基于DSP的陀螺加速度计伺服回路设计

Design of PIGA's Servo Loop Based on DSP

集成电路以及DSP技术的发展,为摆式积分陀螺加速度计(PIGA)的“一体化”设计提供了可能;伺服回路是PIGA的重要环节,其性能直接影响PIGA的精度;传统的模拟伺服回路其电阻、电容等器件受工作环境影响,易老化、漂移,且无法实现复杂控制,DSP以及控制算法的发展为伺服回路的数字化设计提供了可能;通过实验分析,提出了用DSP设计数字伺服回路的方案,并具体设计了其校正网络;仿真结果表明该方案是可行的。

With the development of IC and DSP, the integration of PIGA is possible. As a main part of PIGA, the design of servo loop is very importanl. For traditional analog servo loop, aging and temperature can cause component variations, especially in complex environment, and it＇s hard to implement complex algorithm with analog system. So a new design based on DSP is presented after the experiment, and the correction network are designed. The simulation results show that the scheme is feasible.