| Nowadays,optical communication technology has become an emerging science that changes human science's cognition along with computer and optoelectronic technology.The research of beacon light has been widely involved in various fields,and it is one of the important ways to obtain information of current optical communication technology.It also has far-reaching significance to the theoretical and application research of beacon light technology.This paper first introduces the design scheme of dynamic transmission of beacon light and analyzes the relevant parameters of the communication link subsystem.The target tracking technology is combined with the beacon light multi-attitude acquisition technology to obtain spatial beacon attitude information.The two-dimensional PSD photoelectric position sensor is used to measure the three-dimensional attitude carried by the beacon light with the orthogonal beacon light as a carrier,and obtain the relevant information such as the orientation,roll angle,and pitch.According to the point light source and the incident light spot,the two-dimensional PSD electrode current position output and potential field are simulated.The main work of the entire paper is:(1)Detailed analysis of light capture,tracking,and targeting(ATP)system structure,dynamic transmission scheme,and communication mode.According to the relevant theoretical derivation and tracking system design,the theoretical analysis and test results are consistent,and the practical value is strong.Under the condition of a certain transmitted optical power,the tightness between the accuracy of ATP tracking and the communication performance is obtained through experiments.(2)After the transfer mechanism of the base coordinate-depth analysis of the beacon light,photoelectric effect 2D PSD lateral position sensor based on theoretical analysis and simulation models were used in the three-dimensional measurement in its attitude.It can be(3)seen from the gradient direction distribution of the electric potential field that the two-dimensional position sensor detects the centroid of the light spot.Centroid same intensity,if the spot diameter changes,2D PSD in the range of the measurement region is not affected.(4)This paper proposes and designs a spatial target detection system that integrates the spatial target brightness,spectrum and polarization detection functions.Using this system to simultaneously extract multi-parameter features of the beacon light transmission process,and provide multi-dimensional information for spatial target recognition The source solves the problems of difficult multi-parameter extraction,low extraction efficiency,and high recognition error rate in space detection.(5)The host computer software was designed based on Lab VIEW,and real-time online detection was performed to simulate the tracking system.Analyze the performance indicators of the sensor,simulate the beacon light for optical path experiments and three-dimensional attitude decoupling experiments.The experimental measurement shows that the 2D PSD displacement resolution accuracy reaches 2 ?m in the working area;between 0 ? 90 °,the polarization base sagittal angle is within one Changed four times during the period,the measurement accuracy of the polarization angle is less than 3 °.When the polarization azimuth is around 45 °,the angle measurement accuracy of polarization measurement is better than 0.1 °,and the measurement accuracy meets the requirements,which verifies the feasibility of the measurement scheme. |
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