模拟自适应陷波器的原理与实现

The Principle and Realization of Analogue Adaptive Notch Filter

本文介绍作者所设计的一种高性能的模拟自适应陷波器(ANF)的原理、电路结构及实验调整的结果。这种ANF是从同类型的数字ANF演化而得到的,它的结构简单,调整方便、性能优良,不仅能应用于干扰为单一频率的场合,而且当干扰为复杂波形时也同样有效。

The principle, circuit structure and experimental results of a new analogue adaptive notch filter (ANF) are introduced. This analogue ANF is evolved from the same type digital ANF. It features simplicity in structure, easiness for adjustment and fine performance, suitable not only for filtering tingle frequency interference, but also filtering complex waveform interference.