Results 231 to 240 of about 22,466 (253)
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Architecture for advanced FMCW sounding
International Journal of Electronics, 1998Digital frequency synthesizers can be conveniently programmed to generate chirp signals with the required linearity, phase coherence and update rates. For HF applications, it is desirable to generate different patterns. In this paper, a versatile gate-array architecture suitable for repetitive regular chirps with or without initial frequency increments,
S. SALOUS, N. NIKANDROU
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2012
A light weight SAR, suitable for use on short range tactical UAV, has been designed and built. The system consistsof a fully digital receive array, and a very compact active transmit antenna. The approximate weight of thecomplete system is 6 kg, with power consumption below 75 W, depending on the required data acquisition volume.This X-band system is ...
Rossum, W.L. van +2 more
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A light weight SAR, suitable for use on short range tactical UAV, has been designed and built. The system consistsof a fully digital receive array, and a very compact active transmit antenna. The approximate weight of thecomplete system is 6 kg, with power consumption below 75 W, depending on the required data acquisition volume.This X-band system is ...
Rossum, W.L. van +2 more
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Automated FMCW Radar Experimental Platform
2018 2nd IEEE Advanced Information Management,Communicates,Electronic and Automation Control Conference (IMCEC), 2018I258 the study of frequency modulated continuous wave (FMCW) radar, it is difficult to complete an experiment with application-specific radars, since adapting their parameters bring much cost and time-consuming work. To address this problem, this paper presents an efficient and automated FMCW radar experimental platform. As a control center, a computer
Mingfang Wang +5 more
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High resolution polarimetric FMCW radar
Proceedings of IGARSS '93 - IEEE International Geoscience and Remote Sensing Symposium, 2002The Monash FMCW radar has been successful in detecting and locating defects in natural and man-made dielectrics (eg. defects in sawmill wood), with a range resolution, of 2 cm in wood. The authors show how to improve this resolution and provide polarimetric capability, which is important in anisotropic and optically active materials.
A.Z. Tirkel, C.F. Osborne
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Time-Domain Compressive FMCW LADAR
Imaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP), 2018We demonstrate an innovative approach to optical ranging well beyond the receiver bandwidth using < 0.5% of Nyquist sampling while achieving picowatt minimum sensitivity. This concept shows considerable promise for LADAR/LIDAR applications.
Bryan T. Bosworth +2 more
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Novel Development for FMCW Lidar
Imaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP), 2018Frequency-modulated continuous-wave lidar is evaluated for laser anemometry for helicopter, range finding and velocimetry at long range. Optimized signal processing is described as well as demonstration of range-finding/velocimetry from a few meters up to 10 km.
P. Feneyrou +10 more
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Compact FMCW advanced laser rangefinder
Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Edition. CLEO '99. Conference on Lasers and Electro-Optics (IEEE Cat. No.99CH37013), 2003Summary form only given. Contactless range finders are currently used for measuring distance and velocity in various applications fields. Depending on range and required accuracy different principles are applied. We present the principle of the FMCW laser range finder.
P. Besesty, P. Labeye, P. Thony
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2021
LIDAR technology has seen a big growth in development, driven mainly by the specific needs of the self-driving industry, especially autonomous cars. To answer these needs, FMCW LIDARs have shown to possess the necessary features and performance to meet the strict criteria required for the public road.
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LIDAR technology has seen a big growth in development, driven mainly by the specific needs of the self-driving industry, especially autonomous cars. To answer these needs, FMCW LIDARs have shown to possess the necessary features and performance to meet the strict criteria required for the public road.
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A 94GHz FMCW instrumentation radar
2007 Joint 32nd International Conference on Infrared and Millimeter Waves and the 15th International Conference on Terahertz Electronics, 2007We report on the use of a versatile 94GHz FMCW instrumentation radar to assess optimum hardware configurations for a variety of co-polar and cross-polar target classification studies. Phase noise and sweep linearity are critical parameters in FMCW radars and optimising them is a key objective of any high performance radar system.
D.A. Robertson +2 more
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The Kennesaw Journal of Undergraduate Research, 2021
Assid Nait, Theodore Grosch
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Assid Nait, Theodore Grosch
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