Searched for: subject%3A%22Airborne%255C%2Bradar%22
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TNO Defensie en Veiligheid (author), Lidicky, L. (author)
Moving target indication (MTI) using radar is of great interest in civil and military applications. Its uses include airborne or space-borne surveillance of ground moving vehicles (cars, trains) or ships at sea, for instance. Airborne (space-borne) radar offers several advantages when compared to optical imaging, they include: day-and-night, all...
doctoral thesis 2010
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Meta, A. (author), Hoogeboom, P. (author)
Combining frequency modulated continuous wave (FM-CW) teehnology with synthetic aperture radar (SAR) methods leads to a cost-effective, high resolution imaging radar for smallscale applications. There is a growing interest in miniaturized versions of such sysfems. The radar delivers its output in the frequency domain rather then in the time...
conference paper 2003
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de Wit, J.J.M. (author), Hoogeboom, P. (author)
Compact FM-CW technology combined with high resolution SAR techniques should pave the way for a small and cost effective imaging radar. A research project has been inìtiated to investigate the feasibility of FM-CW SAR. Within the framework of the project an operational airborne FM-CW SAR demonstrator is being implemented. Furthermore, a detailed...
conference paper 2003
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Greidanus, H.S.F. (author), Otten, M.P.G. (author), TNO Fysisch en Elektronisch Laboratorium (author)
Polarimetric SAR imagery of a coastal scene is discussed, in terms of polarimetric and kinematic properties of waves on the sea and breaking waves in the surf zone. The coastal zone is a dynamic environment, and there is an increasing demand for monitoring it. Remote sensing can be an economic solution, and this paper explores some possibilities...
conference paper 2002
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de Wit, J.J.M. (author), Hoogeboom, P. (author)
For small-scale earth observation applications, there ia a special interest in low-cost, high-resolution imaging radars small, enough to be operated from small, possibly unmanned aircraft. The combination of FM-CW technology and the high resolution of SAR systems should result in such a small, cost-effective imaging radar. In a new project the...
conference paper 2001
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Gommenginger, C.P. (author), Robinson, I.S. (author), Willoughby, J. (author), Greidanus, H.S.F. (author), Taylor, V. (author), TNO Fysisch en Elektronisch Laboratorium (author)
Empirical results from a field experiment in the southern North Sea have demonstrated the possibility to detect bathymetry-induced sea surface roughness modulation in the coastal zone using high frequency in-situ slope measurements provided by the Towed Laser Slopemeter. A strong correlation between enhanced/reduced slope power for ocean...
conference paper 1999
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Greidanus, H.S.F. (author), Huising, E.J. (author), Platschorre, Y. (author), van Bree, R.J.P. (author), van Halsema, D. (author), Vaessen, E.M.J. (author), TNO Fysisch en Elektronisch Laboratorium (author)
Digital elevation models (DEMs) are produced from airborne radar cross-track interferometric measurements. Radar DEMs recorded from perpendicular orientations are intercompared, and compared to DEMs derived from airborne laser altimetry
conference paper 1999
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Greidanus, H.S.F. (author), van Bree, R.J.P. (author), Huising, E.J. (author), Vogelzang, J. (author), Vaessen, E.M.J. (author), TNO Fysisch en Elektronisch Laboratorium (author)
Airborne radar along-track interferometric measurements of a coastal area with a complex tidal flow pattern are analyzed. The results are compared with a current field computed from a tidal model. Using wave-current interaction modeling, a radar backscatter image is simulated based on the measured current field, and compared to the measured...
conference paper 1999
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Bierens, L.H.J. (author), Otten, M.P.G. (author), TNO Fysisch en Elektronisch Laboratorium (author)
Describes the theoretical background of dynamic range limiting, an analog raw SAR data reduction technique. A Dynamic Range Limiter (DRL) breadboard model is presented, which has been used to prove the concept of this technique. The first results of the DRL experiment with the PHARUS airborne SAR system have shown that the DRL performs its...
