Saab AB

About: Saab AB is a company organization based out in Thun, Switzerland. It is known for research contribution in the topics: Signal & Antenna (radio). The organization has 862 authors who have published 928 publications receiving 8807 citations. The organization is also known as: Saab AB & Svenska Aeroplan AB.

Detection of hostile aircraft behaviors using dynamic Bayesian networks

Abstract: Aircraft Combat Survivability in military air operations is concerned with survival of the own aircraft. This entails analysis of information, detection and estimation of threats, and the implementation of actions to counteract detected threats. Beyond visual range weapons can today be fired from one hundred kilometers away, making them difficult to detect and track. One approach for providing early warnings of such threats is to analyze the kinematic behavior of enemy aircraft in order to detect situations that may point to malicious intent. In this paper we investigate the use of dynamic Bayesian networks for detecting hostile aircraft behaviors.

Arrangement for weapon

Abstract: The invention relates to an arrangement for a weapon comprising a countermass (6) for reducing the pressure around the weapon. The countermass (6) is enclosed in a countermass container (5) which can be opened at both ends (8, 28). The invention aims to bring about a symmetrical opening with favourable recoil in a better way than in previous constructions. This is achieved by the countermass comprising means which can bind and retain the liquid symmetrically in a desired geometry over the cross section of the barrel and the cross section of any following expansion part.

Electronic structure of InAs(1¯ 1¯ 1¯)2×2 and InSb(1¯ 1¯ 1¯)2×2 studied by angle-resolved photoelectron spectroscopy

Abstract: The electronic structure of molecular-beam-epitaxy-grown InAs(1\ifmmode\bar\else\textasciimacron\fi{} 1\ifmmode\bar\else\textasciimacron\fi{} 1\ifmmode\bar\else\textasciimacron\fi{})2\ifmmode\times\else\texttimes\fi{}2 and InSb(1\ifmmode\bar\else\textasciimacron\fi{} 1\ifmmode\bar\else\textasciimacron\fi{} 1\ifmmode\bar\else\textasciimacron\fi{})2\ifmmode\times\else\texttimes\fi{}2 surfaces is investigated by angle-resolved photoelectron spectroscopy. Valence-band spectra, and dispersions of five surface-related structures, are presented. The qualitative similarities of data from the two surfaces indicate that they are very similar, with respect to atomic and electronic structure. Comparisons with other (111) surfaces support the identification of the surface-related structures. \textcopyright{} 1996 The American Physical Society.

Method of extending countermass weaponry usability and of countermass weaponry produced in accordance therewith

Abstract: The subject invention concerns a method and a device enabling said packed countermass material (11) to open up said countermass packagings (10) in relation to the firing of countermass weaponry. The basic concept for the subject invention is, thus, that one near the rear outlet end (12) of a countermass weapon (1) barrel fashion a number of blades (15) to the interior of the outlet that protrude inwardly into the barrel sufficiently so as to cut into said countermass container (10), which is pressed past said blades (15) upon firing said weapon (1).

Prognostics of thermal fatigue failure of solder joints in avionic equipment

Abstract: A practical method has been suggested for solder joint thermal fatigue prognostics, which enables real-time fatigue calculations based on uncompressed temperature data embedded in a host system that performs safety-critical operations. The accuracy of the prognosticated remaining useful life depends on the level of details captured in the model, and the level of confidence from validation efforts.