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Since the discovery of a theoretical idea of spin-transfer torque (STT) [1], STT-MRAM has attracted a great interest as a candidate of universal memory.
The first occultation mission in the Korean space program, KOMPSAT-5, is scheduled for launch in 2010. KOMPSAT-5 will have a dual frequency GPS receiver to generate precision orbit determination data and occultation data. The KOMPSAT-5 spacecraft and the characteristics of its occultation payload are described in this paper. An occultation processing system developed by KASI is also introduced.
We built and tested a forward-looking polarimetric GPR which measured the scattering matrix of targets. The scattering matrix can be transformed to determine the polarizability angle, relative phase angle, and target magnitude. These quantities are invariant to rotations about the sensor-to-target axis. Measurements were made on dry sand without a target, sand with a buried polystyrene cylinder, and...
The usefulness of ground penetrating radar to detect landmines has been limited because of low signal-to-clutter ratios which result in high false alarm rates. We describe a method using polarimetric radar to measure the polarizability angle, the relative phase, and the target magnitude. These three independent quantities are directly related to target shape and dimensions and are invariant to rotation...
Recent developments in femtosecond fibre laser combined with the photomixing technique enable THz radiation between 50 GHz up to 3000 GHz to be synthesised. This solid state source THz is dedicated to high resolution spectroscopy in a spectral region no other solution offering the large tunability required.
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