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引用本文：

王倩,王祖林,何善宝,等.动态星间链路分析及其STK/Matlab实现[J].电讯技术，2010，50（9）： - . [点击复制]
WANG Qian,WANG Zu-lin,HE Shan-bao,et al.Dynamic Inter satellite Link Analysis and its STK/Matlab Implementation[J].，2010，50（9）： - . [点击复制]

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动态星间链路分析及其STK/Matlab实现
王倩,王祖林,何善宝,郭旭静
0 字体:加大+\|默认\|缩小-
(北京航空航天大学电子信息工程学院，北京 100191;中国空间技术研究院，北京 1 00094)

摘要:

为了动态分析星间链路，提出了一种用来精确计算星间链路的距离“交点”模型，利用该模型可以使星间链路距离的误差仅为米级。在此基础上建立多普勒频移和链路预算动态分析模型，并以STK(Satellite Tool Kit)/Matlab接口实现。最后以24/3/2构型Walker星座为例仿真，得到多普勒频移及其变化率、载温比、门限余量等系统设计所必需的多组参数。

关键词: 星座星间链路 STK/Matlab接口链路预算多普勒频移

DOI：

基金项目:

Dynamic Inter satellite Link Analysis and its STK/Matlab Implementation

WANG Qian,WANG Zu-lin,HE Shan-bao,GUO Xu-jing

(School of Electronic & Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191,China;China Academy of Space Technology, Beijing 100094,China)

Abstract:

In order to analyse intersatellite links(ISLs) dynamically, Intersect ion model, an accurate distance calculation method of ISL is presented .The comp utation error is only at meter level. Based on the above method, the model of Do ppler shift and link budget dynamic analysis is constructed and realized by the STK (Satellite Tool Kit)/Matlab interface. The dynamic simulation is performed b y taking the 24/3/2 Walker constellation for instance. The parameters can be obt ained such as Doppler shift, Doppler shift changing rate, carrier-to-temperature ratio and threshold cushion,all of which are necessary for the inter-satellite links communication system design.

Key words: constellation inter satellite link(ISL) STK/Matlab interface link budget Dop pler shift