基于FPGA音频信号处理系统的设计

电子机电论文编号:JD846  论文字数:8570,页数:15

基于FPGA音频信号处理系统的设计

目录
摘  要 I
Abstract I
1  前言 1
2 FPGA工作原理 1
2.1 FPGA的介绍 1
2.2 FPGA配置模式 2
2.3 FPGA主要生产厂商介绍 2
2.4 FPGA与CPLD的辨别和分类 5
2.5 FPGA的应用 6
2.6 产品设计 6
2.7 系统级应用 6
3基于信号处理系统的设计 7
3.1 AC-Link音频编/解码原理 7
3.2 FPGA音频编/解码系统结构 9
3.3 AC-Link音频编/解码的VHDL设计 10
4 总结 11
参考文献 12
谢    辞 13

摘  要：随着数字技术的广泛应用，基于一般的DSP芯片设计方案不理想。首次DSP芯片现阶段的开发成本依然很高，远远不及大量ASIC芯片成本低，这正是ASIC芯片的优点之一。本文提出一种利用FPGA实现AC-Link数字音频处理系统的设计方案。AC-Link音频编解码系统以VHDL模块进行设计，经过波形仿真和结果验证后，将程序下载到FPGA中实现。把此系统用于信号处理系统设计中，可以缩短设计周期，提高设计的可靠性和效率。而且用 FPGA 实现 AC-Link 声卡的 D/A 变换功能的设计需要的资源少。
关键词：AC-Link；音频编/解码；FPGA；VHDL

Audio Signal Processing System Design Based on FPGA

Abstract: With the extensive application of digital technology, based on the general program DSP chip design is not ideal. DSP chips the first time at this stage of development costs remain high, which is far less than a large number of low-cost ASIC chips, which is one of the advantages of ASIC chips. In this paper, a FPGA realization of the use of AC-Link digital audio processing system design. AC-Link Audio Codec VHDL module system design, after the results of waveform simulation and verification, it will download to the FPGA to achieve. FPGA realization and use of AC-Link sound card D / A conversion functions of the design, fewer resources are needed. This system is used to signal processing system design, we can shorten the design cycle and improve design reliability and efficiency.
Keywords: AC-Ling; audio encoder / decoder; FPGA; VHDL