一种基于信道模拟器的星座动态距离测量精度分析算法的实现  

An Implementation of Algorithm for Inter-Satellite-Link Dynamic Distance Measurement Accuracy Based on SLE

作　　者：萧鑫 尚湘安 乔璐 张美婷 习清伶[1] 

机构地区：[1]中国空间技术研究院西安分院,西安710000

出　　处：《空间电子技术》2017年第6期89-93,共5页Space Electronic Technology

摘　　要：基于利用信道模拟器实现星座动态模拟的仿真手段,针对距离测量精度提出一种全新的分析算法,该算法通过对专门设计的模拟曲线和获得的星上直接测量结果进行联合处理,从算法上提升测量结果的算法精度。在信道高信噪比下,通过选取合适的算法参数,动态距离测量精度能够达到ns量级,减小了测量精度的误差。文中对算法的应用条件、参数作用以及优缺点进行了分析和说明。Based on the using of SLE（ Satellite Link Emulator） to simulate constellation dynamic condition,a new dataprocessing algorithm is presented about the distance measurement accuracy. The core point is combining the specially designsimulator datas and directly measuring results to process together, which can improve the measurement accuracy on algo-rithm. Under a high SNR（ signal- to-noise ratio） of channle and selecting appropriate algorithm parameters, the dynamic dis-tance measurement accuracy of this algorithm can reach nanosecond, and greatly minish the error oThis article has detail analysis and explaination on application conditions, function of ptages for this algorithm.

关 键 词：星座动态 距离测量 信道模拟 分析算法 

分 类 号：V474[航空宇航科学与技术—飞行器设计]