Vessel Surface Equipment Attitude Measurement Based on Conventional Inertial Reference System

Vessel weapon firing precision is deeply influenced by the attitude, which also affects vessel combat efficiency. In order to realize the high precision determination of vessel weapon attitude, this paper presented the weapon attitude measuring theory based on CIRS(Conventional Inertial Reference System). The theory contained star apparent place synchronous calculation, star image coordinates calculation and three-axis attitude solution. It was realized that weapon attitude measurement could be carried out in the sailing, which error was not accumulated. The advantage of this theory is high precision, high reliability and low cost.