基于MEMS惯性器件的微小卫星导航系统的硬件加速设计  

Accelerate Digital Signal Process of MEMS-based Navigation System in Micro-satellite

作　　者：黄坤[1] 方锦明[1] 

机构地区：[1]浙江义乌工商职业技术学院计算机工程系,浙江义乌322000

出　　处：《计算机测量与控制》2011年第1期161-163,共3页Computer Measurement &Control

摘　　要：微小卫星的导航控制系统对体积、质量、功耗和成本都有着较高的要求;设计了一个基于微机电系统的惯性测量单元的组合导航控制系统;描述了该导航控制系统的详细片上系统(SOC)设计,提出了利用组件编辑器把系统中微处理器的部分软件任务通过硬件并行处理的方式来加速系统的运算速度;实验表明,导航控制系统的响应频率从24Hz提高到了35Hz,显著提升了系统的实时性能。Micro--satellite＇s navigation and control system has very strict requirement in volume, mass, cost and power consumption. Micro--Electro--Mechanical Systems （MEMS） based Inertial Measurement Units are integrated into the proposed combinatorial navigation and control system. Details of the System--on--Chip （SOC） design are presented in the navigation system. A novel method is exploited to accelerate system＇s digital signal process. Some of the traditional micro processor＇s tasks are implemented as hardware components, which are integrated into the SOC with on--chip--bus. As experiment demonstrating, response frequency of the navigation and control system is accelerated from 24Hz to 35Hz. Real time performance of the system has significantly improved.

关 键 词：硬件加速 片上系统 微小卫星导航 

分 类 号：U666.1[交通运输工程—船舶及航道工程]