本文阐述了BP 网络在信号处理领域的基本原理、方法和模型。文中指出了传统信号检测方法的局限性,并利用BP 网络强大的学习、并行运算能力和非线性映射等功能,提出了一种高效、简单的基于BP 网络信号动态检测的新方法。Abstract: This paper introduces the basic principles, method and model of the signal processing in the BP net, and prints out the limitation of the traditional detection method. An efficient and simple dynamic detection method of signals in the BP net is set forth by making use of the excellent functions of BP net, super parallel operation and non-linear images.Keywords: BP net; signals; dynamic detection