Results 31 to 40 of about 163,645 (292)

Performance Improvement for SAR Tomography Based on Local Plane Model

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Multilook approaches have been applied in synthetic aperture radar (SAR) tomography (TomoSAR), for improving the density and regularity of persistent scatterers reconstructed from multipass SAR images in both rural and urban regions. Multilook operations
Wenkang Liu   +4 more
doaj   +1 more source

Generalized Correlation Coefficient Based on Log Likelihood Ratio Test Statistic

open access: yesMATEC Web of Conferences, 2016
In this paper, I point out that both Joe’s and Ding’s strength statistics can only be used for testing the pair-wise independence, and I propose a novel G-square based strength statistic, called Liu’s generalized correlation coefficient, it can be used ...
Liu Hsiang-Chuan
doaj   +1 more source

Detection of Interference Constraint Violation Based on Heterogeneous Data Fusion in Satellite-Earth Integrated Networks

open access: yesIEEE Access, 2020
In the downlink scenario of satellite-earth integrated networks, the secondary systems ought to share spectrum resources with no extra interference on the primary system under the premise of interference constraints. However, due to various factors, e.g.,
Ning Yang   +4 more
doaj   +1 more source

Extended GLRT Detection of Moving Targets for Multichannel SAR Based on Generalized Steering Vector

open access: yesSensors, 2021
A generalized likelihood ratio test (GLRT) with the constant false alarm rate (CFAR) property was recently developed for adaptive detection of moving targets in focusing synthetic aperture radar (SAR) images.
Chong Song   +3 more
doaj   +1 more source

Estimation of Stress-Strength Reliability for Multicomponent System with Rayleigh Data

open access: yesEnergies, 2021
Inference is investigated for a multicomponent stress-strength reliability (MSR) under Type-II censoring when the latent failure times follow two-parameter Rayleigh distribution. With a context that the lifetimes of the strength and stress variables have
Liang Wang   +3 more
doaj   +1 more source

Detection of Transmitted Power Violation Based on Geolocation Spectrum Database in Satellite-Terrestrial Integrated Networks

open access: yesSensors, 2020
This paper investigates the detection of the transmitted power violation (TPV) in the satellite-terrestrial integrated network, where the terrestrial base station may break the spectrum policies so that severe damages are made to the satellite systems ...
Ning Yang   +4 more
doaj   +1 more source

Generalized fiducial methods for testing quantitative trait locus effects in genetic backcross studies

open access: yesStatistical Theory and Related Fields, 2022
In this paper, we propose generalized fiducial methods and construct four generalized p-values to test the existence of quantitative trait locus effects under phenotype distributions from a location-scale family.
Pengcheng Ren   +3 more
doaj   +1 more source

Detection of Spectrum Misuse Behavior in Satellite-Terrestrial Spectrum Sensing Based on Multi-Hypothesis Tests

open access: yesIEEE Access, 2020
As the increasing of both users' demand and the number of communication satellites, spectrum resource is becoming increasingly scarce. Cognitive radio (CR) can effectively alleviate the scarcity of spectrum resource.
Yuan Liu   +5 more
doaj   +1 more source

Sequential Generalized Likelihood Ratio Tests for Online Item Monitoring

open access: yesPsychometrika, 2021
The study presents statistical procedures that monitor functioning of items over time. We propose generalized likelihood ratio tests that surveil multiple item parameters and implement with various sampling techniques to perform continuous or intermittent monitoring.
openaire   +3 more sources

Statistical test for GNSS spoofing attack detection by using multiple receivers on a rigid body

open access: yesEURASIP Journal on Advances in Signal Processing, 2020
Global navigation satellite systems (GNSS) are being the target of various jamming, spoofing, and meaconing attacks. This paper proposes a new statistical test for the presence of multiple spoofers based on range measurements observed by a plurality of ...
Ashkan Kalantari, Erik G. Larsson
doaj   +1 more source

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