一种可重配低复杂度结构的滤波器

Reconfigurable Low Complexity Filter for Software Defined Radio

基于FRM(Frequency masking)、内插以及抽取理论设计了一种新的滤波器结构。该结构采用FRM技术,具有低复杂度,而且具有结构级以及滤波器级的可重配性,能够提取出位于任意中心频点的任意带宽的信道。实验结果表明:本文提出的滤波器结构相比传统的PC方法能大大降低设计的复杂度。

An architecture for implementing the low complexity reconfigurable channel filter is proposed based on the interpolation, decimation and frequency masking （FRM） techniques. The architecture can extract channels with different bandwidths corresponding to the channel spacing of different time-varying channels. The experimental result shows that the proposed architecture considerably reduce the design complexity compared with the conventional perchannel approach.