中国区域SPOT7原始遥感影像数据集

2014 年 6 月 30 日，法国斯波特 -7（SPOT-7）卫星从印度达万航天发射中心，用印度极轨运载火箭（PSLV）成功发射。SPOT-7 由欧洲空客防务与航天公司研制，其性能指标与 SPOT-6 相同。SPOT-7 轨道高度 694km，发射质量 712kg。SPOT-7 采用 Astrosat 500MK2 平台，具备很强的姿态机动能力，可在 14s 内侧摆 30°。SPOT-7 全色分辨率 1.5m，多光谱分辨率 6m，星上载有两台称为“新型 Astrosat 平台光学模块化设备”（NAOMI）的空间相机，两台相机的总幅宽为 60km。SPOT-6和 SPOT-7 这两颗卫星每天的图像获取能力达到600 万平方千米，面积大于欧盟成员国的总面积。这两颗卫星预计将工作到 2024 年。根据用户需求可对 SPOT-7 进行灵活编程，具备每天 6 个编程计划。SPOT-7 具备多种成像模式，包括长条带、大区域、多点目标、双图立体和三图立体等，适于制作 1:25000 比例尺的地图。SPOT-6 和 SPOT-7 与两颗昴宿星（Pleiades 1A和 1B）组成四星星座，这四颗卫星同处一个轨道平面，彼此之间相隔 90°。该星座具备每日两次的重访能力，由 SPOT 卫星提供大幅宽普查图像，Pleiades 针对特定目标区域提供 0.5m 的详查图像。

On June 30, 2014, the French SPOT-7 satellite was successfully launched from India's Satish Dhawan Space Centre using the Indian Polar Satellite Launch Vehicle (PSLV). Developed by Airbus Defence and Space, SPOT-7 has identical performance specifications to SPOT-6. It has an orbital altitude of 694 km and a launch mass of 712 kg. Adopting the Astrosat 500MK2 platform, SPOT-7 features strong attitude maneuverability, capable of swinging 30° within 14 seconds. SPOT-7 has a panchromatic resolution of 1.5 m and a multispectral resolution of 6 m, and carries two space cameras named "New Astrosat Platform Optical Modular Instrument" (NAOMI), with a combined swath width of 60 km. The daily image acquisition capacity of SPOT-6 and SPOT-7 reaches 6 million square kilometers, an area larger than the total area of all European Union member states. The two satellites are expected to operate until 2024. SPOT-7 supports flexible programming based on user requirements, with up to 6 programming plans per day. It supports multiple imaging modes including long strip, large-area, multi-point target, dual-image stereo and triple-image stereo, making it suitable for cartography at a scale of 1:25000. SPOT-6, SPOT-7 and the two Pleiades satellites (Pleiades 1A and 1B) form a four-satellite constellation, with all four satellites located in the same orbital plane and spaced 90° apart from each other. This constellation has a revisit capability of twice per day: the SPOT satellites provide large-swath survey images, while the Pleiades satellites offer 0.5 m resolution detailed images for specific target areas.

搜集汇总

背景与挑战

背景概述

该数据集包含中国区域的SPOT7原始遥感影像，具有1.5m全色和6m多光谱分辨率，幅宽达60km，支持多种成像模式，适用于1:25000比例尺地图制作。SPOT7与Pleiades卫星组成星座，提供每日两次重访能力，满足大范围普查和高分辨率详查需求。