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重庆邮电大学超视距可信信息传输研究所,重庆 400065
[ "李国军(1978- ),男,四川资阳人,博士,重庆邮电大学教授、超视距可信信息传输研究所所长、博士生导师,主要研究方向为复杂恶劣环境超视距无线通信与网络。" ]
[ "郑广发(1996- ),男,四川达州人,重庆邮电大学硕士生,主要研究方向为短波无线通信。" ]
[ "叶昌荣(1989- ),男,重庆人,博士,重庆邮电大学讲师,主要研究方向为无线通信、信号融合检测与处理。" ]
[ "周银萍(1996- ),女,重庆人,重庆邮电大学硕士生,主要研究方向为无线传感器网络及信息处理。" ]
网络出版日期:2021-01,
纸质出版日期:2021-01-25
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李国军, 郑广发, 叶昌荣, 等. 基于稳健卡尔曼滤波的倾斜探测电离层MUF短期预报方法[J]. 通信学报, 2021,42(1):79-86.
Guojun LI, Guangfa ZHENG, Changrong YE, et al. Short-term prediction method of oblique sounding ionosphere MUF based on robust Kalman filter[J]. Journal on communications, 2021, 42(1): 79-86.
李国军, 郑广发, 叶昌荣, 等. 基于稳健卡尔曼滤波的倾斜探测电离层MUF短期预报方法[J]. 通信学报, 2021,42(1):79-86. DOI: 10.11959/j.issn.1000-436x.2021011.
Guojun LI, Guangfa ZHENG, Changrong YE, et al. Short-term prediction method of oblique sounding ionosphere MUF based on robust Kalman filter[J]. Journal on communications, 2021, 42(1): 79-86. DOI: 10.11959/j.issn.1000-436x.2021011.
为了改善电离层频率预报准确性低、短波通信连通率差以及工程中观测野值对预报精度影响严重等问题,提出一种基于稳健卡尔曼滤波的倾斜探测电离层MUF短期预报方法。通过研究实测MUF数据的变化规律及观测误差的成因与特征,利用电离层参考模型作为先验信息,改进卡尔曼滤波模型的状态估计方程;引入代价函数机制,通过Huber-M估计实现对预报状态的量测更新,减少观测野值对预报结果的影响,提高所提方法的稳健性。仿真结果表明,所提方法能有效抑制观测野值带来的不利影响,具有较强的稳健性和稳定性。
To improve the low accuracy of ionospheric frequency forecasting
poor HF communication connectivity
and the severe impact of observational outliers in engineering on forecast accuracy
a short-term prediction method for oblique detection ionospheric MUF based on robust Kalman filtering was proposed.By studying the variation law of the measured MUF data and the causes as well as characteristics of observation errors
and exploiting the ionospheric reference model as a priori information
the state estimation equation of the Kalman filter model was improved.The cost function mechanism was introduced to realize the measurement update of the forecast state through Huber-M estimation
which reduced the influence of the observation outliers on the forecast results and improves the robustness of the proposed method.The simulation results show that the proposed method can effectively suppress the adverse effects caused by the observation outliers and has good robustness and stability.
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