Abstract: A method of calibrating antenna-position detection associated with a radar system, the radar system including a first gimbal and a first angle sensor configured to detect an angular position of the first gimbal, includes mounting a second angle sensor to the first gimbal configured to detect an angular position of the first gimbal. The first gimbal is rotated through each angular position of a set of the angular positions. A first set of data is generated with the first angle sensor that characterizes a detected angular position of the first gimbal. A second set of data is generated with the second angle sensor that characterizes a detected angular position of the first gimbal. A third data set is determined comprising differences, between the first and second data sets, in detected angular position at each first-gimbal angular position. The third data set is stored in a memory device.

Abstract: A method of calibrating antenna-position detection associated with a radar system, the radar system including a first gimbal and a first angle sensor configured to detect an angular position of the first gimbal, includes mounting a second angle sensor to the first gimbal configured to detect an angular position of the first gimbal. The first gimbal is rotated through each angular position of a set of the angular positions. A first set of data is generated with the first angle sensor that characterizes a detected angular position of the first gimbal. A second set of data is generated with the second angle sensor that characterizes a detected angular position of the first gimbal. A third data set is determined comprising differences, between the first and second data sets, in detected angular position at each first-gimbal angular position. The third data set is stored in a memory device.

Abstract: A non-lethal projectile belt and feeding apparatus for improving prior art components of a non-lethal projectile launch system including the non-lethal projectiles and the non-lethal projectile feeding apparatus that are, when used in conjunction, mechanically deterministic, jam-free, gravitationally independent, cost efficient, while achieving a higher accuracy, a longer effective range, a feed rate not limited by gravity and maintaining a high capacity. These non-lethal projectiles are made of non-spherical and elongated outer shells 20 with tailfins 22 and index holes 21. The projectiles are either filled with an application-specific liquid or a powdered substance 29. In a paintball application, the shell is usually made of gelatin, filled with a water-based dye. The shell 20, index holes 21 and tailfins 22 are held together by a tape 27 with perforations 26 that define the boundaries between successions of the non-lethal projectile units.