Article(id=1315743896232112213, tenantId=1146029695717560320, journalId=1315121910733963395, issueId=1315743733992243595, articleNumber=null, orderNo=null, doi=10.3788/gzxb20265501.0122001, pmid=null, cstr=32255.14.gzxb20265501.0122001, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1751904000000, receivedDateStr=2025-07-08, revisedDate=null, revisedDateStr=null, acceptedDate=1756915200000, acceptedDateStr=2025-09-04, onlineDate=1791627390200, onlineDateStr=2026-10-10, pubDate=1769270400000, pubDateStr=2026-01-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791627390200, onlineIssueDateStr=2026-10-10, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791627390200, creator=13701087609, updateTime=1791627390200, updator=13701087609, issue=Issue{id=1315743733992243595, tenantId=1146029695717560320, journalId=1315121910733963395, year='2026', volume='55', issue='1', pageStart='1', pageEnd='316', issueExtLink='null', onlineDate='null', pubDate='1769270400000', pubDateStr='2026-01-25', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791627351520, creator='13701087609', updateTime=1791627555456, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1315744589420540350, tenantId=1146029695717560320, journalId=1315121910733963395, issueId=1315743733992243595, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1315744589420540351, tenantId=1146029695717560320, journalId=1315121910733963395, issueId=1315743733992243595, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=272, endPage=286, ext={EN=ArticleExt(id=1315743896508936278, articleId=1315743896232112213, tenantId=1146029695717560320, journalId=1315121910733963395, language=EN, title=Optical Remote Sensing Satellite-borne Integrated Miniaturized Design and Verification, columnId=1315743623623332133, journalTitle=Acta Photonica Sinica, columnName=Optical Design and Fabrication, runingTitle=null, highlight=null, articleAbstract=
This study tackles the key challenges in designing integrated, lightweight, and high-resolution remote sensing satellites, with a focus on miniaturization, structural stability, and thermal control. Its primary objective is to propose and validate a novel satellite-borne integrated scheme that incorporates an optical camera, a laser communication terminal, and star trackers onto a unified platform. The design aims to achieve sub-meter resolution imaging and high-speed laser data transmission while maintaining high optical axis stability and thermal performance under complex on-orbit conditions.
A holistic, multi-disciplinary design and optimization approach was adopted. The imaging payload centers on an improved Cassegrain system. A key innovation is the square primary mirror (190 mm× 190 mm), providing an equivalent circular aperture of 215 mm. This design increases the photon collection area by approximately 27% within the same envelope compared to a conventional circular mirror, directly enhancing the signal-to-noise ratio. Coupled with a 3.2 µm pixel pitch detector and a 1 300 mm focal length, the system is designed to deliver better than 1-meter ground sampling distance from a 400 km orbit. For the laser communication terminal, a reflective off-axis afocal beam expander was developed. This system features multiplexed optical paths, allowing the transmit, receive, fine tracking, and self-calibration subsystems to share key components such as the fast steering mirror and beam expander optics. This integration drastically reduces the terminal's volume, resulting in a compact assembly with a 60 mm effective aperture capable of supporting a 4× beam expansion ratio for high-rate data transmission. Structurally, the integration cornerstone is a Z-shaped precision base made of aluminum-based silicon carbide (SiC/Al). This material was selected for its superior specific stiffness and high thermal conductivity, which are critical for maintaining dimensional stability under thermal and mechanical loads. All core payloads such as the optical camera, laser terminal telescope, and star sensor are mounted on this unified reference structure, which not only ensures inherent alignment stability among the payloads but also simplifies the system architecture. To counteract the detrimental effects of temperature fluctuations on optical alignment and image quality, a sophisticated “active compensation + passive isolation” thermal management strategy was implemented. The active system employs a network of five distributed heaters on the Z-base, governed by a discrete Proportional-Integral (PI) control algorithm with finely tuned parameters (proportional gain=0.8, integral gain=0.05), maintaining the base temperature within 20±0.5 ℃. Passive measures include applying high-conductivity graphene films to critical structures like the camera truss to homogenize temperature gradients and using L-shaped thermal isolation brackets to decouple sensitive optical paths from external thermal disturbances. We established a rigorous analytical framework to guide and validate the design. This involved developing linear mathematical models for multi-payload line-of-sight stability and system wavefront aberration, which directly link mechanical and thermal deformations to optical performance metrics. These models feed into a coupled optical-mechanical-thermal multi-disciplinary analysis and optimization workflow. This integrated simulation platform enables the iterative assessment and refinement of system performance under a comprehensive set of environments, including ground gravity-thermal coupling and extreme on-orbit thermal cases spanning the satellite's full orbital beta angle range. The final design underwent extensive verification through thermal balance testing in a space environment simulator and thermal-optical MTF testing, culminating in on-orbit performance evaluation after launch.
