摘要
在现代国防军工领域,光电系统被广泛应用于火控、侦察、制导等武器系统中。随着目标机动性能的提升,光电武器系统对其伺服系统动态性能的需求也不断提高,光电伺服系统的带宽也要随之拓展。但机械系统固有特征不会改变,接近或者超过自然机械共振频率的驱动能量就会引起机械谐振。为了提高光电伺服系统性能,需对检测和抑制机械谐振的问题进行研究。首先通过激励信号性质分析,选取性质优良、计算简单的激励信号对光电伺服系统的机械谐振进行参数辨识,然后设计可参数化的陷波滤波器进行在线参数调整,就可实现快速有效地机械谐振抑制。实验结果表明,该机械谐振检测和抑制的方案能够精确地检测机械谐振频率,很好地抑制机械谐振产生的影响,提高光电伺服系统的动态性能。
In the field of modern national defense and military industry, photoelectric systems are widely used in in fire control, reconnaissance, guidance and other weapon systems. With the improvement of target maneuverability, the demand for dynamic performance of servo system for photoelectric weapon systems increases, and the bandwidth of photoelectric servo system has to be expanded. However, the inherent characteristics of the mechanical resonance do not change and the driving energy close to or exceed the nature mechanical resonance frequency does cause mechanical resonance. In order to improve the performance of photoelectric servo system, the detection and suppression of mechanical resonance needs to be studied. Firstly, through the analysis of the characteristics of the stimulus signal, the stimulus signal with excellent characteristics and low-calculation is selected to identify the parameters of the mechanical resonance of the photoelectric servo system, and then a parameterized notch filter is designed for online parameter adjustment, which can realize a rapid and effective suppression of mechanical resonance on photoelectric servo system. The experimental results show that the scheme of mechanical resonance detection and suppression can accurately detect the mechanical resonance frequency, well suppress the influence of mechanical resonance and improve the dynamic performance of photoelectric servo system.
作者
杨松涛
和丽清
YANG Song-tao;HE Li-qing(The 11th Research Institute of CETC,Beijing 100015,China)
出处
《激光与红外》
CAS
CSCD
北大核心
2023年第1期84-89,共6页
Laser & Infrared
关键词
光电伺服系统
伪随机序列
陷波滤波器
机械谐振
photoelectric servo system
pseudo random sequence
notch filter
mechanical resonance
