本文针对谐振式光纤陀螺应用需求，提出一种基于激光器温度和 PZT协同控制的频率跟踪锁定控制方案，综合利用激光器温度调谐所具有的大范围、PZT电压调谐的高精度高动态技术优势，实现光纤激光器中心频率对谐振腔谐振频率的跟踪锁定。进行了透射式谐振信号的数学仿真，对温度和 PZT协同控制方案进行了硬件设计和算法仿真，重点分析了频率跟踪锁定方案中控制参数对锁定稳定性的影响情况。完成了激光器频率锁定系统的研制，实现了激光器中心频率对谐振腔谐振频率的高精度、长时间跟踪锁定，常温条件下 1 h频率跟踪锁定精度为 4.8×10-9，变温条件下 5.5 h频率跟踪锁定精度低至 9.74×10-8。上述研究工作为谐振式光纤陀螺长期性能提升奠定了重要的技术基础。

Aiming at the application requirement of resonator fiber optic gyroscopes, a frequency tracking and lock-ing control scheme based on laser temperature and PZT control is proposed in this paper. By taking advantages ofthe large range of laser temperature tuning as well as the high precision and high dynamicity of PZT tuning, trackingof the fiber laser’s central frequency to the fiber ring resonator’s resonance frequency is realized. Typical transmis-sion resonant curve is simulated by mathematical methods. Hardware design, algorithm simulations of temperatureand PZT control scheme are carried out. The influence of control parameters on tracking stability is analyzed. Thedevelopment of laser frequency tracking systems is assembled. The high-precision and long-time tracking of laser’scentral frequency to resonance frequency is realized successfully. The locking precision is low to 4.8×10-9hour under room temperature. The locking precision is low to 9.74×10-8 over 5.5 hours under variable temperature. over oneThis work has laid an important foundation for improving the long-term performance of resonator fiber optic gyros-copes.