Results 51 to 60 of about 21,397 (182)
A chirplet‐based masking algorithm for smeared spectrum jamming suppression and signal separation
IET Radar, Sonar &Navigation, Volume 18, Issue 9, Page 1409-1430, September 2024.The authors propose a chirplet‐based masking algorithm that can solve the problem of SMSP jamming suppression and address a more complex problem: the separation of jamming signal and multiple LFM signals from intercepted mixed signal. First, the authors obtain matched chirp rates of the source signals through the changing tendency of the Rényi entropy.
Yifan Wang +4 more
wiley +1 more source
Geophysical Research Letters, Volume 51, Issue 16, 28 August 2024.Abstract Monitoring the generation and movement of equatorial plasma bubbles (EPBs) in a large longitude region is crucial important for better understanding their day‐to‐day variability. Using the newly developed Low lAtitude long Range Ionospheric raDar (LARID) at Dongfang (19.2°N, 108.8°E, dip lat.
Lianhuan Hu +11 more
wiley +1 more source
Adaptive Radar Detection of a Subspace Signal Embedded in Subspace Structured plus Gaussian Interference Via Invariance [PDF]
, 2015 This paper deals with adaptive radar detection of a subspace signal competing with two sources of interference. The former is Gaussian with unknown covariance matrix and accounts for the joint presence of clutter plus thermal noise.
De Maio, Antonio, Orlando, Danilo
core +2 more sources
Not So Fast: A New Catalog of Meteor Persistent Trains
Journal of Geophysical Research: Space Physics, Volume 129, Issue 7, July 2024.Abstract This paper presents the results of a nearly 2‐year long campaign to detect and analyze meteor persistent trains (PTs)—self‐emitting phenomena which can linger up to an hour after their parent meteor. The modern understanding of PTs has been primarily developed from the Leonid storms at the turn of the century; our goal was to assess the ...
L. E. Cordonnier +4 more
wiley +1 more source
IET Radar, Sonar &Navigation, Volume 18, Issue 7, Page 1055-1067, July 2024.The authors investigate the performance of an original multifunction system with two in‐band full‐duplex capable joint radar, communications and security transceivers in the presence of an eavesdropper. By combining a bandlimited pseudonoise waveform with an orthogonal frequency‐division multiplexing waveform, the authors are able to ensure a certain ...
Jaakko Marin +2 more
wiley +1 more source
A Frequency Management Technique for an HF-OTH Skywave Radar [PDF]
Questa tesi ha lo scopo di illustrare una tecnica di selezione delle frequenze in un radar HF-OTH di tipo ...
TOMEI, SONIA
core
Free global DSM assessment on large scale areas exploiting the potentialities of the innovative google earth engine platform [PDF]
, 2017 The high-performance cloud-computing platform Google Earth Engine has been developed for global-scale analysis based on the Earth observation data. In particular, in this work, the geometric accuracy of the two most used nearly-global free DSMs (SRTM and
Amicuzi, Maria Teresa +5 more
core +3 more sources
HF radar detection of infrasonic waves generated in the ionosphere by the 28 March 2005 Sumatra earthquake [PDF]
, 2014 International audienceSurface waves generated by earthquakes create atmospheric waves detectable in the ionosphere using radio waves techniques: i.e., HF Doppler sounding, GPS and altimeter TEC measurements, as well as radar measurements.
Bourdillon, Alain +3 more
core +3 more sources
Risk analysis of autonomous vehicle test scenarios using a novel analytic hierarchy process method
IET Intelligent Transport Systems, Volume 18, Issue 5, Page 794-807, May 2024.A novel analytic hierarchy process method is proposed to calculate the criticality of test scenarios for autonomous vehicles. In the proposed method, the pairwise comparison values can be automatically generated by the performance metrics from the simulation instead of the person involved.
Shengpeng Zhang, Taeoh Tak
wiley +1 more source
Do oil and gas platforms off California reduce recruitment of bocaccio (Sebastes paucispinis) to natural habitat? An analysis based on trajectories derived from high-frequency radar [PDF]
, 2006 To investigate the possibility that oil and gas platforms may reduce recruitment of rockfishes (Sebastes spp.) to natural habitat, we simulated drift pathways termed “trajectories” in our model) from an existing oil platform to nearshore habitat using ...
Emery, Brian M. +4 more
core