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Optimizing number of spots and cluster size of a high-throughput communication satellite payload
International Journal of Satellite Communications and Networking ( IF 1.7 ) Pub Date : 2021-06-09 , DOI: 10.1002/sat.1414
Elham Sharifi‐Moghaddam 1 , Arash Ahmadi 1
Affiliation  

In this paper, the number of spots and cluster size of a high-throughput satellite (HTS) is optimized by minimizing the satellite mass in the conceptual design phase. An innovative procedure for deriving the total mass of the payload and relevant power supply subsystem as a function of the number of spots and cluster size is presented. For estimating the size and electrical power consumption, the general block diagram of an HTS payload is planned. A direct radiating phased array as the multiple-beam antenna is used, and its synthesis technique is described briefly. Accordingly, the number of subarrays and elements in each subarray as functions of the number of spots are derived in the presence of orthogonal beams while neglecting the grating lobes. A block diagram for the new generation HTS payloads with digital signal processors for beam forming and data regeneration is presented. The procedure for determining the number of spots and cluster size is extended to the new generation very HTSs with 100 s Gbps link capacity. Conceptual design examples of HTSs with microwave beam forming network and transparent transponder in C-band, Ka-band, and for very HTSs with digital beam forming network and regenerative transponder in Ka-band are provided.

中文翻译:

优化高吞吐量通信卫星有效载荷的点数和簇大小

在本文中,通过在概念设计阶段最小化卫星质量来优化高通量卫星(HTS)的点数和簇大小。提出了一种创新的程序,用于根据点的数量和集群大小来推导有效载荷和相关电源子系统的总质量。为了估计尺寸和电力消耗,规划了 HTS 有效载荷的一般框图。采用直接辐射相控阵作为多波束天线,简要介绍了其合成技术。因此,子阵列和每个子阵列中元件的数量作为光斑数量的函数是在存在正交光束的情况下推导出来的,而忽略了栅瓣。介绍了带有用于波束形成和数据再生的数字信号处理器的新一代 HTS 有效载荷的框图。确定点数和簇大小的程序扩展到具有 100 s Gbps 链路容量的新一代超 HTS。提供了带有微波波束形成网络和 C 波段、Ka 波段透明转发器的 HTS 的概念设计示例,以及带有数字波束形成网络和 Ka 波段再生转发器的 HTS 的概念设计示例。
更新日期:2021-06-09
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