一种基于载波相位测量的阵列天线自适应校正技术
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中国电子科技集团公司第五十四研究所 卫星导航系统与装备技术国家重点实验室,河北 石家庄 050081

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TN973.3

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An adaptive correction technique of array antenna based on carrier phase measurement
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The 54th Research Institute of China Electronics Technology Group Corporation State Key Laboratory of Satellite Navigation System and Equipment Technology,Shijiazhuang 050081, China

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    摘要:

    针对卫星导航阵列抗干扰处理过程中的阵列校正问题,本文采用一种基于载波相位测量的阵列天线自适应校正技术。利用阵列天线各阵元分别接收同一颗卫星信号,分别进行捕获、跟踪、观测量提取等,获取指定卫星各通道载波相位,求取载波相位差,计算各通道间误差,对阵列天线幅相不一致性进行校正,从而降低幅相不一致性对抗干扰算法性能的影响。相比于传统阵列天线自适应校正算法,具有以下优点:1)可针对每颗卫星进行单独校正;2)可综合校正射频通道不一致性、天线阵子安装误差、AD采样不一致性造成的通道相位不一致;3)可实时对卫星来向的通道误差进行校正。仿真证明,该方法具备较好的幅相误差抑制效果。

    Abstract:

    Aiming at the problem of array correction in the anti-interference processing of satellite navigation array, an array antenna adaptive correction technology based on carrier phase measurement is adopted in this paper. Each array element of the array antenna is used to receive the same satellite signal, capture, track, observe and extract the carrier phase of each channel of the specified satellite, calculate the carrier phase difference, calculate the error between each channel, and correct the amplitude and phase inconsistency of the array antenna, so as to reduce the impact of amplitude and phase inconsistency on the performance of anti-jamming algorithm. Compared with the traditional array antenna adaptive correction algorithm, it has the following advantages: 1) it can be corrected separately for each satellite; 2) It can comprehensively correct the channel phase inconsistency caused by RF channel inconsistency, antenna array installation error and AD sampling inconsistency; 3) The channel error of the satellite can be corrected in real time. Simulation results show that this method has good amplitude and phase error suppression effect.

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赵 军,苏润佳.一种基于载波相位测量的阵列天线自适应校正技术[J].电子测量技术,2022,45(15):84-89

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  • 在线发布日期: 2024-04-08
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