The proposed integrated design demonstrates significant improvements in compactness, stability, and performance. The optical system has a total length of 330 mm with an equivalent aperture of 215 mm, enabling sub-meter resolution. The laser terminal beam expander has a 60 mm effective aperture, supporting 4× beam expansion/reduction for data transmission up to 10 Gbps. The Z-shaped SiC/Al base ensures high structural rigidity. Under a coupled gravity and 4 ℃ thermal load, the maximum optical axis deviation between payloads is ≤3.24″, and mirror displacements are ≤5 µm with tilts ≤5″. The system wavefront error remains ≤0.06λ (RMS, λ=632.8 nm). In extreme on-orbit thermal cases, the peak-to-peak optical axis variation is ≤6.77″. The thermal control system maintains the camera and base within 19.5~20.5 ℃, with gradients <1 ℃ and stability ≤±0.3 ℃. Thermal balance and thermal-optical tests confirm that the MTF remains >0.1 under controlled conditions. On-orbit validation shows that the satellite maintains a dynamic MTF >0.08 at the Nyquist frequency (156 lp/mm) after one year in orbit, with no significant degradation. High-resolution panchromatic images have been successfully downlinked via the laser terminal, confirming stable imaging and data transmission performance.
In conclusion, this work successfully develops and validates a highly integrated, miniaturized satellite design that effectively combines high-resolution optical imaging and high-speed laser communication within a compact 42 kg platform. The innovative use of a common Z-shaped precision base, advanced thermal management, and multi-disciplinary optimization results in a system with superior structural stability, thermal precision, and optical performance compared to existing designs. The integration scheme not only reduces volume and mass but also enhances payload synergy, as demonstrated by using the optical camera for coarse tracking in the laser communication link. The proposed approach provides a feasible and efficient technical pathway for future lightweight, high-performance multi-payload remote sensing satellites, balancing rigorous performance requirements with stringent size and mass constraints.
, authors=Yanwei PEI
1, Xiangyu ZHAO
1, 2, Shanbo CHEN
1, Jianchao WANG
1, Lu DAI
1, Shubo WEI
1, authorsList=Yanwei PEI, Xiangyu ZHAO, Shanbo CHEN, Jianchao WANG, Lu DAI, Shubo WEI, authorCompany=null, correspAuthors=Xiangyu ZHAO, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1315743900799709297, articleId=1315743896232112213, tenantId=1146029695717560320, journalId=1315121910733963395, language=CN, title=光学遥感星载一体化小型化设计与验证, columnId=1315743623807881511, journalTitle=光子学报, columnName=光学设计与制造, runingTitle=null, highlight=null, articleAbstract=
针对小型轻质高分辨率卫星多载荷集成研制需求,开展星载一体小型化、集成化设计。首先,光学系统采用改进型卡塞格林系统,主镜方形设计提升光通量,结合小像元实现亚米级分辨率,激光终端采用反射式离轴无焦扩束系统实现扩束发射接收,光路复用设计,缩小光学系统包络;结构设计采用Z型铝基碳化硅精密基台作为主承力结构,实现光学相机、激光终端与星敏感器高精度共基准集成,并以相机脱靶量驱动卫星平台执行粗跟踪;控温设计采用主动热补偿结合被动热隔离,实现温度梯度<1 ℃、稳定性≤±0.3 ℃的高精度控制。其次,建立光轴指向和波前像差线性模型多维度评价体系,通过光-机-热多学科联合优化提升系统稳定性,重力-温度耦合下光轴夹角变化≤3.24″,在轨极端工况峰-峰值≤6.77″,系统波前像差均方根≤0.06 λ。最后,经热试验及在轨影像验证,多载荷星载集成设计在复杂环境下稳定性良好,在轨长期动态传函优于0.08,满足设计要求,为高分辨率多载荷集成设计提供了新的技术路径。
, authors=裴彦伟
1, 赵相禹
1, 2, 陈善搏
1, 王建超
1, 戴路
1, 韦树波
