Results 51 to 60 of about 5,182,494 (142)

Study on SAR/GMTI Processing for High-resolution Wide-swath SAR System

Leida xuebao, 2015
In recent years, there have been many studies on Synthetic Aperture Radar (SAR), and High- Resolution and Wide-Swath (HRWS) imaging has attracted increasing attention.
Xing Meng-dao, Sun Guang-cai, Li Xue-shi
doaj   +1 more source

Modelling real‐world effects in near‐field SAR collections for compressive sensing

IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
This paper develops previously published work on using compressive sensing techniques to suppress sidelobes in SAR images to develop a higher‐fidelity measurement model. Using Cranfield University's GBSAR System a series, experimental measurements are conducted, and image estimation techniques are applied to this real data.
George A. J. Price, Daniel Andre, Chris Moate, Peter Yuen, Mark Finnis   +4 more
wiley   +1 more source

A Novel Jamming Method Based on Micro‐Doppler Modulation and Electromagnetic Meta‐Materials

IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
In this paper, the jamming model based on the uniformly accelerated or decelerated rotating corner reflector and the electromagnetic meta‐materials is systematically discussed. Then, correctness of theoretical analysis is verified by simulations based on the airborne SAR echo data. Compared with the existing research, the jamming model proposed in this
Guikun Liu, Honglin Li, Feng Ming, Liang Li, Jingwen Mou, Chen Song, Zhengshuai Li, Peng Wang   +7 more
wiley   +1 more source

A Large Along-Track Baseline Approach for Ground Moving Target Indication Using TanDEM-X [PDF]

, 2007
In the paper a new method for ground moving target indication (GMTI) using two satellites (i.e. the TerraSAR-X and the TanDEM-X satellite) together is presented.
Baumgartner, Stefan, Bethke, Karl-Heinz, Krieger, Gerhard   +2 more
core  

Spaceborne Regional Surveillance Ground Moving Target Indication Based on Squint-TOPSAR

Leida xuebao, 2015
For military or civilian activities, it is important to monitor the direction of moving targets in a wide area. Traditional regional monitoring uses the airborne scanning mode (ScanSAR) within the limits of the national airspace.
Zeng Xiang-jie, Qi Xiang-yang
doaj   +1 more source

Efficient knowledge‐aided target relocation algorithm for airborne radar

The Journal of Engineering, Volume 2019, Issue 21, Page 7589-7592, November 2019., 2019
This letter addresses the problem of target relocation in wide‐area ground moving target indication system. The antenna pattern information is exploited as prior knowledge to enhance the performance of airborne radar. Firstly, the ideal target relocation model for moving targets based on the dual‐channel radar system is analysed and the mismatch model ...
Hongmeng Chen, Yaobing Lu, Jing Liu, Xiaoli Yi, Hanwei Sun, Heqiang Mu, Zeyu Wang, Ming Li   +7 more
wiley   +1 more source

A high precision estimation algorithm for multi‐channel wide‐area surveillance ground moving target indication mode based on maximum likelihood method

IET Radar, Sonar &Navigation, Volume 18, Issue 9, Page 1431-1443, September 2024.
A high precision estimation algorithm for ground moving targets in multi‐channel wide‐area surveillance ground moving target indication systems is proposed based on maximum likelihood method. The main concept of this novel algorithm is to estimate the azimuth angle of the detected targets using maximum likelihood method with the space steering vector ...
He Yan, Wenshuo Xu, Hui Liu, Jialin Hao, Zhou Min, Daiyin Zhu   +5 more
wiley   +1 more source

Improved moving target detector using sequential combination of DPCA and ATI

The Journal of Engineering, Volume 2019, Issue 21, Page 7834-7837, November 2019., 2019
The detection of moving targets on synthetic‐aperture radar images is one of the most popular approaches to monitor ground vehicles and ships on an ocean. Although the well‐known displaced phase centre antenna (DPCA) or along track interferometry (ATI) has good detection performance, they often produce high false alarm rates. A new scheme, i.e.
Myung‐Jun Lee, Min‐Seok Kang, Bo‐Hyun Ryu, Seung‐Jae Lee, Byung‐Gyun Lim, Tae‐Bong Oh, Kyung‐Tae Kim   +6 more
wiley   +1 more source

Dual-Platform GMTI: First Results With The TerraSAR-X/TanDEM-X Constellation [PDF]

, 2011
First ground moving target indication (GMTI) and parameter estimation results obtained with the German TerraSAR-X/TanDEM-X radar satellite constellation are presented and discussed.
Baumgartner, Stefan V., Krieger, Gerhard
core  

Phase‐coded radar waveform design with quantum annealing

IET Radar, Sonar &Navigation, Volume 18, Issue 3, Page 532-540, March 2024.
The Integrated Side Lobe Ratio (ISLR) problem the authors consider here consists in finding optimal sequences of phase shifts in order to minimise the mean squared cross‐correlation side lobes of a transmitted radar signal and a mismatched replica.
Timothé Presles, Cyrille Enderli, Gilles Burel, El Houssaïn Baghious   +3 more
wiley   +1 more source