Discrete impulse spinning-body hard-kill (disk)

DETAILED DESCRIPTION DISK is a munition system for intercepting a target wherein the system comprises a base platform dispenser, a right circular cylinder having a circular periphery, forward and back parallel end faces and a longitudinal axis.
Wherein the dispenser includes a means for spinning the cylinder about the longitudinal axis and for launching the spinning cylinder along a preselected path with the longitudinal axis being in a preselected orientation.
The cylinder comprises a controllable propulsion means located about the periphery of the cylinder.
The controllable propulsion means may either be a continuous propulsion means or discrete solid propellant thrusters.
The target sensing means is located on the forward end face of the cylinder.
The sensor has a fan-shaped field-of-view which returns the attitude angle measurement between the cylinder and the target once per revolution when the line-of-sight to an observed target object passes through the field-of-view.
The cylinder further comprises a magnetometer.
The magnetometer is located within the cylinder, and as the cylinder rotates, the magnetometer senses rotational motion.
This is accomplished due to the inherent locally homogeneous magnetic field of the earth and the inherent characteristics of an air coil which can sense these flux densities.
The cylinder further comprises a proportional navigation means.
The navigation means comprises a plurality of accelerometer pairs.
The first and second accelerometer pairs are positioned upon the X and Y axes such that they sense precessional motion as the cylinder rotates about its longitudinal axis.
The proportional navigation means then combines the measured precessional motion with the measured rotational motion to calculate the line-of-sight error for the target sensing means.
By correcting for the precessional and rotational error the DISK device is able to position itself with its thrusting means in such a manner that it will intercept its target.