基于粒子模型的飞机尾流雷达回波仿真  

Radar Echo Simulation of Aircraft Wake Vortex Based on Particle Model

作　　者：李文臣[1] 刘俊凯[1] 王涛[1] 刘忠训[1] 王雪松[1] 

机构地区：[1]国防科技大学电子科学与工程学院,长沙410073

出　　处：《系统仿真学报》2009年第23期7397-7400,共4页Journal of System Simulation

基　　金：武器装备探索研究项目(7130620)

摘　　要：飞机尾流探测是国际航空安全领域研究的热点。研究飞机尾流雷达回波信号仿真技术,提出了基于粒子模型的尾流雷达回波信号仿真方法,给出了尾流目标的对数螺线运动模型和尾流粒子脉冲多普勒雷达回波模型,分析了尾流各演化段的粒子分布特点。最后仿真结果表明尾流雷达回波频谱是展宽的,具有独特的时频分布演化特点。该仿真研究将有助于机场飞机尾流检测,对预防飞机事故,提高机场飞行容量具有积极意义。The aircraft wake vortex detection has been the frontier in the international air security field.The radar echo signal simulation technique of aircraft wake vortex was studied,and radar echo signal simulation method based on wake particle model was proposed.The logarithmic spiral motion model and the pulse Doppler radar echo model of aircraft wake particle were given,and the particle distribution characteristic in wake evolution ages was analyzed.Finally the simulation results indicate that the radar echo frequency spectrum of aircraft wake is expanded,and has the unique time-frequency distribution and evolution characteristic.This research will support the aircraft wake detection,and have positive sense in preventing the aircraft crash and improving the airports capacity.

关 键 词：飞机尾流 机场安全 多普勒雷达 尾流粒子模型 对数螺线运动模型 

分 类 号：V24[航空宇航科学与技术—飞行器设计]