作者:孙永全，钱湘伟，方晓彤，梁乐，齐佳
Authors:SUNYongquan, QIANXiangwei, FANGXiaotong, LIANGLe, QIJia摘要: 电磁环境下数据链通信设备可靠性是无线通信与电子对抗领域研究的热点与难点,将临界“ 失锁” 时的最大通信距离作为设备可靠性评价指标,通过干扰信号注入的方式模拟不同干扰信号强度和干扰频率下数据链最小接收工作信号强度,据此采用 Friis 传输模型计算不同电磁干扰条件下数据链通信设备的最大通信距离,利用对数正态分布拟合电磁干扰下的最大通信距离统计分布,并基于多元回归的方法估计分布参数随干扰频率与干扰强度的变化规律,构建了基于退化量分布的数据链通信设备可靠性模型。 最后,通过数值例验证本方法的有效性,研究成果可为作战任务中的通信装备配置,通信成功率预测和战场态势评估提供理论参考。
Abstract: The reliability of data-link communication equipment in electromagnetic environment is a hot and difficult research topic in wireless communication and electronic countermeasures field. The maximum communication distance when the equipment “ lost-link” was taken as the reliability evaluation index of the data-link equipment, and the minimum received working signal intensity of data-link under different interference conditions was simulated through electromagnetic interference injection test. Therefore, the Friis transmission model was used to calculate the maximum communication distance of data-link communication equipment under different electromagnetic interference conditions. The lognormal distribution was used to fit the statistical distribution of the maximum communication distance under electromagnetic interference. The variation rule of distribution parameters with interference frequency and intensity was estimated based on multiple regression method, and the reliability model of data-link communication equipment based on degradation quantity distribution was constructed. Finally, the effectiveness of the proposed method is verified by a numerical example. The research results can provide theoretical reference for communication equipment configuration, communication success rate prediction and battlefield situation assessment in combat missions.

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