Review on mapping space remote sensor optical system
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摘要:将遥感技术应用到测绘当中是现代地质测绘技术的发展趋势,随着光学载荷分辨率的不断提高,遥感测绘已经成为社会发展和国民经济发展的重要保障。光学载荷决定了测绘空间遥感器的分辨率、测绘精度、卫星平台体积与重量,是遥感器的核心部分。本文对高成像质量透射光学系统、同轴三反光学系统、离轴三反系统等常用的空间遥感测绘光学系统的结构形式和光学性能分别进行了介绍,并对处于研发阶段的新型空间反射光学系统的结构形式和光学性能进行了展望。分析认为,根据不同的应用环境和技术指标,合理选用不同种类的遥感测绘光学系统,可以最大程度利用平台资源,满足遥感测绘需求。Abstract:The application of remote sensing technology to the mapping is the development trend of modern geological mapping technology. With the increasing resolution of optical load, mapping remote sensor has become an important guarantee for social development and the development of the national economy. Optical load which is the core component of remote sensor determines the resolution of mapping space remote sensor, the precision of mapping, and the volume and weight of the satellite platform. Structure and optical properties of the mapping space remote sensor optical system are introduced, such as high image quality refractive system, co-axial three mirrors system and off-axial three mirrors system. Then, structure and optical properties of new space reflective optical system in development are prospected. Analysis result indicates that according to different application environment and technical index, different types of optical system should be selected reasonably, so the platform resources can be used fully to meet the demand of mapping remote sensor.
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Key words:
- mapping remote sensor/
- optical system design/
- MTF/
- relative distortion
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图 5亚对称型透射光学系统相对畸变曲线
Figure 5.Relative distortion curves of sub-symmetry transmissive optical system
图 6视场离轴型同轴三反系统结构
Figure 6.Co-axial three mirrors system structure with fields off-axis
图 7非视场离轴型同轴三反系统结构
Figure 7.Co-axial three mirrors system structure without fields off-axis
图 8视场离轴型同轴三反系统传递函数曲线
Figure 8.MTF curves of co-axial three mirrors system with fields off-axis
图 9非视场离轴型同轴三反系统传递函数曲线
Figure 9.MTF curves of co-axial three mirrors system without fields off-axis
图 10视场离轴型同轴三反系统相对畸变曲线
Figure 10.Relative distortion curve of co-axial three mirrors system with fields off-axis
图 11非视场离轴型同轴三反系统相对畸变曲线
Figure 11.Relative distortion curve of co-axial three mirrors system without fields off-axis
图 16Rug型离轴三反系统相对畸变曲线
Figure 16.Relative distortion curve of Rug off-axial three mirrors system
图 17Cook型离轴三反系统相对畸变曲线
Figure 17.Relative distortion curve of Cook off-axial three mirrors system
图 18自由曲面同轴三反系统传递函数曲线
Figure 18.MTF curves of free-form surface co-axial three mirrors system
图 19自由曲面同轴三反系统相对畸变曲线
Figure 19.Relative distortion curve of free-form surface co-axial three mirrors system
图 20大视场同轴四反光学系统结构
Figure 20.Large field co-axial four mirrors optical system structure
图 21大视场同轴四反光学系统传递函数曲线
Figure 21.MTF curves of large field co-axial four mirrors optical system
图 22大视场同轴四反光学系统相对畸变曲线
Figure 22.Relative distortion curve of large field co-axial four mirrors optical system
图 23超大视场离轴四反光学系统结构
Figure 23.Ultra-large field off-axial four mirrors optical system structure
图 24超大视场离轴四反光学系统传递函数曲线
Figure 24.MTF curve of ultra-large field off-axial four mirrors optical system
图 25超大视场离轴四反光学系统相对畸变曲线
Figure 25.Relative distortion curve of ultra-large field off-axial four mirrors optical system
表 1两种同轴三反系统光学性能的比较
Table 1.Performance comparison of two coaxial three-mirror optical systems
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