Research on Decoupling Algorithm of Strapdown Seeker Based on Tracking Differentiator
LI Qingbo， FANG Zeyuan， CHEN Guoliang， MEI Zhiwei， YANG Ting
Shanghai Electro-Mechanical Engineering Institute， Shanghai 201109， China
Abstract In this paper, the tracking differentiator is used to extract LOS angular rate of strapdown seeker. Firstly, the mathematical mechanism of extracting LOS angular rate of strapdown seeker by tracking differentiator is described. Then, a method of fast obtaining the frequency-domain characteristics of tracking differentiator by using the rotating equivalent force is proposed. Based on the frequency-domain characteristics, the parameter design and performance analysis of two typical tracking differentiators are carried out. Finally, based on the above design results, modeling simulation and calculation analysis are carried out to verify the LOS angular rate decoupling effect of tracking differentiator.
Key words ：
tracking differentiator
strapdown
seeker
LOS angular rate
decoupling
Received: 27 September 2021
Published: 24 December 2021
[1]
CHEN Jing, KE Shitang, LI Wenjie, ZHU Tingrui, YUN Yiwen, REN Hehe. Unsteady Evolution Law and Evaluation Index of Shallow Sea Wind-Wave-Current-Seabed Coupling Field
[2]
WEI Guangyu, GU Chaochen, YANG Shusheng, GUAN Xinping. Decoupling and Synchronization Control of Asymmetric Flexure-Linked Dual-Drive Gantry Stage
[3]
TAO Haijun, DU Changshun, ZHANG Jinsheng, ZHENG Zheng. Generating Mechanism and Suppression of Impulse Voltage on Secondary Bus of Marine Electromagnetic Transmitter
[4]
LI Yanbiao∗ (李研彪), CHEN Ke (陈 科), SUN Peng (孙 鹏), WANG Zesheng (王泽胜). Dynamic Modeling and Performance Evaluation of a Novel Humanoid Ankle Joint
[5]
LIANG Liang1 (梁 良), SHI Ying1∗ (石 英), MOU Junmin2∗ (牟军敏). Submarine Multi-Model Switching Control Under
Full Working Condition Based on Machine Learning
[6]
LI Han, ZHANG Botao, WANG Junjie, SUN Yunda, GONG Shengjie. Decoupling of Vibration and Temperature Signals of Fiber Bragg Grating Sensor
[7]
WAN Hui, QI Xiaohui, LI Jie. Linear Matrix Inequality Based Stability Analysis of Linear/Nonlinear Switching Active Disturbance Rejection Control System
[8]
HOU Jue, YAO Dongwei, WU Feng, LÜ Chenglei, WANG Han, SHEN Junhao. Control Strategy for Electric Vehicle Range-Extender Based on Hybrid Excitation Generator
[9]
TONG Pengfei, CHEN Hao, XU Xinpeng, ZHOU Ge. Study on Information Fusion Technology of Multi-missile Multi-target Collaborative Detection
[10]
ＴAO Ｓoｎɡbo, ＬI Ｈaoxing, CHEN Ｘu, GU Cunfeng. Analysis of Air Launched Decoy Influence on Seeker
[11]
LI Donghui,GAO Feng. Improved Smith Predictive Decoupling Control Based on
Disturbance Observer for Compression Refrigeration System
[12]
CHEN Bing, LI Keyong, CHEN Guoliang. High Dynamic Decoupling Method of Strapdown Photoelectric Seeker
[13]
KANG Youwei, WANG Feng, CHEN Dongfang, SHEN Li. Dynamic Modeling and Analysis of Gyro-stabilized Seeker
[14]
JIANG Xiaoming, WANG Xufeng, ZHANG Weifang, LIU Yigang. Coarse-fine Compound Axis Cooperative Control Strategy Optimization for Laser Tracking & Aiming System
[15]
LI Haoxing, ZHANG Di, GAO Deliang, LYU Ruiheng, GU Cunfeng. Multi-target Interference Compensation for Seeker Based on Orthogonal Multicarrier Technique
2021, Vol. 4 
