基于DSP的旋转弹用微小型导航系统设计

Design of Micro-navigation for Spinning Projectile based on DSP

在无陀螺捷联惯导系统中,针对旋转弹体积小、功耗大、采样频率高、姿态变化快、解算周期短等问题。为满足旋转弹对其导航计算机的严格要求,提出了一种基于DSP的旋转弹用微小型导航系统设计,首先叙述了系统的总体方案设计,接着重点介绍了系统各模块的软硬件设计。本设计在硬件上节省了系统的体积和功耗,软件设计上节省了解算周期。

In the gyroscope-free strapdown inertial navigation system,the spinning projectile has little volume,low power,high sampling rate,high roll angular velocity and short resolving time.To meet the strict requirements of the spinning projectile to its navigation computer,adesign of micro-navigation for spinning projectile based on DSP is proposed.The article first narrated the processor of system project design and chip selection,summarized structure and character of DSP.Then it focused on introduction of hardware and software design of GFSINS.This design saves the volume and power in the hardware and period of resolving in the software.