Line of Sight and Image Motion Compensation for Step and Stare Imaging System
| Autor: | Li Youyi, Li Jun, Huang Pu, Jihong Xiu, Hongwen Zhang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Computer science
02 engineering and technology Gimbal lcsh:Technology 01 natural sciences Compensation (engineering) lcsh:Chemistry 010309 optics Optical path Control flow 0103 physical sciences step and stare fast steering mirror (FSM) General Materials Science Computer vision lcsh:QH301-705.5 Instrumentation line of sight (LOS) Search and rescue Fluid Flow and Transfer Processes Motion compensation Line-of-sight lcsh:T business.industry Process Chemistry and Technology General Engineering 021001 nanoscience & nanotechnology lcsh:QC1-999 Computer Science Applications motion compensation lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 Control system Artificial intelligence lcsh:Engineering (General). Civil engineering (General) 0210 nano-technology business lcsh:Physics gimbal |
| Zdroj: | Applied Sciences Volume 10 Issue 20 Applied Sciences, Vol 10, Iss 7119, p 7119 (2020) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app10207119 |
| Popis: | In recent years, applications such as marine search and rescue, border patrol, etc. require electro-optical equipment to have both high resolution and precise geographic positioning abilities. The step and stare working based on a composite control system is a preferred solution. This paper proposed a step and stare system composed of two single-axis fast steering mirrors and a two-axis gimbal. The fast steering mirrors (FSMs) realize image motion compensation and the gimbal completes pointing control. The working principle and the working mode of the system are described first. According to the imaging optical path, the algorithm and control flow of the line of sight (LOS) and image motion compensation are developed. The proposed method is verified through ground imaging and flight tests. Under the condition of flight, the pointing accuracy of the target can be controlled within 15 m. The proposed algorithm can achieve effective motion compensation and get high-resolution images. This achieves high resolution and accurate LOS simultaneously. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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