基于FPGA的数字下变频资源优化方法
The method of digital down conversion resource optimization based on FPGA
禹芳1
作者信息
- 1. 中国电子科技集团公司第三十八研究所,安徽 合肥 230088
- 折叠
摘要
中频模拟信号在数字采集板上做数字下变频处理需要消耗现场可编程门阵列(field programmable gate array,FPGA)的硬件资源,然而FPGA的硬件资源有限,为了留出更多的资源做后续处理问题,讨论在最佳采样率情况下,使用常规混频和三角函数特性2 种方法,通过仿真平台对比2 种方法的资源使用情况,使用三角函数特性的方法在一定程度上节省了资源开销.
Abstract
For intermediate frequency analog signals,the digital down-conversion processing on the digital acquisition board consumes the hardware resources of the FPGA.However,the hardware resources of the FPGA are limited to set aside more resources for subsequent processing of the problem.This paper discusses two methods using the conventional mixing method and trigonometric function characteristic in the case of optimal sampling rate and compares the resource usage of the two methods through a simulation platform.It can be seen that the method using trigonometric function characteristic saves the resource cost to some extent.
关键词
数字下变频/现场可编程门阵列(FPGA)/最佳采样/资源优化/中频模拟信号Key words
digital down conversion/field programmable gate array(FPGA)/optimal sampling/resource optimization/intermediate frequency analog signal引用本文复制引用
出版年
2024
NETL
NSTL
万方数据