as autonomous vehicles. Key performance factors are weather resistance and the possibility to directly measure velocity. With a rising number of radar…

信号处理 · 电气工程与系统科学 2020-12-02 Johanna Rock , Wolfgang Roth , Paul Meissner , Franz Pernkopf

In this paper, we consider a distributed multiple-input multiple-output (MIMO) radar which radiates waveforms with non-ideal cross- and auto-correlation functions and derive a novel subspace-based procedure to detect and localize multiple…

信号处理 · 电气工程与系统科学 2022-12-09 Yangming Lai , Luca Venturino , Emanuele Grossi , Wei Yi

Low-bit quantization has become widespread for compressing image super-resolution (SR) models for edge deployment, which allows advanced SR models to enjoy compact low-bit parameters and efficient integer/bitwise constructions for storage…

图像与视频处理 · 电气工程与系统科学 2024-06-12 Kai Liu , Haotong Qin , Yong Guo , Xin Yuan , Linghe Kong , Guihai Chen , Yulun Zhang