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根据微波着陆系统的技术体制,应用电磁相似理论,建立机场的缩比模型,利用激光在缩比模型下的传播来模拟微波载波在实际机场场地环境下的辐射情况,采用MATLAB/RTW的快速原型化目标-xPC目标的方法,建立整个模拟试验系统,进行机载接收信号处理的实时仿真。以美国某机场环境为原型,得到了其缩比模型下的飞行检验的方位角误差曲线,试验结果与机场实际飞行检验结果吻合较好,证明了微波着陆系统激光模拟试验的有效性。
According to the technical system of microwave landing system, the electromagnetic reduction theory is used to establish the airport contraction ratio model. The radiation of laser carrier in the contraction ratio model is simulated to simulate the radiation of the microwave carrier in the actual airport environment. The rapid prototyping of MATLAB / RTW Target-xPC goal of the method to establish the entire simulation test system for on-board receiving signal processing real-time simulation. Taking an airport environment in the United States as a prototype, the azimuth error curve of the flight test under its reduced ratio model is obtained. The test results are in good agreement with the actual flight test results of the airport. The results show that the laser landing simulation test is effective.