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1Chang Guang Satellite Technology Co., Ltd., Changchun 130102, China), AuthorCompanyExt(id=1315743901063950452, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, companyId=1315743901047173234, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1长光卫星技术股份有限公司,长春 130102)]), AuthorCompany(id=1315743901135253621, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, xref=2, ext=[AuthorCompanyExt(id=1315743901147836534, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, companyId=1315743901135253621, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2Tsinghua University, Department of Precision Instruments, Beijing 100084, China), AuthorCompanyExt(id=1315743901156225143, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, companyId=1315743901135253621, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2清华大学 精密仪器系,北京 100084)])], figs=[ArticleFig(id=1315743904977236129, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Fig.1, caption=
Ray paths in the optical camera, figureFileSmall=JpuTNJPBkRy/J/eB2KadHA==, figureFileBig=sHRyhy7LPv11bTeTftSp+g==, tableContent=null), ArticleFig(id=1315743905044344994, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=图1, caption=
光学相机系统光线, figureFileSmall=JpuTNJPBkRy/J/eB2KadHA==, figureFileBig=sHRyhy7LPv11bTeTftSp+g==, tableContent=null), ArticleFig(id=1315743905220505763, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Fig.2, caption=
Optical system design for laser terminals, figureFileSmall=W2rZvYjQOqP0ZhwE7MXgBA==, figureFileBig=ZekQ3Am/kYnLMZpIAs13Jw==, tableContent=null), ArticleFig(id=1315743905279226020, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=图2, caption=
激光终端光学系统设计, figureFileSmall=W2rZvYjQOqP0ZhwE7MXgBA==, figureFileBig=ZekQ3Am/kYnLMZpIAs13Jw==, tableContent=null), ArticleFig(id=1315743905346334885, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Fig.3, caption=
The working principle of integrated payload, figureFileSmall=AyzEWYCe2E1TkDvPzXvV/A==, figureFileBig=J8W45Md13fjk4TpKVUH7Gg==, tableContent=null), ArticleFig(id=1315743905434415270, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=图3, caption=
一体化载荷工作原理, figureFileSmall=AyzEWYCe2E1TkDvPzXvV/A==, figureFileBig=J8W45Md13fjk4TpKVUH7Gg==, tableContent=null), ArticleFig(id=1315743905493135527, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Fig.4, caption=
The platform of integrated satellite, figureFileSmall=nQslBHNJa/+VGBH0ePHdQA==, figureFileBig=e0UvcdMqpakewoy8xdRvzw==, tableContent=null), ArticleFig(id=1315743905564438696, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=图4, caption=
一体化卫星平台, figureFileSmall=nQslBHNJa/+VGBH0ePHdQA==, figureFileBig=e0UvcdMqpakewoy8xdRvzw==, tableContent=null), ArticleFig(id=1315743905623158953, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Fig.5, caption=
Design of Z-shaped precision base, figureFileSmall=bG/Uu09JATdyaDbc7uIgIw==, figureFileBig=V3MJ2bemyg3IGaiWygErKg==, tableContent=null), ArticleFig(id=1315743905686073514, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=图5, caption=
Z型精密基台设计, figureFileSmall=bG/Uu09JATdyaDbc7uIgIw==, figureFileBig=V3MJ2bemyg3IGaiWygErKg==, tableContent=null), ArticleFig(id=1315743905748988075, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Fig.6, caption=
Temperature control design for Z-shaped precision base, figureFileSmall=5dvWQAhWywOeYXhdlCHUrQ==, figureFileBig=9QGM69FeJ2rfNvPtzHPXsA==, tableContent=null), ArticleFig(id=1315743905807708332, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=图6, caption=
Z型精密基台控温设计, figureFileSmall=5dvWQAhWywOeYXhdlCHUrQ==, figureFileBig=9QGM69FeJ2rfNvPtzHPXsA==, tableContent=null), ArticleFig(id=1315743905870622893, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Fig.7, caption=
Technical approach for integrated simulation, design, and analysis, figureFileSmall=oH/NB7gYpbOaWmG4xpXsDA==, figureFileBig=kqDf5C7r8hFhuzlHiSUYbA==, tableContent=null), ArticleFig(id=1315743905937731758, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=图7, caption=
