An Investigation of Steep Descent Guidance for Terminally-Guided Sub-Munitions,
DEFENCE RESEARCH ESTABLISHMENT VALCARTIER (QUEBEC)
Pagination or Media Count:
The lateral acceleration requirement of a hit-to-kill terminally-guided submunition TGSM aimed at hitting tanks near the top is examined. An analytic development of proportional navigation against stationary targets shows that a TGSM flying level at 150 m above the ground can hit a target 150 m in front of it with near vertical impact and without acceleration saturation if it can pull an initial 13.6 g. With acceleration saturation, a hit is theoretically possible with 6.8 g. TGSM configurations capable of hitting stationary and moving targets are then defined and tested with a nonlinear 6-DOF computer simulation. The footprint of a selected configuration is provided. It is observed that the 10-g configuration is sufficient to hit most stationary and moving tanks likely to be found on the battlefield with impact angles above 60 deg and reasonable angles of attack.
- Air Navigation and Guidance