NAOC Open IR
高动态环境下扩频信号快捕的多普勒消除研究
张志富; 裴军
2015
Source Publication测绘科学
ISSN1009-2307
Volume40Issue:1Pages:9
Abstract卫星信号往往处于高动态环境下传输,较大的多普勒频偏会增加扩频码捕获时间,甚至导致捕获错误。文中对载波多普勒频偏对匹配滤波器相关峰值的影响进行了分析,根据BPSK直接序列扩频通信系统传输信号的特点,提出了一种基于二阶导数的多普勒消除算法,并给出该算法的推导过程和基于该算法的一种快速捕获方案。仿真结果表明,算法正确,且当信噪比达到-46dB以上时,算法误差将远远小于200Hz。
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/40329
Collection中国科学院国家天文台
Affiliation中国科学院国家天文台
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
张志富,裴军. 高动态环境下扩频信号快捕的多普勒消除研究[J]. 测绘科学,2015,40(1):9.
APA 张志富,&裴军.(2015).高动态环境下扩频信号快捕的多普勒消除研究.测绘科学,40(1),9.
MLA 张志富,et al."高动态环境下扩频信号快捕的多普勒消除研究".测绘科学 40.1(2015):9.
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