一体化集成仿真设计与分析技术路径, figureFileSmall=oH/NB7gYpbOaWmG4xpXsDA==, figureFileBig=kqDf5C7r8hFhuzlHiSUYbA==, tableContent=null), ArticleFig(id=1315743906000646319, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Fig.8, caption=
Thermal balance Test, figureFileSmall=FIqz7gn+KJVQxrodA+zA+w==, figureFileBig=p3BVOQ4mi4V8gV0pok8NCg==, tableContent=null), ArticleFig(id=1315743906071949488, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=图8, caption=
热平衡试验系统, figureFileSmall=FIqz7gn+KJVQxrodA+zA+w==, figureFileBig=p3BVOQ4mi4V8gV0pok8NCg==, tableContent=null), ArticleFig(id=1315743906139058353, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Fig.9, caption=
The temperature data curve of thermal balance test. (a) Temperature of optical camera in cold case; (b) Temperature of optical camera in hot case; (c) Temperature of Z-shaped platform in cold case; (d) Temperature of Z-shaped platform in hot case, figureFileSmall=Lzlf882SN2Wn/qoXTS/nWQ==, figureFileBig=ce7EFyfmnJNXNUrlM4ooPg==, tableContent=null), ArticleFig(id=1315743906197778610, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=图9, caption=
热平衡试验温度数据曲线。(a) 相机低温工况;(b) 相机高温工况;(c) Z型基台低温工况;(d) Z型基台高温工况, figureFileSmall=Lzlf882SN2Wn/qoXTS/nWQ==, figureFileBig=ce7EFyfmnJNXNUrlM4ooPg==, tableContent=null), ArticleFig(id=1315743906290053299, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Fig.10, caption=
Satellite thermal-optical test site, figureFileSmall=LKEE+P0gSbfhyyE9uyLa9Q==, figureFileBig=s9S8wquesziumQH3x3R1kw==, tableContent=null), ArticleFig(id=1315743906352967860, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=图10, caption=
卫星热光学试验现场, figureFileSmall=LKEE+P0gSbfhyyE9uyLa9Q==, figureFileBig=s9S8wquesziumQH3x3R1kw==, tableContent=null), ArticleFig(id=1315743906445242549, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Fig.11, caption=
MTF vs. truss temperature under different conditions, figureFileSmall=eLzK2hVeCDvjp+/RK6PoAw==, figureFileBig=EOTBOutjjTVM8XIwv7ps3Q==, tableContent=null), ArticleFig(id=1315743906516545718, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=图11, caption=
各工况MTF桁架与控温曲线, figureFileSmall=eLzK2hVeCDvjp+/RK6PoAw==, figureFileBig=EOTBOutjjTVM8XIwv7ps3Q==, tableContent=null), ArticleFig(id=1315743906617209015, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Fig.12, caption=
MTF test site at Baotou target field, figureFileSmall=VuiEHVzhIQmTiEGrioGmaw==, figureFileBig=fCLytwWRP05MsKaxVIJLPg==, tableContent=null), ArticleFig(id=1315743906675929272, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=图12, caption=
包头靶场MTF测试场地, figureFileSmall=VuiEHVzhIQmTiEGrioGmaw==, figureFileBig=fCLytwWRP05MsKaxVIJLPg==, tableContent=null), ArticleFig(id=1315743906747232441, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Fig.13, caption=
Measured dynamic MTF curve, figureFileSmall=kq5V4qWRIpA0YZ/TJ3rB9g==, figureFileBig=cTwUJibhGS1byxErf8mz+w==, tableContent=null), ArticleFig(id=1315743906801758394, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=图13, caption=
实测动态 MTF 测试曲线, figureFileSmall=kq5V4qWRIpA0YZ/TJ3rB9g==, figureFileBig=cTwUJibhGS1byxErf8mz+w==, tableContent=null), ArticleFig(id=1315743906864672955, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Table 1, caption=
Dynamic MTF distribution budget
, figureFileSmall=null, figureFileBig=null, tableContent=
| Component | MTFstatic | MTFatmospher | MTFstraylight | MTFmotion | MTFdefocus | MTFvibration |
|---|
| Allocated value | 0.15 | 0.87 | 0.97 | 0.98 | 0.93 | 0.94 |
), ArticleFig(id=1315743906956947644, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=表1, caption=
