Castellví Jordi, Camps Adriano, Corbera Jordi, Alamús Ramon
Teoria del Senyal i Comunicació (TSC), Universitat Politècnica de Catalunya (UPC), 08034 Barcelona, Spain.
Institut Cartogràfic i Geològic de Catalunya (ICGC), Parc de Montjuïc, 08038 Barcelona, Spain.
Sensors (Basel). 2018 Jan 6;18(1):140. doi: 10.3390/s18010140.
The ³Cat-3/MOTS (3: Cube, Cat: Catalunya, 3: 3rd CubeSat mission/Missió Observació Terra Satèl·lit) mission is a joint initiative between the Institut Cartogràfic i Geològic de Catalunya (ICGC) and the Universitat Politècnica de Catalunya-BarcelonaTech (UPC) to foster innovative Earth Observation (EO) techniques based on data fusion of Global Navigation Satellite Systems Reflectometry (GNSS-R) and optical payloads. It is based on a 6U CubeSat platform, roughly a 10 cm × 20 cm × 30 cm parallelepiped. Since 2012, there has been a fast growing trend to use small satellites, especially nanosatellites, and in particular those following the CubeSat form factor. Small satellites possess intrinsic advantages over larger platforms in terms of cost, flexibility, and scalability, and may also enable constellations, trains, federations, or fractionated satellites or payloads based on a large number of individual satellites at an affordable cost. This work summarizes the mission analysis of ³Cat-3/MOTS, including its payload results, power budget (PB), thermal budget (TB), and data budget (DB). This mission analysis is addressed to transform EO data into territorial climate variables (soil moisture and land cover change) at the best possible achievable spatio-temporal resolution.
³Cat-3/MOTS（3：立方体，Cat：加泰罗尼亚，3：第三次立方体卫星任务/地球观测卫星任务）任务是加泰罗尼亚制图与地质研究所（ICGC）和加泰罗尼亚理工大学 - 巴塞罗那科技大学（UPC）之间的一项联合倡议，旨在基于全球导航卫星系统反射测量（GNSS-R）和光学有效载荷的数据融合，促进创新的地球观测（EO）技术。它基于一个6U立方体卫星平台，大致是一个10厘米×20厘米×30厘米的平行六面体。自2012年以来，使用小型卫星，特别是纳米卫星，尤其是那些采用立方体卫星外形尺寸的卫星的趋势迅速增长。小型卫星在成本、灵活性和可扩展性方面比大型平台具有内在优势，并且还可以以可承受的成本实现基于大量单个卫星的星座、编队、联合体或分块卫星或有效载荷。这项工作总结了³Cat-3/MOTS的任务分析，包括其有效载荷结果、功率预算（PB）、热预算（TB）和数据预算（DB）。此任务分析旨在以尽可能高的时空分辨率将EO数据转换为区域气候变量（土壤湿度和土地覆盖变化）。
