摘要
提出并设计了基于FPGA的自适应逼近式锁频伺服控制器,详细阐述了自适应逼近式锁频技术的算法流程,简化了闭环锁频控制系统参数整定的过程。搭建了单路静态模拟转动系统,测试了锁频控制系统对阶跃信号的响应能力;提出了设置分段阈值和步进的优化方法,解决了锁频精度与锁频跟踪速度的矛盾;在谐振式光学陀螺的实际转动测试中,得到了8.34 k Hz的锁频精度和优于25 k Hz/us的锁频跟踪速度。实验表明所设计的自适应伺服控制器,满足了谐振式光学陀螺检测系统对谐振频率高精度锁定及快速跟踪的要求。
The servo controller based on FPGA to lock the frequency with approaching resonant frequency adap- tively is proposed and designed. The process of the algorithm is expounded in detail. The static simulating rotation sys- tem is build to test the response capability to the step signal in frequency lock control system. The optimization method of different approaching step among the segmentation threshold is put forward,which the contradiction between the loc- king frequency accuracy and the frequency tracking speed has been solved In the actual rotation test of the resonant op- tical gyro,8.34 kHz frequency locking accuracy and better than 25 kHz/us frequency tracking speed are obtained. Ex- periment shows,the designed adaptive frequency servo controller can meet the requirement of the high frequency loc- king precision and fast tracking resonant frequency in the resonant optical gyroscope system.
出处
《激光杂志》
北大核心
2018年第3期28-31,共4页
Laser Journal
基金
国家杰出青年基金(No.51225504)
关键词
伺服控制器
静态模拟转动系统
锁频精度
谐振式光学陀螺
servo controller
static simulating rotation system
locking frequency accuracy
resonant optical gyro- scope
