An additional velocity loop in the CCD and MEMS accelerometer-based lightweight optoelectronic system control

doi:10.1117/12.2327069

CORC > 光电技术研究所 > 中国科学院光电技术研究所 > 光电工程总体研究室（一室）

	An additional velocity loop in the CCD and MEMS accelerometer-based lightweight optoelectronic system control
	Luo, Yong 1,2,3; Deng, Chao 1,2,3; Huang, Yongmei 1,2; Mao, Yao 1,2; Wu, Qiongyan 1,2
	2018
会议日期	SEP 12-13, 2018SEP 12-13, 2018
会议地点	Berlin, GERMANYBerlin, GERMANY
关键词	optoelectronic system disturbance suppression ability line-of-sight stabilization sensors fusion the open-loop bandwidth fusion
卷号	10787
DOI	10.1117/12.2327069
页码	107870U
英文摘要	In the charge-coupled device(CCD)-based optoelectronic system(OS), the external disturbance has a bad influence on the line-of-sight(LOS) stabilization, especially in a moving platform. Generally, with a high-performance fiber-optic gyroscope(FOG), we build a velocity inner loop to enhance the disturbance suppression ability(DSA). However, FOG has a big size, high cost and power consumption which limit its application in space-constrained occasion. With the development of the micro-electro-mechanical system(MEMS) industry, the MEMS accelerometer and gyro are more used in the optoelectronic field for their small volume and low price. Since the MEMS accelerometer has a much higher bandwidth than the MEMS gyro, it's more suitable to build a high-bandwidth and high-sampling inner loop to enhance the DSA. Unfortunately, since the signal of the MEMS accelerometer in low frequency is weak and commonly with drift and much noise, the low-frequency DSA of the inner loop is insufficient. Considering the CCD has a good low-frequency signal and the MEMS accelerometer has an advantage in high frequency, based on the acceleration and position double-loop control(APDC), we proposed to add an additional velocity loop by fusing the CCD's low-frequency signal and the accelerometer's high-frequency signal with an open-loop bandwidth fusion method(OBF) to further enhance the DSA. The fusion velocity even has a higher bandwidth than the MEMS gyro. A series of comparative experimental results demonstrate the proposed method could get a lightweight OS with a strong DSA, which is close to the triple loop control based on the MEMS accelerometer and real gyro, and even has a better DSA in medium frequency.
会议录	Proceedings of SPIE - ENVIRONMENTAL EFFECTS ON LIGHT PROPAGATION AND ADAPTIVE SYSTEMS
文献子类	C
语种	英语
ISSN号	0277-786X
WOS记录号	WOS:000453907800025
内容类型	会议论文
源URL	[http://ir.ioe.ac.cn/handle/181551/9134]
专题	光电技术研究所_光电工程总体研究室（一室）
通讯作者	Mao, Yao
作者单位	1.Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu; 610209, China; 2.Institute of Optics and Electronics, Chinese Academy of Science, Chengdu; 610209, China; 3.University of Chinese Academy of Science, Beijing; 100039, China
推荐引用方式 GB/T 7714	Luo, Yong,Deng, Chao,Huang, Yongmei,et al. An additional velocity loop in the CCD and MEMS accelerometer-based lightweight optoelectronic system control[C]. 见:. Berlin, GERMANYBerlin, GERMANY. SEP 12-13, 2018SEP 12-13, 2018.