基于DSP的星载光纤陀螺数据采集电路设计

陀螺及陀螺信息采集系统是航天器的重要部件，光纤陀螺是一种新型的陀螺.介绍了光纤陀螺的基本工作原理——Sagnac效应；设计了陀螺的信息采集系统硬件和软件，采用DSP芯片进行数据采集和处理,速度快、精度高，满足了实时性的要求；介绍了光纤陀螺组合的基于TI公司的DSP产品TMS320VC5402芯片数据采集和温度采集电路的实现技术；根据应用的环境不同，给出了电路的可靠性设计.本设计可灵活扩展应用于其它惯性产品的嵌入式系统的设计之中.

Design of optical fiber gyro data acquisition circuit applied in satellite based on DSP

The gyro and its information acquisition system is the important device of spacecraft.The optical fiber gyro is a new gyro device.Basic theory of optical fiber gyro,Sagnac effect,is introduced.Hardware and software design of gyro's information acquisition system is completed.DSP chip is adopted for(obtaining) and processing data due to its high speed,high sensitivity and real-time specialty.The optical fiber gyro data and temperature acquisition circuits based on TI DSP product TMS320VC5402 are realized.According to different environment,reliability design is described.The design technology can be applied expendably and flexibly in other embedded system for inertial products.