Results 1 to 10 of about 7,415 (65)

Robust Automatic Modulation Classification in Low Signal to Noise Ratio

open access: yesIEEE Access, 2023
In a non-cooperative communication environment, automatic modulation classification (AMC) is an essential technology for analyzing signals and classifying different kinds of signal modulation before they are demodulated.
To Truong An, Byung Moo Lee
doaj   +1 more source

Remote Sensing Low Signal-to-Noise-Ratio Target Detection Enhancement

open access: yesSensors, 2023
In real-time remote sensing application, frames of data are continuously flowing into the processing system. The capability of detecting objects of interest and tracking them as they move is crucial to many critical surveillance and monitoring missions ...
Tian J. Ma, Robert J. Anderson
doaj   +1 more source

Parameter Estimation of LFM Signal in Low Signal-to-Noise Ratio Using Cross-Correlation Function

open access: yesAdvances in Electrical and Electronic Engineering, 2021
The pulse with intra-pulse modulation plays an important role in the design of radar systems. The first class of the signals type is the linear frequency modulation technique.
Minh Van Duong   +4 more
doaj   +1 more source

Fusion denoising algorithm for vibration signal of mine hoist with low signal-to-noise ratio

open access: yesGong-kuang zidonghua, 2023
Aiming at the nonlinear and low signal-to-noise ratio characteristics of mine hoist vibration signal in complex environments, a mine hoist vibration signal fusion denoising algorithm based on complete EEMD with adaptive noise (CEEMDAN) and adaptive ...
WANG Houchao   +3 more
doaj   +1 more source

Weak beat frequency extraction method for photon Doppler signal with low signal-to-noise ratio

open access: yesOpen Physics, 2023
In the window function spectrum of the low signal-to-noise ratio photon Doppler signal after the short-time Fourier transform, the weak beat frequency cannot be obtained by extracting the maximum amplitude spectrum frequency of each window because the ...
Sun Ya-Nan   +6 more
doaj   +1 more source

Aircraft Target Detection in Low Signal-to-Noise Ratio Visible Remote Sensing Images

open access: yesRemote Sensing, 2023
With the increasing demand for the wide-area refined detection of aircraft targets, remote sensing cameras have adopted an ultra-large area-array detector as a new imaging mode to obtain broad width remote sensing images (RSIs) with higher resolution ...
Ruize Niu   +5 more
doaj   +1 more source

Time Delay Estimation Method Used Median Filter in Low Signal to Noise Ratio Pulse Environment [PDF]

open access: yesE3S Web of Conferences, 2021
In practice, the collected signal often contains impulsive noise. The classical time delay estimation algorithm based on the second-order statistics of Gaussian distribution will degrade or even be unreliable, so that it cannot be used.
Liu Hang, Liu Wenhong
doaj   +1 more source

A nonlinear total variation based denoising method for electrostatic signal of low signal-to-noise ratio

open access: yesAdvances in Mechanical Engineering, 2022
Aero-engine electrostatic monitoring technology (EMT) is a novel and effective condition monitoring technology. With the help of EMT, effective monitoring of early failures can be achieved. Since the electrostatic monitoring of the running engine will be
Zhirong Zhong, Hongfu Zuo, Heng Jiang
doaj   +1 more source

Research on DOA estimation algorithm for coherent signal under low signal to noise ratio

open access: yesDianzi Jishu Yingyong, 2018
In order to solve the problem of low coherent signal DOA estimation accuracy and low resolution in low signal to noise ratio, this paper proposes a DOA estimation algorithm for coherent signal under low SNR.
Ren Quanhui, Chen Xiangcheng
doaj   +1 more source

Frequency Measurement Method of Signals with Low Signal-to-Noise-Ratio Using Cross-Correlation

open access: yesMachines, 2021
Precise frequency measurement plays an essential role in many industrial and robotic systems. However, different effects in the application’s environment cause signal noises, which make frequency measurement more difficult.
Yang Liu, Jigou Liu, Ralph Kennel
doaj   +1 more source

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