Results 91 to 100 of about 7,032 (255)

3-D High-Resolution ISAR Imaging for Noncooperative Air Targets

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This article uses the inverse synthetic aperture radar (ISAR) imaging method to present real-world tests on 3-D radar imaging of noncooperative air targets. Initially, the fundamentals of 3-D ISAR are introduced.
Marcin Kamil Baczyk   +10 more
doaj   +1 more source

Research of InISAR imaging based on joint translational compensation

open access: yesThe Journal of Engineering, 2019
In order to solve the problem that conventional inverse synthetic aperture radar three-dimensional (InISAR 3D) imaging methods need too much computation and so many restrictions in image registration step, this study proposes an InISAR 3D imaging ...
Kai Zhang, Yingni Hou, Lin Jin
doaj   +1 more source

Three‐dimensional interferometric inverse synthetic aperture radar imaging of ship target based on cubic phase signal model

open access: yesIET Radar, Sonar &Navigation, Volume 18, Issue 10, Page 1691-1709, October 2024.
This paper proposes a three‐dimensional interferometric inverse synthetic aperture radar imaging algorithm for the ship targets based on the cubic phase signal (CPS) model. This method approximates the azimuth echo signal as a CPS and utilises the particle swarm optimisation algorithm to estimate the higher order phase coefficients.
Junting Yang, Yong Wang
wiley   +1 more source

Chip-based photonic radar for high-resolution imaging

open access: yes, 2019
Radar is the only sensor that can realize target imaging at all time and all weather, which would be a key technical enabler for future intelligent society.
Cong, Rong   +8 more
core  

Using Polynomial Wigner-Ville Distribution for Velocity Estimation in Remote Toll Applications [PDF]

open access: yes, 2014
International audienceThis letter presents the use of polynomial Wigner- Ville distribution (PWVD) for accurate velocity estimation as used in remote road traffic management applications.
Meric, Stéphane, Pancot, Rébecca
core   +2 more sources

Photonics-based broadband radar for high-resolution and real-time inverse synthetic aperture imaging.

open access: yesOptics Express, 2017
A photonics-based radar with generation and de-chirp processing of broadband linear frequency modulated continuous-wave (LFMCW) signal in optical domain is proposed for high-resolution and real-time inverse synthetic aperture radar (ISAR) imaging. In the
Fangzheng Zhang   +6 more
semanticscholar   +1 more source

SDRnet: A Deep Fusion Network for ISAR Ship Target Recognition Based on Feature Separation and Weighted Decision

open access: yesRemote Sensing
Existing methods for inverse synthetic aperture radar (ISAR) target recognition typically rely on a single high-resolution radar signal type, such as ISAR images or high-resolution range profiles (HRRPs).
Jie Deng, Fulin Su
doaj   +1 more source

140GHz帯ミリ波レーダのためのRPM法による高速・高精度立体画像化 [PDF]

open access: yes, 2016
超広帯域レーダは高い距離分解能を有し,光学センサの運用が困難な状況で計測が可能であり,有用とされている.近年,140GHz帯の超広帯域レーダが,装置の小型化や高分解能化の観点から注目されており.建設現場における重機の目標物認識センサや救助ロボット,高齢者見守りシステム等に有用とされている.目標形状の画像化技術として,既に合成開口処理(SAR: Synthetic Aperture Radar)や,SEABED(Shape Estimation Algorithm based on Boundary ...
Yuta Sasaki, 佐々木 優太
core   +1 more source

Leveraging Mobile Processors for ISAR Image Generation and Classification in Radar Platforms

open access: yesIEEE Access
With the growing threats posed by small airborne platforms such as drones in modern warfare, there is an increasing demand for small target identification technology.
Seongwook Kim   +6 more
doaj   +1 more source

SA-ISAR imaging algorithm based on the gradient signal recovery method

open access: yesThe Journal of Engineering, 2019
As the radar system tends to be complex, obtaining well-focused images with discontinued apertures becomes a challenge. Here, a new sparse aperture inverse synthetic aperture radar (SA-ISAR) imaging approach through the signal recovery method is proposed.
Bingren Ji   +3 more
doaj   +1 more source

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