中国科学院机构知识库网格系统: 检索

Tracking control Scheme for photoelectric tracking platform with predictor-structure ESO 会议论文 OAI收割
Virtual, Chongqing, China, 2021-07-09
作者: Wang, Fan; Wang, Ranjun; Xie, Meilin; Liu, Peng; Jing, Feng

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收藏 | 浏览/下载：29/0 | 提交时间：2022/02/10

photoelectric tracking platform (PTP) active disturbance rejection control (ADRC) input-delay system predictor-structure extended state observer (PESO)

Research on the Comprehensive Processing Method of Measurement Information Based on Multi-Source Sensor 会议论文 OAI收割
Chongqing, China, 2020-06-12
作者: Meilin, Xie; Cao, Yu; Wei, Hao; Wei, Huang; Xuezheng, Lian

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收藏 | 浏览/下载：25/0 | 提交时间：2021/03/04

Photoelectric Pod Matching Correction Adaptive Optimal Estimation Tracking Accuracy

Analysis of the Subdivision Errors of Photoelectric Angle Encoders and Improvement of the Tracking Precision of a Telescope Control System 期刊论文 OAI收割
SENSORS, 2018, 卷号: 18, 期号: 9, 页码: 2998
作者: Yu, Jiawei; Wang, Qiang; Zhou, Guozhong; He, Dong; Xia, Yunxia

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收藏 | 浏览/下载：62/0 | 提交时间：2019/08/23

telescope control systems photoelectric angle encoders tracking precision subdivision errors amplitude error real-time compensation

Error Analysis and Experiments of Attitude Measurement using Laser Gyroscope 会议论文 OAI收割
Shanghai, PEOPLES R CHINAShanghai, PEOPLES R CHINA, NOV 24-26, 2017NOV 24-26, 2017
作者: Ren, Xin-Ran; Ma, Wen-Li; Jiang, Ping; Huang, Jin-Long; Pan, Nian

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收藏 | 浏览/下载：31/0 | 提交时间：2019/08/23

laser gyro attitude measurement error analysis photoelectric tracking and measuring equipment

A vertex tracking technique based on airborne opticalequipment (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Electronics and Optoelectronics, ICEOE 2011, July 29, 2011 - July 31, 2011, Dalian, China
Li Q.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

After analyzing the advantages and disadvantages of photoelectric tracking system withhorizontal gimbal and X-Y double-axis gimbal a vertex tracking method based on airborne photoelectricequipmenthas been presented. The method which combines advantages of horizontal gimbal and X-Y double-axis gimbal can effectively track target in the blind area. experiments show that the tracking method is simple tracking accuracy is 3 meet the technical requirements. 2011 IEEE.

The stability design and realization of airborne platform based on TMS320F2812 (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Mechatronic Science, Electric Engineering and Computer, MEC 2011, August 19, 2011 - August 22, 2011, Jilin, China
作者: Zhang X.; Zhang X.; Zhang X.

收藏 | 浏览/下载：48/0 | 提交时间：2013/03/25

Airborne electro-optical stable platform can isolate movement and vibration of the airframe stabilizes the optic axis of the photoelectic detector realize the observation and tracking for the object. It has comprehensive application value in army and cicil field. Most of present airborne platforms are analogic control system digital control system can improve the system general performance digital control is the development direction of platform systems. In view of the requirements of isolating disturbances and stabilizing optical axis of high-precision photoelectric guidance system a three-axis stabilized platform system centering on the rate gyro was designed. The disturbance-isolation theory of the stabilized platform was analyzed and the control structure including multiple closed-loops was designed. At last a controller of the servo system based on TMS320F2812 DSP has been designed. Experiment results meet the technical index and precision requirement and illustrate the practicability and effectiveness of the scheme. 2011 IEEE.

