基于FPGA的多路电话录音系统设计  

Design of Multi-channel Telephone Recording System Based on FPGA

作　　者：章晓春[1] 

机构地区：[1]温州职业技术学院,浙江温州325035

出　　处：《科技通报》2015年第3期153-155,160,共4页Bulletin of Science and Technology

基　　金：浙江省高等学校访问工程师校企合作项目(FW2012019)

摘　　要：提出一种多路电话录音系统的设计,主要基于ARM+FPGA+DSP平台实现。采用FPGA作为信号采集部分的主控制器。FPGA负责采集音频PCM信号和摘挂机的数字信号并对PCM信号进行铃流识别和预处理,结果发送给ARM处理器。DSP处理器对DTMF信号和忙音信号进行分析处理,结果通过FPGA发送给ARM处理器。本设计系统性能稳定,成本低,性价比高,将具有强大的市场竞争力。Presents the system design of a multi-channel telephone recording, mainly based on ARM ,FPGA and DSP platform. The signal acquisition system used FPGA as the main controller. The FPGAcontroller receives the PCM signal and the digital signal of the telephone states. And it also identifiesand preprocesses ring signal of PCM signal. The results are sent to the ARM processor. The DSPprocessor processes the DTMF signal and the busy tone signal. And the results are sent to the ARMprocessor by the FPGA. The system with stable performance and low cost will have good marketcompetitiveness.

关 键 词：FPGA控制器 ARM处理器 DSP处理器 SPI HPI 

分 类 号：TN912.221[电子电信—通信与信息系统]