Results 1 to 10 of about 1,064,953 (269)

Incoherent Integration Detection Method of Airborne Phased Array Radar in a Multipath Environment

open access: yesInternational Journal of Antennas and Propagation, 2021
Airborne phased array radar (PAR) suffers from multipath problems when flying over a calm sea surface. The existence of a multipath phenomenon will cause the electromagnetic echo of the same target to be reflected back to the airborne PAR from two paths,
Yili Hu, Yongbo Zhao, Sheng Chen
doaj   +1 more source

Olfactory signal processing [PDF]

open access: yesDigital Signal Processing, 2016
Olfaction, the sense of smell, has received scant attention from a signal processing perspective in comparison to audition and vision. In this paper, we develop a signal processing paradigm for olfactory signals based on new scientific discoveries including the psychophysics concept of olfactory white.
Kush R. Varshney, Lav R. Varshney
openaire   +2 more sources

Signals and Signal Processing for the Electrophysiologist [PDF]

open access: yesCirculation: Arrhythmia and Electrophysiology, 2011
In part II of this series, using the background covered in part I on electrogram acquisition and signal processing, we discuss potential errors in mapping because of artifact or inappropriate filtering of signals that may lead to unsuitable selection of ablation sites. ### Saturation Artifact If a 3-mV peak signal is being amplified at a gain of 5000,
K L, Venkatachalam   +2 more
openaire   +2 more sources

A study on parameter estimation and suppression for smeared spectrum jamming based on short-time Fourier transform

open access: yesEURASIP Journal on Wireless Communications and Networking, 2020
We address the suppressing problem of smeared spectrum (SMSP) jamming from the mixed signal received by the radar. To this end, we resort to the time-frequency analysis algorithm and give the concrete expression formula of the short-time Fourier ...
Chuanzhang Wu   +3 more
doaj   +1 more source

The Laplacian spread of a tree [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2008
Graphs and ...
Yi-Zheng Fan   +3 more
doaj   +1 more source

Three-Dimensional Coordinate Extraction Based on Radargrammetry for Single-Channel Curvilinear SAR System

open access: yesRemote Sensing, 2022
With the rapid development of high-resolution synthetic aperture radar (SAR) systems, the technique that utilizes multiple two-dimensional (2-D) SAR images with different view angles to extract three-dimensional (3-D) coordinates of targets has gained ...
Chenghao Jiang   +6 more
doaj   +1 more source

Graphon Signal Processing [PDF]

open access: yesIEEE Transactions on Signal Processing, 2021
Graphons are infinite-dimensional objects that represent the limit of convergent sequences of graphs as their number of nodes goes to infinity. This paper derives a theory of graphon signal processing centered on the notions of graphon Fourier transform and linear shift invariant graphon filters, the graphon counterparts of the graph Fourier transform ...
Luana Ruiz   +2 more
openaire   +2 more sources

Chaff identification method based on Range‐Doppler imaging feature

open access: yesIET Radar, Sonar & Navigation, 2022
Chaff is widely used in electronic countermeasures as an effective passive jamming method. This study proposes a chaff identification method that integrates the distribution of distance, Doppler frequency, and power in Range‐Doppler imaging.
Husheng Wang   +8 more
doaj   +1 more source

Two-Stream Deep Fusion Network Based on VAE and CNN for Synthetic Aperture Radar Target Recognition

open access: yesRemote Sensing, 2021
Usually radar target recognition methods only use a single type of high-resolution radar signal, e.g., high-resolution range profile (HRRP) or synthetic aperture radar (SAR) images. In fact, in the SAR imaging procedure, we can simultaneously obtain both
Lan Du   +5 more
doaj   +1 more source

Convolutional neural networks for radar HRRP target recognition and rejection

open access: yesEURASIP Journal on Advances in Signal Processing, 2019
Robust and efficient feature extraction is critical for high-resolution range profile (HRRP)-based radar automatic target recognition (RATR). In order to explore the correlation between range cells and extract the structured discriminative features in ...
Jinwei Wan   +4 more
doaj   +1 more source

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