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.

Saab NINS/NILS-an autonomons landing system for Gripen

Abstract: This paper presents a new approach for integrated landing systems. Applicable avionics platforms are military aircraft, helicopters, and unmanned aerial vehicles. In this paper we focus on the introduction of NILS (new integrated landing system) in the Saab fourth generation fighter JAS39 Gripen. NILS is based on an integrated navigation system (NINS) which is covered in the paper as well. The landing system in older generations of aircraft is usually designed by combination of different equipment. In the fourth generation aircraft the same functionality is solved in software implemented in the aircraft system computers. Typical applications of Saab NINS are accurate random route navigation (RNAV) under instrument flight rules, inputs to the auto-pilot, ground collision avoidance system (GCAS), terrain following, landing system and weapon initialization. Future applications are inputs to head-up or head-down display synthetic terrain presentation, mid-air collision avoidance system (MCAS) and passive target ranging.

De-icing arrangement and method for de-icing a structural element

Abstract: The present invention relates to a de-icing arrangement (300) and a method for de-icing a structural element. The de-icing arrangement comprises at least one electromagnetic actuator (304), a capacitive storage bank (303), a control unit (301) arranged to provide an excitation pulse (p) to the at least one electromagnetic actuator, and a charging circuit (302) arranged to charge the capacitive storage bank (403). The at least one electromagnetic actuator (304) is arranged to expand in at least one direction when fed with the excitation pulse. The at least one electromagnetic actuator (304) is placed in relation to said structural element so as to apply a mechanical force caused by the expansion on the structural element. The capacitive storage bank (303) comprises a plurality of selectable capacitors of different capacitance and the control unit (301) is arranged to select at least one capacitor for charging having a total capacitance such that current discharge of the capacitive storage bank into the at least one electromagnetic actuator generates a desired distribution between heat and mechanical power.

A method for cooling electronic components in an unmanned flying vehicle and a device for carrying out the method

Abstract: A device for cooling electronic components (8) of a control unit in an unmanned flying vehicle comprises a container (12) containing a liquid cooling medium, means (10) adapted to sense the temperature of said electronic components during the flight of said vehicle and means (13) adapted to be controlled by said temperature sensing means to spray said liquid cooling medium directly upon said electronic components when the temperature thereof exceeds a predetermined level.

Use of Cognitive Walkthrough for Evaluation of Cockpit Design

Abstract: This paper outlines the use of cognitive walkthrough for design and evaluation of an airplane cockpit. Designers need methods that can help predicting the outcome of proposed design features at an early stage of design and later during design alterations and updating. Since the design of a military aircraft may take 10-15 years, it is important to develop evaluation methods other than user testing. This report proposes the use of Cognitive Walkthrough (CW) to evaluate the Pilot-Cockpit Interface.

Wideband array antenna system development

Abstract: M-AESA is a joint Swedish-Italian development program for Multifunction AESA systems. This paper gives an overview of experiences and results for wideband array antenna systems within this program. The results include two high performance antenna functional models, a thorough theoretical and experimental basis for wideband array performance, studies of electromagnetic compatibility of closely located sensors and extensive evaluations of mechanical array designs, calibration approaches and subarray division.