基于Vega Prime的光电经纬仪CCD图像仿真系统
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摘要
针对靶场经纬仪设备操作手实战经验少、训练成本高的问题,设计并实现了基于Vega Prime的光电经纬仪电荷耦合传感器(Charge Coupled Device,CCD)图像仿真系统。对任务弹道数据进行了分析,建立了地心直角坐标系与仿真系统坐标系之间的转换关系,获得了目标在仿真场景中的理论位置,并通过解算得到了姿态数据。根据CCD传感器的光学系统参数,计算了仿真图像的理论视场角。实践结果表明,该仿真系统从目标仿真和视场仿真两方面渲染图像,可确保目标的轨迹与姿态更符合真实任务的情况。对操作手进行了针对性训练,使其熟悉了任务流程,从而提高了训练效率。
Since the operators of a certain photoelectric theodolite lack of actual operation experience and have high training cost,a Charge Coupled Device(CCD) image simulation system for the photoelectric theodolite based on Vega Prime is designed and realized.After analyzing the trajectory data of a mission,the conversion relationship between the geocentric coordinate and the simulation coordinate is established.The theoretical position of a target in the simulated scene is obtained.The attitude data of the target are calculated.The theoretical field-of-view angle of the simulated image is calculated according to the parameters of the optical system for the CCD sensor.The experimental results show that because the simulation system renders images both by target simulation and by field-of-view simulation,it can assure the trajectory and attitude of the target to be more consistent with the real mission.The operators of the photoelectric theodolite are trained.Their understanding of the operation flow is enhanced.The training efficiency is improved.
Since the operators of a certain photoelectric theodolite lack of actual operation experience and have high training cost,a Charge Coupled Device(CCD) image simulation system for the photoelectric theodolite based on Vega Prime is designed and realized.After analyzing the trajectory data of a mission,the conversion relationship between the geocentric coordinate and the simulation coordinate is established.The theoretical position of a target in the simulated scene is obtained.The attitude data of the target are calculated.The theoretical field-of-view angle of the simulated image is calculated according to the parameters of the optical system for the CCD sensor.The experimental results show that because the simulation system renders images both by target simulation and by field-of-view simulation,it can assure the trajectory and attitude of the target to be more consistent with the real mission.The operators of the photoelectric theodolite are trained.Their understanding of the operation flow is enhanced.The training efficiency is improved.
引文
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[2]徐恩,李学军,邹红霞,等.基于Creator/VP的三维虚拟环境建模[J].系统仿真学报,2009,21(S1):121-123.
[3]李正炜,王建立,王斌.光电跟踪设备视景仿真系统设计[J].电脑知识与技术,2016,12(Z1):181-183.
[4]于正林,谭微,姜涛.基于视景仿真的光电经纬仪模拟训练器[J].吉林大学学报(工),2011,41(2):509-513.
[5]王孝平,董秀成,郑海春,等.Vega Prime实时三维虚拟现实开发技术[M].成都:西南交通大学出版社,2012.
[6]张乐,韩佳盈,张蛟.MFC框架下的Vega Prime三维视景程序开发技术[J].火力与指挥控制,2014,39(3):159-162.
[7]李亚臣,胡健,黎远忠,等.基于Vega Prime的航天器视景仿真中的多坐标系问题[J].系统仿真学报,2007,19(3):575-578.
[8]李延兴,张静华,张俊青,等.一种由地心直角坐标到大地坐标的直接转换[J].大地测量与地球动力学,2007,27(4):37-42.
[9]党亚民,成英燕,薛树强.大地坐标系统及其应用[M].北京:测绘出版社,2010.