China's third satellite was successfully launched from a high resolution observation _ | | high | satellite systems news
Beijing News News (Xinhua Lu Xin Yu Jia Shiyu interns) at 6:55 the morning of August 10, high third satellite successfully launched at the Taiyuan Satellite Launch Centre. Then, scores and previously launched into orbit first, higher compared to the second satellite, high third satellite what's unique?
It is understood that scores have been launched into orbit first satellite, high score second satellite, high score fourth satellite, and the ongoing development of high scores fifth satellite, high sixth satellite, high points, seventh satellite, which all six satellites optical remote sensing satellites provide high-precision optical Earth observation remote sensing data.
High scores third satellite as a phased array radar imaging satellite microwave remote sensing satellites, compared with optical remote sensing satellites is the biggest feature is the all-time, all-weather imaging capability, whether day or night, regardless of clear sky or thunderstorm to cloudy, you can image at any time. This feature is particularly useful in disaster prevention , in the event of earthquakes, landslides, floods and other natural disasters, often associated with poor weather conditions, rapid response and asked to provide first-hand information in the disaster area, at this time, similar scores third microwave imaging satellites play a greater role.
According to statistics, about 70% of disasters such as earthquakes, floods and mud-rock flow, whereas in the past only large overseas satellite microwave remote sensing Imaging may be used to provide high resolution image data, so users in the country are very eager to be a high third satellite functioning as soon as possible. High scores third satellite project user covers the various types of applications, the industry also desperately needed a high score third satellite project to provide continuous and stable high quality of synthetic aperture radar images, instead of the present large imports of foreign satellite data.
So, high points third, satellite engineering of application requirements is: using high points third, satellite highest 1 meters resolution of c band multipolar synthesis aperture radar imaging function, achieved full day clock of marine and land observation, upgrade marine monitored monitoring, and disaster management, and water resources evaluation and meteorological forecast forecast level, and improve agricultural, and land, and environmental, and Guoan, and live built, and traffic, and forestry, and earthquake and mapping, industry of survey and monitoring capacity, enhanced burst event fast response capacity, China Civil independent high resolution, multi-polarization synthetic aperture radar remote sensing data gaps.
High score third satellite project consists of six systems, in addition to satellite systems, including launch vehicle systems, measuring and control systems, launch systems, ground systems and application systems, including satellite systems and rocket system developed by China Aerospace Science and Technology Corporation is responsible for.
High score its third satellite technology index has exceeded the level of international satellite. Such as imaging modes, star design 12 kinds of imaging modes, to meet the needs of various users different tasks; image quality, satellite offers a maximum 1 m resolution images, but also offers 10 m quantity level and the level meter resolution image. In addition, the third satellite is China's first low-orbit remote sensing satellite of the 8-year life design, you can provide users with a more long term observational data to further enhance the effectiveness of the entire satellite system.
Responsible editor: Zhang Xiaoya
Article keywords:Satellite systems
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中国高分辨率三号卫星发射成功 可全天候观测|卫星|高分|系统_新闻资讯
新京报快讯(记者贾世煜 实习生卢心语)8月10日晨6时55分，高分三号卫星在太原卫星发射中心成功发射。那么，与此前发射入轨的高分一号、高分二号等卫星相比，高分三号卫星有何独特之处?
据了解，已经发射入轨的高分一号卫星、高分二号卫星、高分四号卫星，和正在研制的高分五号卫星、高分六号卫星、高分七号卫星，这六颗卫星全部是光学遥感卫星，提供高精度光学对地观测遥感数据。
高分三号卫星作为相控阵雷达成像卫星微波遥感卫星，与光学遥感卫星相比最大的特点就是可以全天时、全天候的成像能力，不管白天或黑夜，也不管晴空或雷雨多云，都可以随时对地成像。这种特点尤其适合于减灾防灾的应用，在出现地震、滑坡、洪涝等自然灾害时，往往伴随恶劣的气象条件，并且要求快速响应提供灾区第一手图像信息，这个时候，类似高分三号的微波成像卫星往往发挥更大的作用。
据统计，中国约70%的灾害是地震、洪涝和泥石流等，而以往中国仅能使用大量的国外微波遥感成像卫星提供的高分辨率图像数据，所以国内的用户都非常迫切希望高分三号卫星尽早发挥作用。高分三号卫星工程的用户涵盖了国内各类应用部门，各行业也迫切需要高分三号卫星工程提供的高质量连续稳定的合成孔径雷达图像，以替代目前大量进口的国外卫星数据。
因此，高分三号卫星工程的应用要求是：利用高分三号卫星最高1米分辨率的C频段多极化合成孔径雷达成像功能，实现全天时全天候的海洋与陆地观测，提升海洋监视监测、灾害管理、水资源评价和气象预测预报水平，并提高农业、国土、环保、国安、住建、交通、林业、地震和测绘等行业的调查与监测能力，增强突发事件快速响应能力，填补中国民用自主高分辨率多极化合成孔径雷达遥感数据空白。
高分三号卫星工程包括六大系统，除卫星系统外，还包括运载火箭系统、测控系统、发射场系统、地面系统和应用系统，其中卫星系统和运载火箭系统由中国航天科技集团公司负责研制。
高分三号卫星其综合技术指标已超出国际同类卫星水平。比如成像模式，整星设计了12种成像模式，可满足各类用户不同的任务需求;成像质量，整星最高提供1米分辨率图像，同时也可提供10米量级和百米量级分辨率图像。此外，高分三号卫星还是中国首颗8年长寿命设计的低轨遥感卫星，可以为用户提供更长时间的观测数据，进一步提升整个卫星系统的效能。
责任编辑：张小雅
文章关键词： 卫星 高分 系统
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