A New Target Radar Cross Section Based Passive Radar Surveillance Receiver Positioning Algorithm on Real Terrain Maps [PDF]
Radioengineering, 2018 Placing surveillance receivers on passive radar systems is a complex task because of the dependence on third party vendors. This paper presents an efficient and robust algorithm for positioning passive radar surveillance receivers for the intended ...
B. Tuysuz
doaj
A study of radar cross section measurement techniques [PDF]
Past, present, and proposed future technologies for the measurement of radar cross section were studied. The purpose was to determine which method(s) could most advantageously be implemented in the large microwave anechoic chamber facility which is ...
Mcdonald, Malcolm W.
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Numerical study on signatures of atmospheric convective cells in radar images of the ocean
, 1999 Current and wind variations at the ocean surface can give rise to a modulation of the sea surface roughness and thus become visible in radar images. The discrimination between radar signatures of oceanic and atmospheric phenomena can be quite difficult ...
Alpers +13 more
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An integral equation based numerical solution for nanoparticles illuminated with collimated and focused light [PDF]
, 2009 To address the large number of parameters involved in nanooptical problems, a more efficient computational method is necessary. An integral equation based numerical solution is developed when the particles are illuminated with collimated and focused ...
Challener +26 more
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Broadband RCS Reduction for Slot Array Antenna Using Polarisation Conversion Metasurface
IET Microwaves, Antennas & PropagationA polarisation conversion metasurface (PCM) is proposed to realise broadband radar cross section (RCS) reduction of a slot array antenna. The PCM's unit cell, whose polarisation conversion ratio (PCR) is more than 88% from 8.41 to 32.28 GHz under x‐and y‐
Weizhe Qu +4 more
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Design of retrodirector arrays for laser ranging of satellites [PDF]
The radar equation for laser ranging of satellites is described and the effect of the velocity aberration explained. Equations for the cross sections of cube corners and arrays of cube corners are derived.
Minott, P. O.
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Preliminary comparison of 3.5-cm and 12.6-cm wavelength continuous wave observations of Mars [PDF]
Radar observations of Mars at Goldstone in 1990 were conducted by transmitting pure sinusoidal signals at 3.5-cm wavelengths and receiving the Doppler-spread echoes from Mars at Earth. Radar transmissions were circularly polarized and the echoes recorded
Jurgens, R. F. +4 more
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Macro aerodynamic devices controlled by micro systems [PDF]
, 1997 Micro-ElectroMechanical-Systems (MEMS) have emerged as a major enabling technology across the engineering disciplines. In this study, the possibility of applying MEMS to the aerodynamic field was explored.
Ho, C. M. +4 more
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A Novel High Suppression Multilayer Frequency‐Selective Surface Based on Hexagonal Grids
IET Microwaves, Antennas & PropagationThis paper addresses the issue of achieving excellent overall performance for frequency selective surface (FSS) radomes. A dual‐layer frequency selective surface based on a hexagonal structure is proposed, which offers broadband suppression, roll‐off ...
Boyang Wang +4 more
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Radar echoes at 2.66 and 40.92 MHz from the mesosphere, part 2.6A [PDF]
During recent decades, the ionospheric D region has been scanned extensively by radar in the frequency range from 1 to 60 MHz. Progress has been made in understanding the reflection/scattering of radio waves in that area.
Royrvik, O.
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