Data acquisition and precision evaluation system for integrated navigation system based on VxWorks

Data Acquisition and Precision Evaluation System for Integrated Navigation System is a solution that can solve the difficulties of integrated navigation system test and forming general testing methods. A high-speed real-time data acquisition and forwarding algorithm is developed using the VxWorks OS. The algorithm is designed to acquire the output data timely and accurately. According to the difference of the characteristic of the subsystem of the integrated navigation system, the precision evaluation algorithm for INS, platform compass and such inertial system is designed refer to the positions and velocities of GNSS, attitudes of astronomical theodolite and angular rate of angular rate measurement system. The precision evaluation system is applied to a novel INS test on sea.