Results 51 to 60 of about 797,596 (216)

Time-Domain Scattering Characteristics and Jamming Effectiveness in Corner Reflectors

open access: yesIEEE Access, 2021
The outboard corner reflectors are widely used as a countermeasure to radar tracking and detection. Therefore, it is essential to determine the composite time-domain scattering characteristics of the corner reflector and ship against the sea background ...
Ying Luo   +3 more
doaj   +1 more source

A NUFFT Based Step-frequency Chirp Signal High Resolution Imaging Algorithm and Target Recognition Algorithm

open access: yesLeida xuebao, 2015
Radar Automatic Target Recognition (RATR) is the key technique to be breaked through in the fuure development of intelligent weapon system. Compared to the 2-D SAR image target recognition, High Resolution Range Profile (HRRP) target recognition has the ...
Xiang Yin, Zhang Kai, Hu Cheng
doaj   +1 more source

Radar automatic target recognition using complex high-resolution range profiles

open access: yesIET Radar, Sonar & Navigation, 2007
Radar high-resolution range profile (HRRP) has received intensive attention from the radar automatic target recognition (RATR) community. Usually, since the initial phase of a complex HRRP is strongly sensitive to target position variation, only the amplitude information in complex HRRPs is used for RATR, whereas the phase information is discarded ...
L. Du, H. Liu, Z. Bao, J. Zhang
openaire   +2 more sources

Study on radar target recognition based on sparse representation with a federated dictionary

open access: yesDianzi Jishu Yingyong, 2019
When high resolution range profiles(HRRP) are used to recognize radar target, few traditional recognition methods analyse the sparseness of HRRP samples.
Duan Peipei, Li Hui, Luo Mingshi
doaj   +1 more source

Ship Profile Imaging Using Multipath Backscattering

open access: yesRemote Sensing, 2019
This paper addresses the estimation of the height of a point scatterer over a sea surface via multipath exploitation for a High Range Resolution radar that is using pulse range compression, such as Synthetic Aperture Radars.
Jean-Marc Le Caillec   +2 more
doaj   +1 more source

Scattering Mechanism Identification Based on Polarimetric HRRP of Manmade Target

open access: yesLeida xuebao, 2016
In this paper, we analyze the space polarization and frequency dispersion characteristics of the polarimetric High Resolution Range Profile (HRRP) of manmade targets.
Wu Jiani   +4 more
doaj   +1 more source

Space Precession Target Classification Based on Radar High-Resolution Range Profiles [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2019
Precession is a common micromotion form of space targets, introducing additional micro-Doppler (m-D) modulation into the radar echo. Effective classification of space targets is of great significance for further micromotion parameter extraction and identification.
Yizhe Wang   +3 more
openaire   +2 more sources

Adaptive soft threshold transformer for radar high‐resolution range profile target recognition

open access: yesIET Radar, Sonar & Navigation
Radar High‐Resolution Range Profile (HRRP) has great potential for target recognition because it can provide target structural information. Existing work commonly applies deep learning to extract deep features from HRRPs and achieve impressive ...
Siyu Chen, Xiaohong Huang, Weibo Xu
doaj   +1 more source

Ship Radial Size Estimation in High-Resolution Maritime Surveillance Radars via Sparse Recovery Using Linear Programming

open access: yesIEEE Access, 2019
For high-resolution maritime surveillance radars operating at scan mode and transmitting long duration pulses, radial size estimation of ships is severely interfered by range sidelobe effect of pulse compression. Due to range sidelobe effect, strong ship
Peng-Lang Shui, Kun Zhang
doaj   +1 more source

Design and Processing Method for Doppler-Tolerant Stepped-Frequency Waveform Using Staggered PRF

open access: yesSensors, 2021
Stepped-frequency waveform may be used to synthesize a wideband signal with several narrow-band pulses and achieve a high-resolution range profile without increasing the instantaneous bandwidth.
Yan Zhang   +4 more
doaj   +1 more source

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