动态传函分配
, figureFileSmall=null, figureFileBig=null, tableContent=
| Component | MTFstatic | MTFatmospher | MTFstraylight | MTFmotion | MTFdefocus | MTFvibration |
|---|
| Allocated value | 0.15 | 0.87 | 0.97 | 0.98 | 0.93 | 0.94 |
), ArticleFig(id=1315743907045028029, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Table 2, caption=
Comparison of key material properties for optical support structures
, figureFileSmall=null, figureFileBig=null, tableContent=
| Material | Coefficient of thermal expansion/(×10-6/℃) | Thermal conductivity/(W/m·K) | Specific stiffness/(GPa·cm3/g) |
|---|
| SiC/Al | 7.2 | 200 | 62.5 |
| TC4 | 8.6 | 20 | 24.4 |
| Invar | 1.2 | 10 | 20 |
), ArticleFig(id=1315743907103748286, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=表2, caption=
光学支撑结构主要材料性能参数对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| Material | Coefficient of thermal expansion/(×10-6/℃) | Thermal conductivity/(W/m·K) | Specific stiffness/(GPa·cm3/g) |
|---|
| SiC/Al | 7.2 | 200 | 62.5 |
| TC4 | 8.6 | 20 | 24.4 |
| Invar | 1.2 | 10 | 20 |
), ArticleFig(id=1315743907179245759, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Table 3, caption=
Comparative design parameters of similar satellites
, figureFileSmall=null, figureFileBig=null, tableContent=
| Parameter | Proposed | SkySat-1 | Global-1 | Jinlin1-GF03 |
|---|
| Envelope dimensions /mm | 505×300×500 | 600×600×800 | 550×600×800 | 460×610×800 |
| Mass/kg | 42 | 83 | 55 | 45 |
| Functional density ratio/% | 70 | 60 (estimated) | 50 (estimated) | ~60 |
| Temperature-control precision/℃ | ±0.3 | ±1.2 ℃ | ±1 ℃ | ±0.3 |
Optical-axis stability/(″) (gravity & thermal coupling) | ≤5 | ≈6.5 | ≈8 | ≈5 |
| Laser communication integrated | Yes | - | - | - |
), ArticleFig(id=1315743907258937536, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=表3, caption=
同类卫星设计指标对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| Parameter | Proposed | SkySat-1 | Global-1 | Jinlin1-GF03 |
|---|
| Envelope dimensions /mm | 505×300×500 | 600×600×800 | 550×600×800 | 460×610×800 |
| Mass/kg | 42 | 83 | 55 | 45 |
| Functional density ratio/% | 70 | 60 (estimated) | 50 (estimated) | ~60 |
| Temperature-control precision/℃ | ±0.3 | ±1.2 ℃ | ±1 ℃ | ±0.3 |
Optical-axis stability/(″) (gravity & thermal coupling) | ≤5 | ≈6.5 | ≈8 | ≈5 |
| Laser communication integrated | Yes | - | - | - |
), ArticleFig(id=1315743907330240705, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Table 4, caption=
Analysis results of the mirror surface shape of optical camera
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| Components | Gravity | Gravity &thermal |
|---|
| Secondary mirror | Title (X, Y)/(″) | (-3.99, 2.94) | (-4.50, 3.31) |
| Eccentricity (X, Y)/μm | (4.65, -1.6) | (4.93, -2.64) |
| Correcting mirror | Title (X, Y)/(″) | (-2.01, 1.02) | (-2.12, 1.15) |
| Eccentricity (X, Y)/μm | (2.97, -0.16) | (3.15, -0.23) |
| Primary mirror surface figure/nm | PV RMS | 4.98 | 8.61 |
| 1.75 | 2.87 |
| System wavefront aberration/nm | PV | 0.14λ | 0.36λ |
| RMS | 0.05λ | 0.06λ |
), ArticleFig(id=1315743908974407874, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=表4, caption=
光学相机反射镜面形分析结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| Components | Gravity | Gravity &thermal |
|---|
| Secondary mirror | Title (X, Y)/(″) | (-3.99, 2.94) | (-4.50, 3.31) |
| Eccentricity (X, Y)/μm | (4.65, -1.6) | (4.93, -2.64) |
| Correcting mirror | Title (X, Y)/(″) | (-2.01, 1.02) | (-2.12, 1.15) |
| Eccentricity (X, Y)/μm | (2.97, -0.16) | (3.15, -0.23) |
| Primary mirror surface figure/nm | PV RMS | 4.98 | 8.61 |
| 1.75 | 2.87 |
