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真实的ＴＩＤ一类大尺度电离层扰动是非平稳和色散的，而且是统计非单一的．本文首先给出了描述这种真实扰动场的数学模型，进而导出了联系台阵探测可测量与扰动场传播参量的观测方程，在此基础上提出了求解观测方程的时频分析方法．这一台阵探测数据分析的新方法，既能分离出非单一电离层扰动场中各种准单一扰动成分，又能获得准单一扰动成分传播参量随时间的演变和随频率的色散．分析实例表明，本文方法分辨率好，精度高，结果可靠，是适用于ＴＩＤ一类大尺度电离层扰动台阵探测数据分析的有效方法．
The real TID class of large-scale ionospheric disturbances are non-stationary and dispersive, and the statistics are not uniform. In this paper, firstly, the mathematical model describing the real perturbation field is given, and then the observational equations associated with measurable and perturbed field propagation parameters of the array detection are deduced. Based on this, a time-frequency analysis method for solving the observation equations is proposed. The new method of array detection data analysis can not only separate the quasi-single disturbance components in the non-single ionospheric disturbance field, but also obtain the evolution of the quasi-single disturbance component propagation parameters with time and the dispersion with frequency. The analysis shows that the proposed method has the advantages of good resolution, high precision and reliable results. It is an effective method for the data analysis of a large scale ionospheric disturbance TID array.