Collision Course Guidance for Discretely Maneuverable Projectiles

Download or read book Collision Course Guidance for Discretely Maneuverable Projectiles written by James H. Vogt and published by . This book was released on 1988 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program was to develop a guidance law for a projectile that has discrete maneuver capability. This type of guidance is motivated by the Command Adjusted Trajectory (CAT) program. The CAT fire control system command guides a tank-fired projectile, which is controlled by firing small squib motors. Since there are a finite number of squibs on a projectile, the guidance law should minimize the use of divert maneuvers while achieving acceptable miss distance. The primary target of the CAT system is a helicopter; however, the fire control system must be also capable of guiding projectiles in an anti-armor vehicle mission. Good correlation between analytical and Monte Carlo results are presented. Collision course guidance is shown to be superior to predictive proportional navigation for the CAT application. Collision course guidance yields near minimum squib (control fuel) usage while achieving acceptable miss distance. Keywords: Guided projectile trajectories; Intercept trajectories; Command guidance. (EDC).