The airborne SAR-System: RAMSES NG airborne microwave remote sensing imaging system

Baqué, Rémi; Bonin, Gregory; Plessis, Olivier Ruault du

doi:10.1049/cp.2012.1598

Cited by 15 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Where are the equations used for system solving (10), and the number of used images. The minimization of (13) is computed by the Least Mean Squares (LMS) method.…”

Section: Inversion Of the Systemmentioning

confidence: 99%

“…The new RAMSES NG sensor [10] is dedicated to defense and security applications. The main improvement is the ability to operate as long range and ultra-high resolution in X band.…”

Section: A Presentation Of the Data Setsmentioning

confidence: 99%

“…For practical reasons, a significant part of airborne SAR systems is limited to one single channel. The SAR systems developed by the French Aerospace Lab ONERA (SETHI [9], and more recently RAMSES NG [10]) fit into this category. Standard single antenna processing exploits the moving target apparent characteristics to focus them [11,12] and estimate their azimuth velocity [13] under the assumption of a high PRF, in order to avoid the Doppler ambiguity problem [14].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ground Moving Target Trajectory Reconstruction in Single-Channel Circular SAR

Poisson

Oriot

Tupin

2015

IEEE Trans. Geosci. Remote Sensing

View full text Add to dashboard Cite

Abstract-Synthetic aperture radar has become an important technique for generating high-resolution images of the ground, because of its all-weather capabilities. SAR imaging of stationary scenes is nowadays well mastered. If targets are moving, it induces a delocalization and a defocusing effect in the azimuth direction in a SAR image. This last effect can be used to detect moving targets, to image them and to estimate their azimuthal velocity, but the main limitation is the impossibility to estimate the full target velocity vector, because of the Doppler shift dependency on azimuthal position and radial velocity. The purpose of this paper is to use several aspect angles thanks to a circular trajectory acquisition to retrieve the entire velocity and position vector. We first outline the steps of this trajectory reconstruction methodology, then we perform a mathematical analysis of this methodology and finally we present some tracking results on real data, around two French cities.

show abstract

“…Where are the equations used for system solving (10), and the number of used images. The minimization of (13) is computed by the Least Mean Squares (LMS) method.…”

Section: Inversion Of the Systemmentioning

confidence: 99%

“…The new RAMSES NG sensor [10] is dedicated to defense and security applications. The main improvement is the ability to operate as long range and ultra-high resolution in X band.…”

Section: A Presentation Of the Data Setsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ground Moving Target Trajectory Reconstruction in Single-Channel Circular SAR

Poisson

Oriot

Tupin

2015

IEEE Trans. Geosci. Remote Sensing

View full text Add to dashboard Cite

show abstract

“…Radar imaging [1] represents a powerful tool in several applications, such as security, surveillance, and environmental monitoring, with particular emphasis on disasters and crisis management [2][3][4]. In this frame, radar systems mounted onboard aerial platforms, such as airplanes [5][6][7][8], helicopters and drones [9], are gaining increasing interest due to their features allowing to overcome several limitations of radar systems mounted onboard terrestrial vehicles (carts, cars, ground track rails) [10,11] or spaceborne platforms [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

The ASI Integrated Sounder-SAR System Operating in the UHF-VHF Bands: First Results of the 2018 Helicopter-Borne Morocco Desert Campaign

et al. 2019

View full text Add to dashboard Cite

This work is aimed at showing the present capabilities and future potentialities of an imaging radar system that can be mounted onboard flexible aerial platforms, such as helicopters or small airplanes, and may operate in the UHF and VHF frequency bands as Sounder and as Synthetic Aperture Radar (SAR). More specifically, the Sounder operates at 165 MHz, whereas the SAR may operate either at 450 MHz or at 860 MHz. In the work, we present the first results relevant to a set of Sounder and SAR data collected by the radar during a helicopter-borne campaign conducted in 2018 over a desert area in Erfoud, Morocco, just after the conclusion of a system upgrading procedure. In particular, a first analysis of the focusing capabilities of the Sounder mode and of the polarimetric and interferometric capabilities of the SAR mode is conducted. The overall system, originally developed by CO.RI.S.T.A. according to a ASI funding set up in 2010, has been upgraded in the frame of a contract signed in 2015 between ASI and different private and public Italian Research Institutes and Universities, namely CO.RI.S.T.A., IREA-CNR, Politecnico di Milano and University of Trento.

show abstract

“…The first of these new systems, called SETHI is dedicated to civilian applications and is operated since 2007 [1]. RAMSES-NG is the follower of SETHI and is dedicated to defense and security applications.…”

Section: Introductionmentioning

confidence: 99%

The ONERA airborne multi-frequency SAR imaging systems

Plessis

Dreuillet

2013

2013 International Conference on Radar

View full text Add to dashboard Cite

RAMSES-NG and SETHI, the airborne SAR systems developed by ONERA, integrate new generation of radar and optronics payloads. They can operate over a wide range of frequency bands from UHF-VHF, to X-band including L band with long range, very high resolution, polarimetric and interferometric capabilities. Collected and processed Data are exploited for various studies in the field of Defence, Security and Remote sensing applications. In this paper, we describe these two SAR Systems and associated digital remote control. In conclusion some typical results are presented.

show abstract

The airborne SAR-System: RAMSES NG airborne microwave remote sensing imaging system

Cited by 15 publications

References 0 publications

Ground Moving Target Trajectory Reconstruction in Single-Channel Circular SAR

Ground Moving Target Trajectory Reconstruction in Single-Channel Circular SAR

The ASI Integrated Sounder-SAR System Operating in the UHF-VHF Bands: First Results of the 2018 Helicopter-Borne Morocco Desert Campaign

The ONERA airborne multi-frequency SAR imaging systems

Contact Info

Product

Resources

About