雷达模拟训练器中接收机噪声显示仿真实现

摘要

It was difficult to display the radar receiver noise realistically in radar simulated trainer .The engender principle and characteristic of radar receiver noise were analyzed .According to the method of changing uniformly distributed pseudorandom num ‐bers to normally distributed pseudorandom numbers ,the calculation step of engender normally distributed pseudorandom numbers was put forward .And the simulated model of radar receiver noise was built based on normally distributed pseudorandom numbers . The display function of radar simulated trainer was actualized and the display was right .The result of simulation indicated that the simulated model was feasible ,and increased the display fidelity of radar simulated trainer effectively .%研究雷达模拟训练器材功能仿真中雷达显示问题，针对在雷达模拟训练器中难以逼真显示雷达接收机噪声的问题，通过分析雷达接收机噪声的产生原理和特点，根据均匀分布随机数列转换成正态分布随机数列的方法，给出了生成正态伪随机数列的计算步骤。在此基础上建立了基于正态分布随机数列的雷达接收机噪声仿真模型，实现了雷达模拟器显示功能仿真，显示结果正确。仿真结果表明所建立的模型具有很强的可行性，有效地提高了雷达模拟训练器的显示逼真度。