Saab AB

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

Method for a multiple hollow charge and a multiple hollow charge for implementing the method

Abstract: The present invention relates to a method for a multiple hollow charge and a multiple hollow charge (10) for implementing the method. According to the invention, an increased effect is brought about in connection with or after penetration of a protection by virtue of the fact that the hollow-charge jets (18, 19) from at least a first and a second hollow charge (11 and, respectively, 12) are caused to collide on or after penetration of the protection.

Method and arrangement for washing anquipment

Abstract: The invention relates to a method for washing an equipment, such as sights, sensors and the like (1,5,6,7,8), with washing medium (15) being sprayed out through one or several fixed nozzles (9,10). The invention also relates to a washing arrangement working according to the method and comprising fixed nozzles (9,10), with pipes connected to the nozzles for conveying washing medium (15) from a container by means of a pump arrangement. The washing is carried out by the part of the equipment that is to be washed being rotated into a washing zone formed by the fixed nozzles (9,10) in conjunction with the washing medium (15). An even and effective washing of the equipment is achieved by means of the invention.

State propagation for targets moving in ground terrain

Abstract: This paper addresses the problem of propagating the state for a target moving in terrain, as a part of a tracking problem. The propagation is based on the assumption that the target has a goal, unknown to the observer, and that it chooses the fastest or otherwise least costly path to the goal. This is handled as a variational calculus problem, and the corresponding Euler-Lagrange equations thus lead to the state propagation equations. It turns out that the motion is very similar to that of light in media with varying index of refraction. The applicability of the method is discussed with particle filtering in mind.

Method for controlling transmission of an electronically steerable antenna system and such electronically steerable antenna system

Abstract: The present invention refers to a method for controlling transmission of an electronically steerable antenna system, wherein the electronically steerable antenna system comprises a signal generator configured to generate electromagnetic waveforms, and an antenna. The antenna comprises an even number of antenna columns symmetrically arranged about a centerline of the antenna and thereby forming two symmetrical antenna halves. Respective antenna column comprises at least one antenna element configured at least for transmitting electromagnetic waves. The electronically steerable antenna system is configured for transmitting at least interrogation signals and ISLS control signals, and the method comprises the method steps of, when transmitting the ISLS control signals: generating an electromagnetic waveform; applying a first transmission phase offset to the electromagnetic waveform, wherein the first transmission phase offset determines the phase offset between each antenna column pair; applying a second transmission phase offset to each antenna column of the second antenna half, wherein the second transmission phase offset of the second antenna half offset is 180 degrees in relation to the first antenna half;and transmitting the generated electromagnetic waveform whereto the first and the second phase offsets have been applied. The present invention also relates to an electronically steerable antenna system configured to execute the method.

An actuator having at least two rods arranged for individually motion

Abstract: The present invention regards a fluid actuator arrangement (1) comprising a first cylinder housing (3,3') comprising a first piston body (5, 5') comprising a first through-bore (11') and a first clamping element (13') provided for releasable clamping onto a first piston rod (15'). The first piston body (5, 5') comprises a second through-bore (11'') and a second clamping element (13'') provided for releasable clamping onto a second piston rod (15''); a first static holding unit (17) comprising a first clamping unit (19') provided for releasable clamping onto the first piston rod (15'); a second clamping unit (19'') provided for releasable clamping onto the second piston rod (15''); a first base member (23, 23') coupled to the first piston rod (15') via a first universal joint (31, 32', 34) for providing a rotational motion (R1, T1) of the first base member (23, 23') during longitudinal motion of the first piston rod (15'). The present invention also regards a method for providing a rotational motion of a first base member (23').