| 非均匀天线组阵SUMPLE合成相位补偿及信号强度估计 |
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| 引用本文： | 孔德庆,施浒立. 非均匀天线组阵SUMPLE合成相位补偿及信号强度估计[J]. 电波科学学报, 2009, 24(4) |
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| 作者姓名： | 孔德庆 施浒立 |
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| 作者单位： | 1. 中国科学院国家天文台,北京,100012
2. 中国科学院国家天文台,北京,100012;中国科学院研究生院,北京,100039 |
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| 基金项目： | 中国科学院国家天文台青年人才基金 |
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| 摘 要： | SUMPLE相关算法是深空网天线组阵中信号合成最重要的方法之一.在对SUMPLE相关算法分析的基础上,将均匀天线阵SUMPLE相位漂移补偿方法推广到了非均匀天线阵.根据权值系数的计算方法,提出一种非均匀阵各天线信号强度的估计算法.理论分析与仿真结果表明,所推导的相位补偿方法能有效消除非均匀阵合成信号的相位漂移问题;所提出的天线信号强度估计方法具有较高的估计精度.进行补偿相位估计时,应对权值系数进行低通或卡尔曼滤波,以降低权值系数的随机噪声.
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| 关 键 词： | 天线组阵 SUMPLE相关 相位漂移补偿 非均匀阵 |
Phase wandering correction and signal intensity estimation of SUMPLE algorithm for non-uniform antenna arraying |
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| KONG De-qing,SHI Hu-li. Phase wandering correction and signal intensity estimation of SUMPLE algorithm for non-uniform antenna arraying[J]. Chinese Journal of Radio Science, 2009, 24(4) |
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| Authors: | KONG De-qing SHI Hu-li |
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| Affiliation: | KONG De-qing1 SHI Hu-li1,2 (1.National Astronomical Observatory,Chinese Academy of Sciences,Beijing 100012,China,2.Graduate School,Beijing 100039,China) |
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| Abstract: | SUMPLE is one of the most important array coherence techniques in deep space network.The method of phase wandering correction of SUMPLE algorithm is generalized to non-uniform antenna arraying.The method of antenna signal intensity estimation of non-uniform antenna arraying is presented,based on the weights calculation of SUMPLE algorithm.Theoretical analysis and simulation results show that the phase wandering can be effectively corrected by the estimation of phase deviations,and high precision can be gott... |
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| Keywords: | antenna arraying SUMPLE algorithm phase wandering correction non-uniform antenna arraying |
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