A rotation vector algorithm is applied as attitude matrix update algorithm in attitude measurement system.To ensure the system s real-time capability,a new method of repeated use of sampling data is proposed,which make up the deficiency of long sampling cycle in three-sample algorithm.The system hardware mainly includes angle rate sensor(ceramic static gyro CG-L53),signal sampling board(based on AT89S51 MCU),and computer platform(based on ARM CPU).Linux is introduced to design software in each model to real...