Application of multi-sensors parallel fusion system in photoelectric tracing (EI CONFERENCE) 会议论文 OAI收割
2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications, November 16, 2008 - November 19, 2008, Beijing, China
Cheng G.-Y.; Cai S.; Gao H.-B.; Zhang S.-M.; Qiao Y.-F.

收藏 | 浏览/下载：29/0 | 提交时间：2013/03/25

To solve the real-time and reliability problem of tracking servo-control system in optoelectronic theodolite a multisensors parallel processing system was proposed. Misdistances of three different wavebands were imported into system and then prediction was done in DSP1 to get the actual position information. Data fusion was accomplished in PPGA imported by multi channel buffer serial port. The compound position information was used to control the theodolite. The results were compared with external guide data in DSP2 to implement correction of above calculation and then were imported to epistemic machine through PXI interface. The simulation experiment of each calculation unit showed that this system could solve the real-time problem of feature level data fusion. The simulation result showed that the system can satisfy the real-time requirement with 1.25ms in theodolite with three imaging systems while sampling frequency of photoelectric encoder was 800 Hz. 2009 SPIE.

Study on bandwidth mutual-benefit between the azimuth and pitch in an optoelectronic tracking system (EI CONFERENCE) 会议论文 OAI收割
MEMS/MOEMS Technologies and Applications III, November 12, 2007 - November 14, 2007, Beijing, China
作者: Guo J.; Guo J.; Chen J.

收藏 | 浏览/下载：18/0 | 提交时间：2013/03/25

Two-axis optoelectronic tracking equipments generally use such mode that azimuth and pitch system are independently controlled. It leads to the two structures completely uncoupled therefore and reduces the state space dimension. But the main problem is that the rotational inertia of azimuth is much larger than that of pitch it is an effective control mode to the two-axis photoelectric tracking equipments. which leads its dynamic tracking performance is worse. So to find a more suitable mechanics and more effective control strategy is necessary. Considering the tracking ability this paper designs BMC (bandwidth mutual compensation) to uniformly correct the error of both the azimuth and pitch system in real time it is realized by cross coupling control to the azimuth and pitch. The simulation result verified that compared with classical uncoupling system BMS not only guarantees the state space dimension but improves systematic tracking performance about 2

空间CCD凝视成像跟踪系统的作用距离分析 期刊论文 OAI收割
中国激光, 2008, 卷号: 35, 期号: 2, 页码: 173, 177
董吉辉; 胡企铨

收藏 | 浏览/下载：1285/181 | 提交时间：2009/09/18

成像系统 Active tracking 光电跟踪 Gaze imaging tracking 凝视成像跟踪 Passive tracking 主动跟踪 Photoelectric tracking 被动跟踪 Speckle effect 散斑效应

Design and DSP implementation of star image acquisition and Star point fast acquiring tracking (EI CONFERENCE) 会议论文 OAI收割
2nd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 2, 2005 - November 5, 2005, Zian, China
作者: Wang X.; Wang X.; Wang X.

收藏 | 浏览/下载：31/0 | 提交时间：2013/03/25

Star sensor is a special high accuracy photoelectric sensor. Attitude acquisition time is an important function index of star sensor. In this paper the design target is to acquire 10 samples per second dynamic performance. On the basis of analyzing CCD signals timing and star image processing a new design and a special parallel architecture for improving star image processing are presented in this paper. In the design the operation moving the data in expanded windows including the star to the on-chip memory of DSP is arranged in the invalid period of CCD frame signal. During the CCD saving the star image to memory DSP processes the data in the on-chip memory. This parallelism greatly improves the efficiency of processing. The scheme proposed here results in enormous savings of memory normally required. In the scheme DSP HOLD mode and CPLD technology are used to make a shared memory between CCD and DSP. The efficiency of processing is discussed in numerical tests. Only in 3.5ms is acquired the five lightest stars in the star acquisition stage. In 43us the data in five expanded windows including stars are moved into the internal memory of DSP and in 1.6ms five star coordinates are achieved in the star tracking stage.