Results 1 to 10 of about 1,039,011 (317)

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

Genomic Signal Processing [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2011
1Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843, USA 2Department of Computer Science and Engineering, University of Minnesota Twin Cities, Minneapolis, MN 55455, USA 3Department of Information and Computer Science, Aalto University, Espoo 00076, Finland 4Department of Electrical and Computer ...
Braga-Neto, Ulisses   +5 more
openaire   +4 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

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

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

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

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   +3 more sources

Airborne Elevation DBF-TOPS SAR/InSAR Method Based on LOS Motion Compensation and Channel Error Equalization

open access: yesRemote Sensing, 2022
Digital beamforming (DBF) TOPS SAR in elevation is a new synthetic aperture radar (SAR) system, which has the advantage of wide swath coverage and a high signal-to-noise ratio (SNR).
Zhiyong Suo   +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

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

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