Synthetic line-of-sight algorithms for hardware-in-the-loop simulations

Details Synthetic line-of-sight algorithms for hardware-in-the-loop simulations Synthetic line-of-sight algorithms for hardware-in-the-loop simulations

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005spie.5785..258r&link_type=abstract

Technologies for Synthetic Environments: Hardware-in-the-Loop Testing X. Edited by Murrer, Robert Lee, Jr. Proceedings of th

Physics

Scientific paper

During the flight of guided submunitions, translation of the missile with respect to the designated aimpoint causes a rotation of the Line-of-Sight (LOS) in inertial space. Large transmit arrays or 5 axis CARCO tables are used to perform True LOS (TLOS) for in-band simulations. Both of these TLOS approaches have cost or fidelity issues for RF seekers. Typically RF Hardware-in-the-Loop (HWIL) simulations of these guided submunitions are mounted on a Three Axes Rotational Flight Simulator (TARFS), which is not capable of translation, and utilize a 2 to 3 seeker beam width transmit array. This necessitates using a Synthetic Line-of-Sight (SLOS) algorithm with the TARFS in order to maintain the proper line-of-sight orientation during all phases of flight which typically includes largely varying LOS motion. This paper presents a simple explanation depicting TLOS and SLOS (TARFS) geometry and the seamless boresight/target SLOS algorithm utilized in AMRDEC's RF4 facility for a test article flight profile. In conclusion this paper will summarize the current state of SLOS algorithms utilized at AMRDEC and challenges and possible solutions envisioned in the near future.

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