天线辐射功率的时空分布仿真

在涉及到天线的仿真中，天线辐射功率时空分布的计算和建模是一个关键问题，对仿真结果的逼真度有重要影响。对影响天线辐射功率分布的主要因素进行了分析，认为在现代高科技条件下，执行重要任务的各种天线往往要频繁的发射不同波长的信号，这时天线的最大增益是变化的，在分析和仿真辐射功率分布时应根据不同的发射频率实时求解最大增益。推导了天线发射不同波长信号时的最大增益求懈方法，然后归纳总结了对天线辐射功率的时空分布进行仿真的方法和步骤，并以一个示例来具体说明仿真过程。所论述的方法已应用到某型模拟训练器项目中，实际应用证明可行。

Emulation of Antenna Radiant Power's Time and Space Distribution

Antenna modeling is a critical problem,which affects the emulation fidelity in most cases.In the paper,the main influence factors of antenna radiant power's time and space distribution are analyzed.In modern society,with the development of technology,special system antenna will emit electromagnetic wave of different wavelengths for different usage,and its maximum antenna gain is mutative,so the maximum antenna gain should be calculated according to its different wavelength in calculation and emulation.In this paper,a method for calculating the maximum antenna gain is figured out,then the method and steps of emulation of antenna radiant power's time and space distribution are summarized,and an example is given to show the process of emulation.The method given in this paper has been applied in a radar training simulator,and the result is satisfiactory.