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.

Flight vision system and method for presenting images from the surrounding of an airborne vehicle in a flight vision system

Abstract: The present disclosure relates to a method (300) for presenting images from the surrounding of an airborne vehicle in a flight vision system. The method comprises the step of providing (310) a plurality of images of the surrounding of the airborne vehicle. The plurality of images originates from at least two different sources. The method further comprises assessing (320) a quality measure in each of the images out of the plurality of images. The quality measure relates at least to the visibility of objects in the plurality of images. The method even further comprises automatically deciding (330) from which of the at least two different sources at least one image out of the plurality of images should be displayed. The decision is based at least on the assessed quality measure. The method yet even further comprises displaying (340) the at least one automatically decided image in the flight vision system. The present disclosure also relates to a flight vision system, an airborne vehicle, a computer program product and a computer-readable storage medium.

T-shaped broadband bandpass filter

Abstract: The filter unit has a center frequency and comprises a first dielectric substrate, a first conducting plane, and at least one transmission arrangement. The at least one transmission arrangement comprises a shunt node which has a shunt connection to the conducting plane. The electrical length of the shunt connection defines the center frequency of the filter unit. The transmission arrangement further comprises a plurality of transmission lines connected in series between an input port and an output port, wherein each port is connectable to auxiliary systems with a system impedance. Moreover, each transmission line has a characteristic impedance and wherein the characteristic impedance of each transmission line is less than the system impedance.

Dynamically with tiltable magazine and method for launching countermeasures

Abstract: A dispenser for storing and launching countermeasures from an aircraft, comprising an elongate body provided with at least one launch opening where the countermeasures are stored in cartridges, where the cartridges are interconnect to each other in a slidable manner, and where the cartridges are adapted to be tilted by a tilting means to a selected angle, such that the openings of the cartridges can be directed in a selected direction. The advantage of the invention is that a countermeasure can be directed in a desired angle before it is launched.

Moulding method with sliding layer

Abstract: A method for producing an article of composite material comprising the steps of: - providing a moulding tool (140) of male type; - placing one or several prepregs (160) on the moulding tool, forming a fibre stack; - placing a dry layer (158), e.g. fabric, externally on the fibre stack, forming a fibre stack having a dry surface; - providing a moulding tool of female type (150); - overturning or tilting the stack having a dry surface from the male tool to the female tool. The method may further comprise the step of arranging said dry fibre layer so that this comprises the edge of the fibre stack. The dry layer may be made of a metal net or other suitable metal structures, or be made of glass fibre fabric or another similar glass fibre structure, or a combination of glass fibre and metal. The fact that metal is an electrically conducting material and that glass fibre is an electrical isolator may be exploited, particularly when producing aircraft components.

Elaboration of safety requirements

Abstract: According to the aircraft standard ARP4754A, requirements should be carefully traced and validated. A systematic methodology for safety requirements elaboration (refinement/decomposition as well as allocation management) is lacking. To overcome this lack, an ARP-aligned and DOORS implementable approach called RAP (Requirements Allocation Process) is proposed. RAP offers a textual as well as graphical means for managing safety requirements. Besides supporting requirements decomposition and allocation, RAP also supports design decisions. The usefulness of RAP is illustrated by an example, applying the approach to a High Lift System.