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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。
Strapdown inertial navigation system is an advanced inertial navigation technology, which is one of the main development directions of inertial technology in recent years. This paper introduces the design of strapdown inertial navigation system based on FOG. Compared with the platform inertial navigation system, the strapdown system has many advantages. The hardware is simple and easy to install, repair and maintain, which greatly reduces the system cost. However, the strapdown algorithm requires a large amount of computation and therefore needs a digital signal processor with a high computation speed as a solution unit to meet the requirements. The mathematical model and the block diagram of SINS are given, the software implementation of the system is introduced emphatically, and the flow chart is given. The result proves that this design is feasible.