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 and launcher for launching a projectile

Abstract: The invention relates to a method for launching a projectile and a launcher comprising a barrel (1) accommodating a. a projectile (2); b. a rocket motor (13) at the rear end of the projectile (2) comprising a first compartment containing a first propellant; c. a countermass (3) at the rear end of the barrel (1); and d. a second compartment between the rocket motor (13) and the countermass (3) containing a second propellant, wherein said first and second compartments form a high pressure chamber (6) subsequent to firing of the projectile (2).

Cable protector for a remote controlled underwater craft

Abstract: The present invention relates to a cable protector for underwater craft remote-controlled by cable. The function of the cable protector is to protect the operating cable (1) of the underwater craft against wearing and catching on the surface mother-ship from which the craft is operated. The cable protector guides the operating cable (1) out to such a great depth that it runs clear of the ship at the same time as it allows the cable to run out in any chosen direction at the same time as it limits the deflection angle at which the operating cable leaves the cable protector. The cable protector according to the invention comprises a first, essentially vertical part in the form of telescopically acting helical springs and ends at the bottom in a link system (26-34) which prevents any too tight bending of the operating cable at the same time as it ensures that the operating cable always runs out in the direction of the craft. The solution using telescopically acting helical springs (12, 17) results in low flow resistance through the water and in it being simple to vary the length/depth of the cable protector continuously within a wide range.

Receiver architecture for increased robustness to radar interference

Abstract: The present disclosure relates to exemplary embodiments of radar systems for providing increased robustness against radar interference transmissions and methods for controlling such radar systems. The radar system comprises at least one radar antenna configured at least for receiving a radar signal, a radar signal dividing means, a first receiver device and a second receiver device. The first receiver device is configured for monitoring a first frequency range and the second receiver device is configured for monitoring a second frequency range, wherein the second frequency range is wider than the first frequency range and the first frequency range is a subset of the second frequency range. The second receiver device is configured for measuring interference levels within the second frequency range. The present disclosure further relates to exemplary embodiments of methods for controlling the radar system, wherein the methods refer to measuring interference levels within the second frequency range, analysing measured interference levels, determining favourable frequency channels within the second frequency range in respect to interference level and possibly changing operating frequency channel in respect to measured interference levels.

Device and method for a sighting apparatus

Abstract: The invention relates to a sight system (100) for guiding a missile towards a moving target (9) by use of a guidance beam (8) that can be used for the missile to trail the target. The sight system (100) comprises a first viewing device (2) for receiving visible light and/or a second viewing device (2) for receiving non-visible light radiating from the target. The viewing device(s) (2, 3) comprise adjustable alignment marks (12, 13) being aligned by use of a light source (11) and a guidance beam detector (10) arranged together in one common position.