基于模型的数字音频广播信号调制系统设计  

Design of Digital Audio Broadcasting Signal Modulation System Based on Model

作　　者：陆探[1] 张徐亮[1] 朱伟杰[1] 朱万经[1] 

机构地区：[1]电子科技大学电子工程学院,成都611731

出　　处：《单片机与嵌入式系统应用》2012年第5期13-16,共4页Microcontrollers & Embedded Systems

摘　　要：本文设计并在FPGA芯片中实现了数字音频广播系统的信号调制系统。信号调制系统位于整个数字音频广播系统基带信号处理链的末端,是基带数字信号处理的核心系统。根据Eureka 147标准,信号调制系统需要对输入的基带码流进行数字调制、频域交织、差分调制以及正交频分复用等一系列处理。所设计的信号调制系统能够对输入的基带码流进行实时处理,完成上述信号处理算法,并输出数字音频广播的基带信号。A signal modulation system of digital audio broadcasting system is designed and implemented in FPGA. Signal modulation system which is at the end of digital audio broadcasting baseband signal processing chain, is the core system of baseband digital signal processing. According to the Eureka 147 standard, signal modulation system completes digital modulation, frequency interleave, differential modulation and orthogonal frequency division multiplexing of the input baseband stream. The signal modulation system can process input baseband stream in real time, completes above signal processing algorithms and outputs digital audio broadcasting baseband signals.

关 键 词：数字音频广播 FPGA VIRTEX 6 数字调制 频域交织 正交频分复用 

分 类 号：TN934.3[电子电信—信号与信息处理]