基于DSP的激光陀螺稳频回路设计及其参数整定

 针对某小型化激光陀螺，对基于TMS320F2810数字信号处理芯片（DSP）的激光陀螺交流抖动稳频回路设计及其参数整定进行了理论分析、Matlab数值仿真和实验研究。TMS320F2810这款芯片具有集成度高、处理速度快、功耗低和性价比高等突出优点，有利于实现激光陀螺控制系统的小型化。基于这款DSP芯片实现了某小型化激光陀螺的交流抖动稳频回路的软、硬件设计，使用衰减曲线法得到了该型激光陀螺经优化后的PID控制参数（Kp=0.048，Ki=0.059，Kd=0.013），并根据国军标对稳频回路进行了实验验证。实验结果表明，稳频控制回路经过PID参数整定后，该小型化激光陀螺的零偏稳定性从0.025°/h降到0.014°/h，该稳频控制回路在目标型号激光陀螺上满足预期的性能指标要求。

Implementation and parameter optimization for path length control of ring laser gyro based on DSP

The main characteristics of TMS320F2810 were introduced and its application in path length control (PLC) technology in ring laser gyro (RLG) was discussed, numerically simulated and experimentally implemented. TMS320F2810 is characterized by high integration, good processing capability, low power dissipation and high performance price ratio, which is very convenient for digital integration and compact design of the RLG control system. Alternative current (AC) path length control system was implemented by this digital signal processing (DSP) chip and some associated circuits, and proportional-integral-derivative (PID) control parameters were optimized based on Simulink simulation. PLC system was implemented and its software and hardware diagrams were presented, some optimized PID parameters (Kp=0.048, Ki=0.059, Kd=0.013) were obtained, and the whole control loop was experimentally verified. The experimental results show that the performance of the RLG is improved obviously, the bias stability is reduced from 0.025°/h to 0.014°/h after PID parameter optimization, and the anticipated objective is realized by the proposed control loop.