Results 41 to 50 of about 135,560 (273)

Improved Algorithm for Compressed Sensing Channel Estimation Based on DFT Path Searching [PDF]

open access: yesJisuanji gongcheng, 2022
Signals in Orthogonal Frequency Division Multiplexing(OFDM) systems are influenced by environmental decline in wireless channels and delay, causing Inter Symbol Interference(ISI).Accurate estimation of Channel State Information(CSI) is an effective ...
FANG Haitao, LI Mingqi, BIAN Xin
doaj   +1 more source

Experimentally exploring compressed sensing quantum tomography [PDF]

open access: yes, 2016
In the light of the progress in quantum technologies, the task of verifying the correct functioning of processes and obtaining accurate tomographic information about quantum states becomes increasingly important.
Bell, B. A.   +8 more
core   +4 more sources

Sequential Compressed Sensing [PDF]

open access: yes, 2009
Compressed sensing allows perfect recovery of sparse signals (or signals sparse in some basis) using only a small number of random measurements. Existing results in compressed sensing literature have focused on characterizing the achievable performance ...
Malioutov, Dmitry   +2 more
core   +1 more source

Compressed Sensing Image Mapping Spectrometer

open access: yesIEEE Access, 2019
This paper presents a novel snapshot imaging spectrometer based on the image mapping and compressed sensing concept named Compressed Sensing Image Mapping Spectrometer (CSIMS).
Xiaoming Ding
doaj   +1 more source

Permutation Meets Parallel Compressed Sensing: How to Relax Restricted Isometry Property for 2D Sparse Signals

open access: yes, 2013
Traditional compressed sensing considers sampling a 1D signal. For a multidimensional signal, if reshaped into a vector, the required size of the sensing matrix becomes dramatically large, which increases the storage and computational complexity ...
Fang, Hao   +3 more
core   +1 more source

Compressed sensing for electrocardiogram acquisition in wireless body sensor network: A comparative analysis

open access: yesInternational Journal of Distributed Sensor Networks, 2019
In the past decades, compressed sensing emerges as a promising technique for signal acquisition in low-cost sensor networks. For prolonging the monitoring duration of biosignals, compressed sensing is also exploited for simultaneous sampling and ...
Junxin Chen   +3 more
doaj   +1 more source

Segmented Multistage Reconstruction of Magnetic Resonance Images

open access: yesAdvances in Electrical and Computer Engineering, 2021
Compressed sensing of magnetic resonance imaging refers to the reconstruction of magnetic resonance images from partially sampled k-space data. The k-space data reduces reconstruction processing time but at the cost of increasing artifacts - especially
FARIS, M.   +3 more
doaj   +1 more source

Modulated Unit-Norm Tight Frames for Compressed Sensing [PDF]

open access: yes, 2014
In this paper, we propose a compressed sensing (CS) framework that consists of three parts: a unit-norm tight frame (UTF), a random diagonal matrix and a column-wise orthonormal matrix.
Gan, Lu   +3 more
core   +1 more source

A novel cooperative spectrum signal detection algorithm for underwater communication system

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
In order to further improve the spectrum resource detection probability and increase the spectrum utilization rate in underwater wireless communication systems, this paper designs a novel multi-layer cooperative spectrum sensing algorithm based on ...
Jiang Xiaolin   +2 more
doaj   +1 more source

Randomness and isometries in echo state networks and compressed sensing

open access: yes, 2018
Although largely different concepts, echo state networks and compressed sensing models both rely on collections of random weights; as the reservoir dynamics for echo state networks, and the sensing coefficients in compressed sensing.
Prater-Bennette, Ashley
core   +1 more source

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