中文摘要：

主要分析了利用民航飞机散射信号的多普勒频移定位地面干扰源的2种定位算法。第1种算法通过零误差等高线相交来进行定位，第2种算法通过比对理论和实际的时频曲线最大互相关值进行定位。对这2种定位算法的优缺点进行了分析，理论仿真和实际测试结果表明，2种定位算法的误差较小，均能较好地完成定位工作。因此，通过民航飞机的散射信号来定位地面干扰源是完全可行的。

英文摘要：

In emitter locating by scattered signals of civil airplanes, two algorithms in the locating steps are discussed in this article. The first algorithm is achieved by the intersection of several zero-error contours, and the second is achieved by the comparison of theoretical and measured maximum cross-correlation values. The advantages and disadvantages of the two algorithms are analyzed. The simulation results and field tests show that the deviation is small enough to fulfill locating tasks. It is feasible for emitter locating by scattered signals of civil airplanes.