Results 281 to 290 of about 35,695 (318)
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Engineering multirate convolutions for radar imaging
1996 IEEE International Conference on Acoustics, Speech, and Signal Processing Conference Proceedings, 2002We present a schematic design methodology for multirate convolution systems, based on combined algorithmic development and architecture design. It allows us to map the algebraic specification of a long convolution algorithm directly onto efficient fast convolution hardware based on short FFT processor elements or dedicated VLSI processors.
Bierens, L.H.J., Deprettere, E.F.
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Multistatic radar imaging of moving targets
2010 IEEE Radar Conference, 2010We develop a linearized imaging theory that combines the spatial, temporal, and spectral aspects of scattered waves. We consider the case of fixed sensors and a general distribution of objects, each undergoing linear motion; thus the theory deals with imaging distributions in phase space.
Ling Wang 0012 +2 more
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Fractures In Limestone Imaged By Radar
11th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems, 1998Radar data collected along profiles and in grids have assisted in identifying subsurface pathways that might carry motor fuel known to be contaminating domestic water wells. Disruptions of reflections were visible in conventional radar profiles were interpreted as fractures zone in limestone bedrock. Radar data acquired in a grid over zones where these
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Estimation Of Range-doppler Radar Images
1993 IEEE International Symposium on Circuits and Systems, 2002It is shown that most accurate reconstruction of a range-Doppler target density that can be computed from N waveforms and their echoes is obtained by transmitting the singular functions corresponding to the N largest singular values of two kernels derived from the target density.
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Physics Bulletin, 1984
Why is there so much interest in space radar systems? Radar is the way to monitor changing events in a reliable manner as it is largely independent of weather – particularly useful for Europe which is so often widely cloud-covered.
P H A Martin-Kaye, G M Lawrence
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Why is there so much interest in space radar systems? Radar is the way to monitor changing events in a reliable manner as it is largely independent of weather – particularly useful for Europe which is so often widely cloud-covered.
P H A Martin-Kaye, G M Lawrence
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Future Trends in Automotive Radar / Imaging Radar
28th European Microwave Conference, 1998, 1998There is a growing interest of car manufacturers in sensors monitoring the car's surrounding area in order to improve safety systems from mere crash survival to crash prediction or prevention by early detection of hazardous situations. Therefore radar sensors have been intensively investigated for many years.
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Radar Systems (RADAR 97), 1997
In this paper an algorithm based on emerging data compression techniques and suitably adapted to the radar data of a VTS (Vessel Traffic Service) System is presented. The basic idea derives from the JPEG (Joint Photographic Experts Group) standard which converts image data to a spatial frequency representation using a 2-D discrete cosine transform (DCT)
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In this paper an algorithm based on emerging data compression techniques and suitably adapted to the radar data of a VTS (Vessel Traffic Service) System is presented. The basic idea derives from the JPEG (Joint Photographic Experts Group) standard which converts image data to a spatial frequency representation using a 2-D discrete cosine transform (DCT)
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2020
Radar as a coherent imager is physically based on the wave equations that govern the behavior of wave-targets interactions through the process of radiation, transmission, propagation, and reflection/refraction. This chapter briefly introduces the stochastic wave equations at a minimum but sufficient level to serve as fundamentals of radar imaging ...
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Radar as a coherent imager is physically based on the wave equations that govern the behavior of wave-targets interactions through the process of radiation, transmission, propagation, and reflection/refraction. This chapter briefly introduces the stochastic wave equations at a minimum but sufficient level to serve as fundamentals of radar imaging ...
openaire +1 more source