基于DSP的微型捷联惯性导航系统设计  

Design on Strap-down Inertial Navigation System Based on DSP

作　　者：何江海[1] 郭宪锋[2] 许家栋[1] 张会生[1] 

机构地区：[1]西北工业大学,西安710072 [2]中国电子科技集团公司第二十研究所,西安710068

出　　处：《微电机》2012年第2期59-62,共4页Micromotors

基　　金：国家自然科学基金(61075029);西北工业大学明德学院院级自选课题资助项目

摘　　要：捷联式惯性导航系统是一种先进的惯性导航技术,是近年来惯性技术的主要发展方向之一。该文章介绍了基于光纤陀螺的捷联惯导系统的设计,相对于平台惯导系统,捷联系统有很多优点,硬件简单,便于安装、维修和维护,大大降低了系统的成本。但捷联算法运算量大,因此需要用运算速度高的数字信号处理器作为解算单元,可以满足要求。给出了捷联惯导系统的数学模型以及方框图,重点介绍了系统的软件实现,给出了流程图,结果证明这一设计切实可行。Strap-down inertial navigation system （SINS） is an advanced technology and the one of the main developing trends of the inertial technology. The research of SINS based on DSP was introduced briefly in this paper. Compared with PINS, the SINS has many advantages, such as simple hardware, easy to use and maintain, there by reducing the cost. But it has large number of operation, so DSP is used to meet the demand. The maths-model and the block diagram of the SINS were given. The emphasis was put on the realization of the software. The program and its flowchart were given. All this has been put into effect and the result shows that the research is applicable.

关 键 词：惯性导航 陀螺 解算方法 数字信号处理器 

分 类 号：V241.622[航空宇航科学与技术—飞行器设计]