Results 41 to 50 of about 9,662,076 (112)
MIMO SAR Using Orthogonal Coding: Design, Performance Analysis, and Verifications
International Journal of Antennas and Propagation, Volume 2015, Issue 1, 2015., 2015 Multiple‐input multiple‐output (MIMO) synthetic aperture radar (SAR) is a promising technology in radar imaging which provides a better balance of azimuth resolution and swath width compared with traditional single‐input single‐output (SISO) SAR. It has the potential to help scientists and engineers to design ambitious SAR system with higher resolution
Yueguan Lin +5 more
wiley +1 more source
Optimum GMTI processing for space-based SAR/GMTI systems - Theoretical derivation
, 2022 4 S.This paper derives two processing methods for optimum SAR/GMTI (Ground Moving Target Indication). The first method, EDPCA (Extended Displaced Phase Center Antenna) extends the well-known DPCA (Displaced Phase Center Antenna) and ATI (Along-Track ...
Cerutti-Maori, D., Sikaneta, I.
core
An experimental test of endfire synthetic aperture sonar for sediment characterisation
IET Radar, Sonar &Navigation, Volume 18, Issue 11, Page 2057-2065, November 2024.At low‐frequencies, direct measurements of sediment volume scattering have rarely been made, due to the bias in by interface roughness scattering caused by the large beamwidths of low‐frequency sonars. Endfire Synthetic Aperture Sonar (EF‐SAS) can achieve narrower beamwidths by forming a vertically oriented synthetic array as a transimtter and/or ...
Shannon‐Morgan Steele +1 more
wiley +1 more source
Study of Improvement of GMTI Performance Using DPCA and ATI
, 2018 지상 이동표적 탐지(gorund moving target indicator: GMTI)는 지상의 교통 통제등을 목적으로 하며, 주로 합성 개구면레이다(synthetic aperture radar: SAR) 시스템을 이용하여 짧은 시간에 넓은 지형에 대하여 효율적인 이동표적 탐지를 수행한다.
오태봉 +4 more
core +1 more source
Deep learning‐based time delay estimation for motion compensation in synthetic aperture sonars
IET Radar, Sonar &Navigation, Volume 18, Issue 5, Page 740-753, May 2024.In this study, a subband processing and lightweight neural network‐based time delay estimation method is introduced to SAS motion estimation and compensation. The results of time delay estimation and motion compensation demonstrate that the proposed method has better performance than the reference method.
Shiping Chen +5 more
wiley +1 more source
, 2016 The displaced phase center antenna (DPCA) technique is a classical method for achieving high-resolution wide-swath synthetic aperture radar (SAR) imaging.
Quan, X.;Zhang, B.;Zhu, X. X.;Wu, Y.
core +2 more sources
Robust Channel Registration and Clutter Suppression for Airborne Terahertz Multichannel SAR-GMTI
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingAirborne terahertz (THz) synthetic aperture radar (SAR) demonstrates significant potential for real-time ground moving target indication due to its high frame rate and superior resolution.
Zhenjiang Li +4 more
doaj +1 more source
, 2010 This paper discusses a possibility to integrate space-time processing into the time-domain backprojection process. This combination allows detection as well as imaging moving objects.
Viet T. Vu +5 more
core +1 more source
• MUEHE AND LABITT Displaced-Phase-Center Antenna Technique Displaced-Phase-Center Antenna Technique
, 2008 the displaced-phase-center antenna (DPCA) technique, which was used to improve the detection performance of airborne or space-borne MTI radars that are subject to clutter. In the 1950s the DPCA technique was applied to airborne early warning (AEW) radars
Melvin Labitt, Charles Edward Muehe
core
Reconfigurable displaced phase center antennas with focal plane phased arrays [PDF]
, 2018 In this thesis, a novel displaced phase center antenna technique is introduced and demonstrated. A proof of concept study is performed using a three-element linear array, placed in the focal plane of a parabolic reflector antenna.
Henley, Michael
core +1 more source