Results 21 to 30 of about 5,548 (180)

Translational Motion Compensation for ISAR Imaging Based on Range Joint Fast Orthogonal Matching Pursuit Algorithm

open access: yesIEEE Access, 2022
Accurate translational motion compensation (TMC) is the key procedure of inverse synthetic aperture radar (ISAR) imaging. Under the condition of sparse aperture, the correlation of adjacent pulses is severely destroyed, which brings a few challenges to ...
Xu Wei   +4 more
doaj   +1 more source

Autofocusing of Maneuvering Targets in Terahertz Inverse Synthetic Aperture Radar Imaging Based on Damped Newton Method

open access: yesSensors, 2022
Maneuvering target imaging based on inverse synthetic aperture radar (ISAR) imaging has recently drawn significant attention. Among the many autofocusing technologies which are crucial in ISAR imaging, minimum-entropy-based autofocusing (MEA) is highly ...
Hetong Wang   +3 more
doaj   +1 more source

Unblurring ISAR Imaging for Maneuvering Target Based on UFGAN

open access: yesRemote Sensing, 2022
Inverse synthetic aperture radar (ISAR) imaging for maneuvering targets suffers from a Doppler frequency time-varying problem, leading to the ISAR images blurred in the azimuth direction.
Wenzhe Li   +3 more
doaj   +1 more source

Multiview ISAR Imaging for Complex Targets Based on Improved SBR Scattering Model

open access: yesInternational Journal of Antennas and Propagation, 2021
A novel multiview inverse synthetic aperture radar (ISAR) imaging method is proposed to simulate high-resolution and identifiable ISAR image of complex targets by handling large-angle and wide-bandwidth scattering data.
Tiantian Feng, Lixin Guo
doaj   +1 more source

Application of S-Transform in ISAR Imaging [PDF]

open access: yesElectronics, 2019
In inverse synthetic aperture radar (ISAR) imaging, time-frequency analysis is the basic method for processing echo signals, which are reflected by the results of time-frequency analysis as each component changes over time. In the time-frequency map, a target’s rigid body components will appear as a series of single-frequency signals in the low ...
Bo Zang   +3 more
openaire   +2 more sources

Axial Attitude Estimation of Spacecraft in Orbit Based on ISAR Image Sequence

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Attitude estimation is a significant task for monitoring noncooperative spacecraft in orbit. Inverse synthetic aperture radar (ISAR) is an effective method to obtain the structure, size, and attitude of spacecraft.
Peng Kou   +5 more
doaj   +1 more source

Velocity-ISAR: On the application of ISAR techniques to multichannel SAR imaging [PDF]

open access: yes2015 IEEE Radar Conference (RadarCon), 2015
The U.S. Naval Research Laboratory (NRL) Multichannel Synthetic Aperture Radar (MSAR) consists of multiple receive channels arranged along the flight direction and is unique in its ability to measure and correct for radial motion at each pixel in the scene. A well-known algorithm for performing MSAR imaging, and which have we applied for the first time
Raj, Raghu G.   +4 more
openaire   +2 more sources

Two-Dimensional ISAR Fusion Imaging of Block Structure Targets

open access: yesInternational Journal of Antennas and Propagation, 2021
The range resolution and azimuth resolution are restricted by the limited transmitting bandwidth and observation angle in a monostatic radar system. To improve the two-dimensional resolution of inverse synthetic aperture radar (ISAR) imaging, a fast ...
Xiaoxiu Zhu   +5 more
doaj   +1 more source

Distributed MIMO-ISAR Sub-image Fusion Method

open access: yesLeida xuebao, 2017
The fast fluctuation associated with maneuvering a target’s radar cross-section often affects the imaging performance stability of traditional monostatic Inverse Synthetic Aperture Radar (ISAR).
Gu Wenkun, Wang Dangwei, Ma Xiaoyan
doaj   +1 more source

CIST: An Improved ISAR Imaging Method Using Convolution Neural Network

open access: yesRemote Sensing, 2020
Compressive sensing (CS) has been widely utilized in inverse synthetic aperture radar (ISAR) imaging, since ISAR measured data are generally non-completed in cross-range direction, and CS-based imaging methods can obtain high-quality imaging results ...
Shunjun Wei   +5 more
doaj   +1 more source

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