基于FPGA的自动增益控制系统的设计  

The Design of AGC System Based on FPGA

作　　者：王大迟 吴扬 贾义 WANG Dachi;WU Yang;JIA Yi(Anhui Zhibo Photoelectric Technology Co.,Ltd.,Anhui 231600,China)

机构地区：[1]安徽至博光电科技股份有限公司,安徽231600

出　　处：《集成电路应用》2020年第9期4-5,共2页Application of IC

基　　金：安徽省科技企业技术创新课题。

摘　　要：提出一种基于现场可编程门阵列(FPGA)和可变增益放大器(VGA)实现的自动增益控制系统的设计。该系统采用信号强度检测技术和自动增益控制技术实现了信号幅值精确可调。输入信号的强度由大动态范围的检波器件采集,信号的幅值由VGA增益控制电平决定,FPGA通过控制DAC的输出模拟量改变增益控制电压。This paper presents a design of automatic gain control system based on field programmable gate array(FPGA)and variable gain amplifier(VGA).The system adopts signal strength detection technology and automatic gain control technology to realize accurate adjustment of signal amplitude.The intensity of the input signal is collected by a detector with a large dynamic range,the amplitude of the signal is determined by VGA gain control level,and FPGA changes the gain control voltage by controlling the output analog quantity of DAC.

关 键 词：集成电路设计 自动增益控制 FPGA 检波 反馈 

分 类 号：TN791[电子电信—电路与系统]