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本文首先阐述了机载TCAS的基本功能,据此提炼出了机载TCAS的地面激励需求,包括模拟入侵飞机距离、高度和方位。其中对入侵飞机方位的模拟既是一个重点也是一个难点。由于目前机载TCAS测量入侵飞机方位的方法有两种,一种是幅度法,一种是相位法,所以本文对这两种方法的原理做了深入细致的研究,得出了实现地面方位激励的方法。通过建立天线模型,仿真计算出了两种激励所需的数据。
In this paper, the basic functions of airborne TCAS are first described. Based on this, the ground motivation requirements of airborne TCAS are extracted, including the simulation of the distance, altitude and azimuth of the invading aircraft. Among them, the simulation of the intruding aircraft’s position is not only a focal point but also a difficult one. Because there are two methods to measure the azimuth of aircraft invaded by airborne TCAS at present, one is the amplitude method and the other is the phase method. Therefore, the principles of these two methods are studied deeply and concisely, Methods. By establishing the antenna model, the data required for the two kinds of stimuli are calculated by simulation.