As more and more people buy knockoff bags, the original signal loses its strength and changes form; it becomes harder to distinguish authentic signals from fake ones.

随着越来越多的人购买山寨包，原有的信号失去了强度，形式发生了变化；区分真实信号和虚假信号变得更加困难。

By measuring the slight differences between the original broadcast signal and the signals reflected from aircraft flying in the vicinity, it is possible to plot the position of aircraft on a screen, just as is done with conventional radar.

通过测量原广播信号和附近飞行器反射信号间的细微差别，有可能在屏幕上标绘出飞行器的位置，这和传统雷达的工作原理一样。