heterodyne detection

例句：

1. 1.The heterodyne detection system is usedto detect the location of a target inspace.
   调频探测系统用于在空间中探测目标的位置。
2. 2. In this experiment, weused a heterodyne detection technique tomeasure the distance between two points.
   在这个实验中，我们使用了调频探测技术来测量两点之间的距离。
3. 3. The heterodyne detectionmethod has been widely used in military andsecurity applications.
   调频探测方法在军事和安全应用中得到了广泛应用。