| System wavefront aberration/nm | PV | 0.14λ | 0.36λ |
| RMS | 0.05λ | 0.06λ |
), ArticleFig(id=1315743909062488259, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Table 5, caption=
The variation of optical axis angle between laser/star-sensor and optical camera
, figureFileSmall=null, figureFileBig=null, tableContent=
| Components | X (yaw)/(″) | Y (pitch)/(″) |
|---|
| Apr/(″) | 1.47 | 3.20 |
| Ap1/(″) | 3.24 | -0.27 |
| Ap2/(″) | -1.43 | -2.37 |
), ArticleFig(id=1315743909125402820, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=表5, caption=
激光/星敏光轴相对于相机光轴夹角的变化量
, figureFileSmall=null, figureFileBig=null, tableContent=
| Components | X (yaw)/(″) | Y (pitch)/(″) |
|---|
| Apr/(″) | 1.47 | 3.20 |
| Ap1/(″) | 3.24 | -0.27 |
| Ap2/(″) | -1.43 | -2.37 |
), ArticleFig(id=1315743909188317381, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Table 6, caption=
The extreme values and peak-to-peak values of the optical axis angle on orbit
, figureFileSmall=null, figureFileBig=null, tableContent=
| Parameter | Aps | Apr | Ap1 | Ap2 | Ap3 | A12 | A23 | A13 |
|---|
| Maximum | 1.23 | 2.65 | 3.68 | 4.25 | 5.28 | 4.45 | 5.77 | 8.29 |
| Minimum | 0.14 | -1.23 | -3.09 | -1.45 | 1.03 | 0.36 | -0.49 | -0.65 |
| Peak-to-peak | 1.09 | 3.88 | 6.77 | 5.7 | 4.25 | 4.09 | 6.26 | 8.94 |
), ArticleFig(id=1315743909280592070, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=表6, caption=
在轨全周期光轴夹角极值及峰-峰值
, figureFileSmall=null, figureFileBig=null, tableContent=
| Parameter | Aps | Apr | Ap1 | Ap2 | Ap3 | A12 | A23 | A13 |
|---|
| Maximum | 1.23 | 2.65 | 3.68 | 4.25 | 5.28 | 4.45 | 5.77 | 8.29 |
| Minimum | 0.14 | -1.23 | -3.09 | -1.45 | 1.03 | 0.36 | -0.49 | -0.65 |
| Peak-to-peak | 1.09 | 3.88 | 6.77 | 5.7 | 4.25 | 4.09 | 6.26 | 8.94 |
), ArticleFig(id=1315743909343506631, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=EN, label=Table 7, caption=
The temperature results of test and on-orbit flight
, figureFileSmall=null, figureFileBig=null, tableContent=
| Position of temperature measuring | Name of temperature measuring | Cold case during test/℃ | Hot case during test/℃ | Temperature in flight/℃ |
|---|
| Camera | Mirrors of camera | 19.89~20.27 | 19.99~20.30 | 19.98~20.30 |
| Truss of camera | 19.98~20.22 | 19.98~20.22 | 19.98~20.23 |
Z-shaped precision base | Camera mounting surface | 20.09~20.18 | 20.11~20.26 | 20.11~20.32 |
| Laser barrel mounting surface | 20.00~20.16 | 20.00~20.16 | 19.98~20.16 |
| Laser relay optical path | 20.00~20.14 | 20.00~20.16 | 20.00~20.16 |
| +Y star sensor mounting surface | 19.98~20.09 | 19.98~20.16 | 19.98~20.16 |
| -Y star sensor mounting surface | 19.98~20.09 | 19.98~20.18 | 19.98~20.20 |
), ArticleFig(id=1315743909410615496, tenantId=1146029695717560320, journalId=1315121910733963395, articleId=1315743896232112213, language=CN, label=表7, caption=
试验和在轨飞行温度结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| Position of temperature measuring | Name of temperature measuring | Cold case during test/℃ | Hot case during test/℃ | Temperature in flight/℃ |
|---|
| Camera | Mirrors of camera | 19.89~20.27 | 19.99~20.30 | 19.98~20.30 |
| Truss of camera | 19.98~20.22 | 19.98~20.22 | 19.98~20.23 |
Z-shaped precision base | Camera mounting surface | 20.09~20.18 | 20.11~20.26 | 20.11~20.32 |
| Laser barrel mounting surface | 20.00~20.16 | 20.00~20.16 | 19.98~20.16 |
| Laser relay optical path | 20.00~20.14 | 20.00~20.16 | 20.00~20.16 |
| +Y star sensor mounting surface | 19.98~20.09 | 19.98~20.16 | 19.98~20.16 |
| -Y star sensor mounting surface | 19.98~20.09 | 19.98~20.18 | 19.98~20.20 |
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