基于Simulink的数字AGC系统设计与仿真  

Design and Simulation of Digital AGC System Based on Simulink

作　　者：陈永森[1] 吴海[1] 

机构地区：[1]船舶重工集团公司723所,扬州225001

出　　处：《舰船电子对抗》2010年第5期88-91,共4页Shipboard Electronic Countermeasure

摘　　要：在Simulink环境下搭建了数字自动增益控制(AGC)系统的仿真平台,该平台由中频信号模型、可控增益放大器、A/D采样与I、Q分离模型及峰值提取和AGC控制算法部分组成,各个部件与真实器件、模块相对应,且参数可变。该平台按照真实AGC系统的信号流程进行仿真,能够为数字AGC算法的性能进行预测和评估,为AGC系统的参数选择提供了分析工具。This paper constructs the simulation platform for digital auto gain control（AGC）system under the circumstance of Simulink,this platform is made up of intermediate frequency signal model,controllable gain amplifier,A/D sampling and I/Q separation model,peak value abstracting and AGC control algorithm,each part corresponds to the real device and model with variable parameters.The platform performs the simulation according to the signal flow of real AGC system,can performs the forecast and evaluation to the performance of digital AGC algorithm,which provides the analysis instrument for the parameter selection of AGC system.

关 键 词：自动增益控制 参数选择 控制算法 

分 类 号：TN957.5[电子电信—信号与信息处理]