调频激励器中预加重滤波器的设计与实现  

Design and Realization of Pre-emphasis Filter in Digital Frequency-modulating Exciter

作　　者：尹文慧[1] 高飞[1] 卜祥元[1] 

机构地区：[1]北京理工大学信息科学技术学院电子工程系,北京100081

出　　处：《电声技术》2008年第6期31-33,共3页Audio Engineering

摘　　要：为了提高数字系统中滤波器的性能,对基于FPGA的数字调频激励器中预加重滤波器进行了设计与实现。利用MATLAB信号处理工具箱里专用的滤波器设计分析工具FDATool进行设计,用FPGA实现。根据硬件实现效果进行滤波器特性调整,达到了软硬件平衡的目的。To enhance the performance of the filter in the digital system, the pre-emphasis filter in a digital frequency-modulating exciter which is based on FPGA is designed and realized. The filter is designed by the special filter design and FDATool in the MATLAB signal processing Toolbox and realized by FPGA. In order to achieve the balance of hardware and software, the characteristics of the filter are adjusted according to the effect of hardware realization.

关 键 词：数字调频激励器 预加重滤波器 软硬件平衡 

分 类 号：TN713[电子电信—电路与系统]