一种对称斜置式四陀螺惯导冗余配置方案  

Symmetrical and sideling redundancy configuration scheme of SINS using four gyroscopes

作　　者：程建华[1] 董金鲁 陈岱岱[1] 

机构地区：[1]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《传感器与微系统》2015年第2期16-19,27,共5页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(61374007;61104036);中央高校科研业务费专项资金资助项目(HEUCFX41309)

摘　　要：针对惯性器件冗余数量少,捷联惯导系统可靠度提升少的问题,首先分析了冗余优化准则的等价性,给出了最优冗余配置的充要条件。在基于四陀螺的正交方案、斜置方案和圆锥方案可靠度对比分析的基础上,提出一种对称斜置式方案,能进一步提高四陀螺方案的捷联惯导系统可靠度,而且该方案在陀螺出现故障时,系统精度具有很好的一致性,仿真结果表明:对称斜置式方案是陀螺数量为4个时的最优配置方案之一。该方案对于冗余数量较少的舰船惯导系统设计具有较强的借鉴意义。Aiming at problem that strapdown inertial navigation system（ SINS） has less reliability promotion with the condition of few redundant inertial device,analyze equivalence of redundancy optimization criteria,and give sufficient and necessary condition of the optimal redundant configuration. Based on contrastive analysis degree of reliability of orthogonal scheme,sideling scheme and cone scheme,a symmetrical and sideling configuration scheme is proposed for four-gyros configuration,this scheme can improve SINS reliability,and it has good consistency when one gyro is failed. Computer simulation results show that it is one of the optimal redundancy schemes for four-gyros configuration. The proposed scheme has a strong reference meaning for little number of shipborne SINS.

关 键 词：陀螺仪 冗余配置 可靠性 精度 平均无故障时间 测量矩阵 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]