conference paper 1998
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Greidanus, H.S.F. (author), Hoogeboom, P. (author), Koomen, P.J. (author), Snoeij, P. (author), Pouwels, H. (author), IEEE - Institute of Electrical and Electronics Engineers (author)
PHARUS is an airborne fully polarimetric C band SAR. It uses a compact phased array antenna with electronic beam steering. Its design provides for a flexible and robust system concept, suited for operational use on small aircraft. PHARUS was developed in The Netherlands to cater for both the military and civil markets. Its development was...
conference paper 1996
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TNO Fysisch en Elektronisch Laboratorium (author), Hoogeboom, P. (author), Dekker, R.J. (author), Otten, M.P.G. (author)
Synthetic Aperture Radar (SAR) is today a valuable source of remote sensing information. SAR is a side-looking imaging radar and operates from airborne and spacebome platforms. Coverage, resolution and image quality are strongly influenced by the platform. SAR processing can be performed on standard computers or dedicated hardware architectures,...
conference paper 1996
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TNO Fysisch en Elektronisch Laboratorium (author), Bierens, L.H.J. (author), van Heijster, R.M.E.M. (author), van Bezouwen, J.P. (author)
conference paper 1994
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Hoogeboom, P. (author), Koomen, P.J. (author), Snoeij, P. (author), Pouwels, H. (author)
The PHARUS project (PHARUS stands for Phased Array Universal SAR) aims for a polarimetric C-band aircraft SAR that will be finalized in 1994. The system will make use of a phased array antenna with solid state amplifiers. The project consists of two phases, a definition phase and a realization phase. The definition phase was intended to increase...
conference paper 1992
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Pouwels, H. (author), Hoogeboom, P. (author), Koomen, P.J. (author), Snoeij, P. (author)
The Dutch PHARUS project aims for the developrlenÈ of a polarimetric C-band aircraft SAR, to be finalized in 1994. The PHARUS systen consists of three subsystens: the radar, the subsystem for the onboard data processing and recording and the ground-based subsystem for SAR processing. PHARUS is a very flexible system with numerous operating modes...
conference paper 1992
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Fysisch en Elektronisch Laboratorium TNO (author), de Loor, G.P. (author)
conference paper 1990
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Fysisch en Elektronisch Laboratorium TNO (author), Hoogeboom, P. (author)
Het classificeren en monitoren van de groei van landbouwgewassen met behulp van radarbeelden is geen eenvoudige opgave. De contrasten in één enkel beeld zijn vaak klein. De aanwezige spikkel maakt het onderscheiden van gewassen nog moeilijker. Een radarbeeld omvat altijd een zeker invalshoekbereik en voor gewassen is de...
conference paper 1990
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Hoogeboom, P. (author), Koomen, P.J. (author), Pouwels, H. (author), Snoeij, P. (author)
In The Netherlands a plan to design aircraft and build a polarimetric C-band SAR system of a novel design, called PHARUS (PHased Array Universal SAR) is carried out by three institutes. These institutes are the Physics and Electronics Laboratory TNO in The Hague (prime contractor and project management), The National Aerospace Laboratory NLR in...
conference paper 1990
document
Hoogeboom, P. (author), Koomen, P.J. (author), Otten, M.P.G. (author), Pouwels, H. (author), Snoeij, P. (author)
A few years ago three institutes in the Netherlands developed a plan to design and build a polarimetric C-band aircraft SAR system of a novel design, called PHARUS (PHased Array Universal SAR), meant as a replacement for our current digital SLAR system. These institutes are the Physics and Electronics Laboratory TNO in The Hague (prime...
conference paper 1989
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Hoogeboom, P. (author), Koomen, P.J. (author)
In The Netherlands a digital SLAR system (X-band) is used since many years remote sensing in radar remote sensing research. An example of results and the system's key features are given in this paper. Calibration and high geometric and radiometric accuracy were the keywords to success in remote sensing for this system. Based on this experience a...
conference paper 1989
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Hoogeboom, P. (author)
In The Netherlands a digltal SLAR system (X-band)is used since many years in the radar remote sensing research. This system supports research Programs in which also other equipment is used, for instance a multiband airborne scatterometer. Based on our experience in radar remote sensing a polarimetric C-band aircraft SAR is designed, to be...
article 1988
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