Results 21 to 30 of about 18,766,476 (140)

High-Resolution and Wide-Swath SAR Imaging with Space–Time Coding Array

Remote Sensing, 2023
To achieve high-resolution and wide-swath (HRWS) synthetic aperture radar (SAR) images, this paper focuses on resolving the problem of separating range-ambiguous echoes with the space–time coding (STC) array.
Kun Yu, Shengqi Zhu, Lan Lan, Biao Yang
doaj   +2 more sources

Spaceborne HRWS-SAR-GMTI System Design Method with Optimal Configuration

Remote Sensing
The spaceborne high-resolution and wide-swath synthetic aperture radar (HRWS-SAR) system combined with the ground moving target indication (GMTI) mode provides a promising prospect in the realization of wide-area target surveying and high-resolution ...
Yan Jiang, Lingyu Wang, Qing Ling, Jingtao Ma, Penghui Huang, Xingzhao Liu, Jixia Fan   +6 more
doaj   +2 more sources

A Multiple-Input Multiple-Output Synthetic Aperture Radar Echo Separation and Range Ambiguity Suppression Processing Framework for High-Resolution Wide-Swath Imaging

Remote Sensing
Multiple-input multiple-output (MIMO) synthetic aperture radar (SAR) is a promising scheme for high-resolution wide-swath (HRWS) imaging. After echo separation processing, a MIMO-SAR system can provide many equivalent phase centers (EPCs) in azimuth ...
Haonan Zhao, Zhimin Zhang, Zhen Chen, Huaitao Fan, Zongsen Lv, Jianzhong Bi   +5 more
doaj   +2 more sources

Vegetation canopy height estimation in dynamic tropical landscapes with TanDEM‐X supported by GEDI data

Methods in Ecology and Evolution, Volume 14, Issue 7, Page 1639-1656, July 2023., 2023
Abstract Vegetation canopy height is a relevant proxy for aboveground biomass, carbon stock, and biodiversity. Wall‐to‐wall information of canopy height with high spatial resolution and accuracy is not yet available on large scales. For the globally consistent TanDEM‐X data, simplifications are necessary to estimate canopy height with semi‐empirical ...
Michael Schlund, Arne Wenzel, Nicolò Camarretta, Christian Stiegler, Stefan Erasmi   +4 more
wiley   +1 more source

Recognition and parameter estimation of spaceborne synthetic aperture radar pulse repetition interval modulation based on short time modified pulse repetition interval transform

IET Radar, Sonar &Navigation, Volume 16, Issue 10, Page 1696-1716, October 2022., 2022
Abstract The traditional pulse repetition interval (PRI) transform method and modified PRI transform method have a low ability to recognise the complex PRI modulation type adopted in spaceborne synthetic aperture radar systems. To solve this problem, a short‐time modified PRI transform (STMPT) method based on the traditional PRI transform method was ...
Guanyu Qiao, Dahai Dai, Caikun Zhang, Penghui Ji, Bo Pang   +4 more
wiley   +1 more source

AN ADAPTIVE SHIP DETECTION ALGORITHM FOR HRWS SAR IMAGES UNDER COMPLEX BACKGROUND: APPLICATION TO SENTINEL1A DATA [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Real-time ship detection using synthetic aperture radar (SAR) plays a vital role in disaster emergency and marine security. Especially the high resolution and wide swath (HRWS) SAR images, provides the advantages of high resolution and wide swath ...
G. He, Z. Xia, H. Chen, K. Li, Z. Zhao, Y. Guo, P. Feng   +6 more
doaj   +1 more source

Multi-Channel SAR System Design for HRWS and GMTI in Low PRF

IEEE Access, 2020
High-resolution and wide-swath (HRWS) is an important challenge in synthetic aperture radar (SAR). Combined SAR with array, the azimuth dual-channel SAR configuration achieves high azimuth resolution and HRWS in low Pulse repetition frequency (PRF) by ...
Xuepan Zhang, Chen Yang, Xuejing Zhang, Qingqing Lin   +3 more
doaj   +1 more source

A MirrorSAR Case Study Based on the X-Band High Resolution Wide Swath Satellite (HRWS) [PDF]

, 2021
The paper reports results of a concrete MirrorSAR mission analysis study with the planned X-band HRWS satellite as transmitter. The driving goal is a next generation global DEM with a much better height performance compared to TanDEM-X. Three small passive receive satellites are spanning differently sized interferometric baselines by flying in ...
Mittermayer, Josef, Krieger, Gerhard, Bojarski, Allan, Zonno, Mariantonietta, Villano, Michelangelo, Moreira, Alberto   +5 more
openaire   +1 more source

Staggered-SAR for High-Resolution Wide-Swath Imaging [PDF]

, 2012
Synthetic aperture radar (SAR) is a remote sensing technique, capable of providing high resolution images independent of weather conditions and sunlight illumination.
Villano, Michelangelo, M. Villano, Moreira, Alberto, A. Moreira, G. Krieger, Krieger, Gerhard   +5 more
core   +1 more source

ERROR ESTIMATION AND UNAMBIGUOUS RECONSTRUCTION FOR CHINESE FIRST DUAL-CHANNEL SPACEBORNE SAR IMAGING [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Multichannel synthetic aperture radar (SAR) is a significant breakthrough to the inherent limitation between high-resolution and wide-swath (HRWS) faced with conventional SAR.
T. Jin, T. Jin, X. Qiu, D. Hu, C. Ding
doaj   +1 more source