Results 31 to 40 of about 768,249 (233)
Remote Sensing, 2019 We investigated the use of C-band RADARSAT Constellation Mission (RCM) synthetic aperture radar (SAR) for retrieval of ocean surface wind speeds by using four new channels (right circular transmit, vertical receive (RV); right circular transmit ...
He Fang +7 more
doaj +1 more source
Ionospheric Sounding Based on Spaceborne PolSAR in P-Band
Atmosphere, 2022 The signal of spaceborne low-frequency full-polarization synthetic aperture radar (full-pol SAR) contains abundant ionospheric information. Phased Array L-band Synthetic Aperture Radar (PALSAR) working in the L-band has been verified as an emerging ...
Wulong Guo +8 more
doaj +1 more source
Research Progress on Three-dimensional SAR Imaging Techniques
Leida xuebao, 2018 Conventional Synthetic Aperture Radar (SAR) moves along a straight line and forms a linear synthetic apertures. It can only obtain the two-dimensional (2-D) image of illuminated scene that is the projection of the three-dimensional (3-D) real scene onto ...
Hong Wen +4 more
doaj +1 more source
MIMO-SAR and the Orthogonality Confusion [PDF]
, 2012 This paper reviews radar architectures that employ multiple transmit and multiple receive channels to improve the performance of synthetic aperture radar (SAR) systems.
A. Patyuchenko +21 more
core +1 more source
Design and testing method of imaging system based on FMCW circular scanning SAR
Dianzi Jishu Yingyong, 2018 In order to achieve high resolution imaging with different distances, a target range direction detection system is designed and tested under the frequency modulated continuous wave(FMCW) circular scanning synthetic aperture radar(SAR) system.
Liu Lianghuan +2 more
doaj +1 more source
An image formation algorithm for missile-borne circular-scanning SAR [PDF]
EURASIP Journal on Advances in Signal Processing, 2013 Circular-scanning SAR is an imaging mode with its antenna beam rotating continuously with respect to the vertical axis. An image formation algorithm for the missile-borne circular-scanning SAR is proposed in this article. Based on the principle of the polar format algorithm, the focus algorithm is generalized to form each subimage when the antenna beam
Yesheng Gao, Kaizhi Wang, Xingzhao Liu
openaire +3 more sources
A Focusing Algorithm for Circular SAR Based on Phase Error Estimation in Image Domain
Leida xuebao, 2015 Residual motion error is common in high-resolution circular Synthetic Aperture Radar (SAR) image defocusing. The Signal-to-Clutter Ratio (SCR) in echo data domain is relatively low; thus, the phase error spans several range bins.
Guo Zhen-yu, Lin Yun, Hong Wen
doaj +1 more source
F-SAR – DLR’s advanced airborne SAR system onboard DO228 [PDF]
, 2008 The Microwaves and Radar Institute of the German Aerospace Center (DLR) is known for its consistent work on the field of airborne synthetic aperture radar and its application.
Nottensteiner, Anton +5 more
core
Liver organoids: modelling complexity in homeostasis and disease
FEBS Letters, EarlyView.Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley +1 more source
SAR Ground Small Target Detection and Recognition Methods Via Micro‑small UAVs
Nanjing Hangkong Hangtian Daxue XuebaoThe radar detection and imaging team at Nanjing University of Aeronautics and Astronautics （NUAA） has developed a circular synthetic aperture radar （SAR） dataset for over ten types of typical military targets， including tanks， armored vehicles， and ...
ZHU Daiyin +10 more
doaj +1 more source