在论述抗频率混叠抽取器原理的基础上,结合AlteraDSP Builder开发工具,在Matlab/simulink环境下完成了基于FPGA的抽取器的设计与实现,为数字信号处理提供了一种基于FPGA和DSP Builder的解决方案.实验表明,多相结构是一种系统资源占用少、适合于硬件实现的高效结构.
A method to design a decimator based on framework of anti-band-overlap decimator using DSP Builder was proposed. The decimator implemented in FPGA is designed under the circumstance of MAT- LAB/Simulink. Finally, and the experiment shows the polyphase filtering framework is suitable for hardware implementation for its small resource need.