程控线性跟踪有源滤波器的研究

A study on the Program-controlled Linear Trace Active Filter

滤波是数据采集和信号处理等领域至关重要的一环。通常的（模拟）滤波器，由于截止频率固定，在某些宽频率动态范围的场合，往往影响滤波效果。本文提出一种全新的程控线性跟踪滤波的硬件实现力法，弥补了原有滤波器的不足，取得了令人满意的效果。

Filting is extremely important in data acquistition and signal process fields. The general(analogue)filter will effect the results in some situations of wide frequeney dynamic range because itscut-off frequency is fixed. This paper puts forward an entrely new way of program-controlled lineartrace filter realized bv hardware.It counter acts the weakness of the former filter.and achievessatisfactory results.