改进的导弹半实物仿真跟踪微分器设计  

Modified tracking differentiator design for missile in hardware-in-loop simulation system

作　　者：明超[1] 孙瑞胜[1] 白宏阳[1] 祝刚[2] MING Chao;SUN Ruisheng;BAI Hong-yang;ZHU Gang(School of Energy and Power Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;Institute of Electronic Engineering, China Academy Engineering Physics, Mianyang 621900, China)

机构地区：[1]南京理工大学能源与动力工程学院,江苏南京210094 [2]中国工程物理研究院电子工程研究所,四川绵阳621900

出　　处：《国防科技大学学报》2017年第5期68-73,共6页Journal of National University of Defense Technology

基　　金：国家自然科学基金资助项目(11176012)

摘　　要：为了抑制三轴转台输出信号存在相位延迟和噪声对导弹半实物仿真系统性能的影响,研究并设计了一种改进的跟踪微分器进行相位补偿和滤波。基于传统跟踪微分器的工作原理,设计三轴转台输出信号跟踪的基本结构,分析其在输入信号存在噪声时,由于经过传统的跟踪微分器获取微分信号使得噪声强度放大,致使跟踪信号存在振荡的现象。在此基础上,提出一种将微分跟踪器产生的微分信号再串联一个跟踪微分器的相位超前补偿器设计方法,以滤除由于输入信号噪声引起的信号污染,进而消除输出信号的振荡问题。以某导弹半实物仿真系统三轴转台输出信号存在相位延迟和噪声的现象为算例,通过与超前校正方法对比研究,进行了系统仿真验证。仿真结果表明,改进相位超前补偿器能有效地提取姿态角速度信号,具有良好的滤波和相位超前补偿性能,进而证明了其在导弹半实物仿真试验应用的正确性和有效性。In order to inhibit the influence of the output signals of three-axis simulator exhibited the phase delays and noise on the performance of missile's hardware-in-loop simulation system,a modified tracking differentiator which was used to filter and phase advance was analyzed and designed.Based on the principle of traditional tracking differentiator,the basic structure of tracking the output signals of three-axis simulator was designed.Due to the differential signal obtained from the tracking differentiator trembles existed noise,the vibration phenomenon of the output signals was analyzed.On this basis,a design method that the differential signal cascaded another tracking differentiator was proposed to filter the signal pollution and output signals noise.Finally,as the examples of one missile5s hardware-in-loop simulation system which were the output signals of three-axis simulator exhibited the phase delays and noise,the performance of the system was verified by comparing with the lead correction method.Simulation results show that the attitude angular velocity can be extracted by the modified phase advancer efficiently,and the modified phase advancer possesses excellent filter and phase advanced performance,which prove the correctness and validity of the modified phase advancer in the hardware-in-loop simulation system for missile.

关 键 词：跟踪微分器 三轴转台 半实物仿真 相位延迟和噪声 相位超前补偿器 

分 类 号：TJ761.6[兵器科学与技术—武器系统与运用工程] V412.4[航空宇航科学与技术—航空宇航推进理论与工程]