threshold operator

例句：

1. 1. The threshold operator is used to determine when a signal should be considered as noise.
   门槛操作符用于判断信号是否应该被视为噪声。
2. 2. The threshold operator was designed to improve the accuracy of the system.
   门槛操作符被设计用来提高系统的准确性。
3. 3. The threshold operator is used in many applications, including image processing and signal analysis.
   门槛操作符在许多应用中都有使用，如图像处理和信号分析。