Results 51 to 60 of about 6,567 (220)

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

Three dimensional scattering center imaging techniques [PDF]

open access: yes
Two methods to image scattering centers in 3-D are presented. The first method uses 2-D images generated from Inverse Synthetic Aperture Radar (ISAR) measurements taken by two vertically offset antennas.
Burnside, W. D., Younger, P. R.
core   +1 more source

Inverse Synthetic Aperture Radar Imaging Theory and Application [PDF]

open access: yes, 2011
Inverse Synthetic Aperture Radar (ISAR) is an electromagnetic sensing system that is capable of producing high resolution microwave images of moving targets.
Lopez, Jaime Xavier
core   +1 more source

Region-enhanced passive radar imaging [PDF]

open access: yes, 2005
The authors adapt and apply a recently-developed region-enhanced synthetic aperture radar (SAR) image reconstruction technique to the problem of passive radar imaging.
Cetin, Mujdat   +2 more
core   +1 more source

GLRT‐based detection of targets composed of distributed scattering centres

open access: yesIET Radar, Sonar &Navigation, Volume 18, Issue 10, Page 1767-1778, October 2024.
A new method is presented to distinguish between the distributed and centralised scattering centres which is helpful in automatic target recognition. Experimental results demonstrates the effectiveness of the proposed algorithm which is superior to existing methods.
Amir Mohammad Hatami   +2 more
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  

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

An Adversarial Super-Resolution Remedy for Radar Design Trade-offs

open access: yes, 2019
Radar is of vital importance in many fields, such as autonomous driving, safety and surveillance applications. However, it suffers from stringent constraints on its design parametrization leading to multiple trade-offs. For example, the bandwidth in FMCW
armanious   +8 more
core   +1 more source

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

A novel motion compensation algorithm for spaceborne inverse synthetic aperture radar imaging of air target under low signal‐to‐noise ratio condition

open access: yesIET Radar, Sonar &Navigation, Volume 18, Issue 9, Page 1444-1459, September 2024.
A novel translational motion compensation algorithm based on motion parameter estimation is proposed for spaceborne Inverse Synthetic Aperture Radar imaging of air target under low signal‐to‐noise ratio condition. The algorithm compensates for both distance migration and Doppler migration caused by the first‐order and second‐order motion components of ...
Yichen Zhou, Yong Wang
wiley   +1 more source

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