Searched for: author%3A%22Maas%2C+A.P.M.%22
(1 - 15 of 15)
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Otten, M.P.G. (author), Maas, A.P.M. (author), Bolt, R.J. (author), Caro-Cuenca, M. (author), Medenblik, H. (author)
This paper presents a new multifunction radar that was specially designed for mini-UAV platforms. The multi-channel radar is omnidirectional, allowing great flexibility in radar- and flight operations. A demonstrator has been built, weighing 800 grams, and consuming 25 W. Flexible SAR, GMTI and novel sensing modes can be demonstrated with this...
conference paper 2018
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Suijker, E.M. (author), Bolt, R.J. (author), van Wanum, M. (author), van Heijningen, M. (author), Maas, A.P.M. (author), van Vliet, F.E. (author)
In this paper a first time right 24 GHz FMCW radar transceiver is presented. The MMIC has a low power consumption of 86 mW and an output power of -10 dBm. Due to the integrated IF amplifier, the conversion gain of the receiver is 51 dB and the base band signals are directly processed with an ADC. The developed antenna is a PCB dipole array with...
conference paper 2014
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Suijker, E.M. (author), Bolt, R.J. (author), van Wanum, M. (author), van Heijningen, M. (author), Maas, A.P.M. (author), van Vliet, F.E. (author)
In this paper a first time right 24 GHz FMCW radar transceiver is presented. The MMIC has a low power consumption of 86 mW and an output power of -10 dBm. Due to the integrated IF amplifier, the conversion gain of the receiver is 51 dB and the base band signals are directly processed with an ADC. The developed antenna is a PCB dipole array with...
conference paper 2014
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Deiana, D. (author), Suijker, E.M. (author), Bolt, R.J. (author), Maas, A.P.M. (author), Vlothuizen, W.J. (author), Kossen, A.S. (author)
A novel FMCW radar on a chip operating in the 24 GHz band has been used for presence detection in an office environment. Real time detection of small movements (i.e. typing) has been demonstrated. A comparison of the performances of the radar sensor and of the traditional intelligent lighting PIR sensor has been carried out. While the radar is...
conference paper 2014
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van Halsema, D. (author), Otten, M.P.G. (author), Maas, A.P.M. (author), Bolt, R.J. (author), Anitori, L. (author)
Synthetic Aperture Radar (SAR) systems are becoming increasingly important sensors in as well the military environment as in the civilian market. In this keynote presentation an overview will be given over more than 2 decades of SAR system∼ and SAR application development at TNO in the Netherlands. The overview will highlight some...
conference paper 2011
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Otten, M.P.G. (author), Maas, A.P.M. (author), Bolt, R.J. (author), van der Graaf, M.W. (author), Huizing, A.G. (author), Medenblik, H.J.W. (author), van Dorp, P. (author)
A light weight SAR has been designed and built, suitable for use on short range tactical UAVs. The system consists of a fully digital receive array, and a very compact active transmit antenna. The approximate weight of the complete system is 6 kg, with power consumption below 75 W, depending on the required data acquisition volume. This X-band...
conference paper 2011
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Belfiori, F. (author), Maas, A.P.M. (author), Hoogeboom, P. (author), van Rossum, W.L. (author)
The work presented in this paper was aimed at the design of a compact radar device to be used for private area surveillance applications. The radar is connected to a pan tilt zoom camera and it provides the camera system with high accuracy position information (bearing and range) of moving targets; in this way the camera can be steered to the...
conference paper 2011
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TNO Defensie en Veiligheid (author), Smits, F.M.A. (author), de Wit, J.J.M. (author), van Rossum, W.L. (author), Maas, A.P.M. (author), Bolt, R.J. (author), Lievers, C.M. (author)
An experimental radar system is described that is designed to determine a building map in three dimensions by driving past the building with the radar mounted on a vehicle. The radar system, SAPPHIRE, produces full polarimetric reflectivity data in three dimensions with a voxel resolution of <0.5 m in each direction at 10 m distance. SAPPHIRE...
conference paper 2009
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TNO Defensie en Veiligheid (author), Huizing, A.G. (author), Otten, M.P.G. (author), van Rossum, W.L. (author), van Dijk, R. (author), Maas, A.P.M. (author), van der Houwen, E.H. (author), Bolt, R.J. (author)
This paper describes a concept for a scalable RF sensor payload for small UAVs that can perform multiple RF functions such as synthetic aperture radar (SAR), ground-moving target indication (GMTI) and ESM. Essential to the scalable multifunction RF payload concept is the digitization of the antenna signals on transmit and receive at the antenne...
conference paper 2009
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van Rossum, W.L. (author), Lievers, C.M. (author), Maas, A.P.M. (author), Huizing, A.G. (author), TNO Defensie en Veiligheid (author)
This paper describes an active electronically scanned array (AESA) FMCW radar with eight transceivers. Each transceiver has its own Direct Digital Synthesizer (DDS) for signal generation which enables digital beam forming on transmit as well as on receive. The coherent operation of the eight transceivers and the capability to perform digital...
conference paper 2008
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TNO Defensie en Veiligheid (author), Janssen, J.P.B. (author), Monni, S. (author), Maas, A.P.M. (author), van Vliet, F.E. (author)
Front-end power overload protection is a vital issue in any electro-magnetic sensor. The issues around active electronically-steered arrays are more recent and pose new threats. Different categories of threats can damage the sensitive electronics in the phased-array radar, like hostile high power electro-magnetic (HPEM) pulses or the radar’s own...
conference paper 2008
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TNO Defensie en Veiligheid (author), Maas, A.P.M. (author), van Vliet, F.E. (author)
This paper describes the design and performance of a low-cost synthesized FMCW radar module, operating in S band. The bi-layer PCB contains a frequency-agile low phase-noise synthesizer and three identical coherent receive-channels. The transmit channel has an automatic power control system that reduces the output power when a large reflection...
conference paper 2008
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TNO Defensie en Veiligheid (author), van Dijk, R. (author), van der Houwen, E.H. (author), Maas, A.P.M. (author)
A phased-array FMCW radar has been design and built from COTS components. The generation of the frequency sweep is done by mixing a central local oscillator signal with a baseband sweep of a direct digital synthesizer (DDS). To ensure maximum flexibility the receive side has been equipped with it's own swept signal. The transmit frequency...
conference paper 2008
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TNO Defensie en Veiligheid (author), Maas, A.P.M. (author), Janssen, J.P.B. (author), van Vliet, F.E. (author)
A set of X-band absorptive limiter GaAs MMICs has been designed and realised using both the PPH25x foundry process from UMS and the PP50-10 process from WIN semiconductors. The innovative limiter concepts have been extensively characterised by both pulsed and CW measurements. Both passive and active topologies have been implemented. The passive...
conference paper 2007
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TNO Defensie en Veiligheid (author), Huizing, A.G. (author), Lievers, C.M. (author), van Rossum, W.L. (author), Maas, A.P.M. (author)
This paper describes an active electronically scanned array (AESA) FMCW radar with eight transceivers. Each transceiver has its own Direct Digital Synthesizer (DDS) for signal generation which enables digital beam forming on transmit as well as on receive. The coherent operation of the eight transceivers and the capability to perform digital...
conference paper 2007
Searched for: author%3A%22Maas%2C+A.P.M.%22
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