MEASUREMENT OF 2 AXIS PLATFORM TILT AND ITS SOFT COMPENSATION

Abstract

Platform leveling describes a system or method adopted for leveling w.r.t horizontal plane. In many applications, platforms/turn tables have to be leveled before they can be used for instrumentation or other purposes such as accurate target positioning, Auto-leveling for vehicle-borne platform, alignment of machinery and construction. Many techniques have been adopted for leveling of a tilted platform. This thesis introduces a different technique, namely, soft leveling technique, which is based on error compensation of tilt in software rather than physical leveling of platform. The tilt in the platform is modeled, which is then estimated using an inclinometer. A least squares approach minimizes discrepancy due to measurement noise. The results of the proposed scheme as implemented on a physical system demonstrate the utility and accuracy of the method.