分析了直升机和固定翼飞机两类空中目标的多普勒频谱测量能力，并在测量能力得到满足的前提下，对其目标的多普勒频谱特征进行了分析，找出了它们之间的不同之处，提出了对其目标进行分类识别的方法，通过对18种直升机和固定翼飞机的仿真数据以及现场实测数据的检验，证明该方法是有效的，并且适用于悬停直升机的探测与识别。

In this paper the Doppler spectrum measurement ability of air targets including helicopter and fixed-wing aircraft is analyzed firstly. Then the Doppler spectrum features of these two kinds of targets are analyzed provided the measurement ability is satisfied. Differences petween the spectrums are found and a method for identifying these two kinds of targets is suggested. This method has been proved to be efficient by testing the simulated data of the eighteen kinds of helicopters and fixed-wing aircraft and on-the-spot measured data. This method can also be applied to detection and identification of hovering helicopter.

TN958

国防预研基金资助课题