湿性大气中飞机尾流的雷达探测性能

飞机尾流的雷达探测在民航安全、飞机目标探测与识别等领域具有重要的研究价值。针对雨、雾等湿性大气环境中飞机尾流的雷达探测问题，导出了尾流回波的多普勒速度谱、尾流探测的雷达方程及其可检测性因子的解析表达式。仿真研究了L、S、C、X和Ka波段雷达对雨、雾中飞机尾流的探测性能。结果表明，在全程雨、雾衰减的条件下，尾流的雷达探测距离可从数千米到大于200km；Ka、S波段雷达分别在近距离和远距离尾流探测中具有优势。

Radar Detection Performance of Aircraft Wake Vortices in Wet Air

Radar detection of aircraft wake vortices is important for civil aviation security,detection and identification of aircraft,etc.To study the problem of radar detection of aircraft wake vortex in wet air such as in rain and fog,analytical expressions are derived respectively for the Doppler velocity spectrum of wake vortices' echoes,the radar equation and its detectability factor of the detection of wake vortices.Detection performance of aircraft wake vortices in rain and fog is simulated for L,S,C,X,and Ka-...