软件无线电接收机的AGC信号处理算法及控制模型的设计与实现  

Design and Implementation of AGC Signal Processing Algorithm and Control Model for Software Radio Receiver

作　　者：施扬喜 赵利[1] 梁仪庆 唐俏笑 SHI Yang-xi;ZHAO Li;LIANG Yi-qing;TANG Qiao-xiao(Guangxi Key Laboratory of Precision Navigation Technology and Application,Guilin University of Electronic Technology,Guilin 541004)

机构地区：[1]广西精密导航技术与应用重点实验室,桂林电子科技大学,桂林541004

出　　处：《现代计算机》2020年第21期3-7,共5页Modern Computer

基　　金：国家自然科学基金(No.61771150);广西精密导航技术与应用重点实验室基金项目(No.DH201903);桂林电子科技大学创新项目(No.2019YCXS035)。

摘　　要：针对软件无线电接收机AGC设计的需求和目前存在的问题,采用近似线性化控制的思想,设计一种AGC信号处理算法,建立一种近似线性化的AGC控制模型,并针对LMS6002D射频前端电路,确定相关的工作参数。在软件无线电平台上,完成AGC硬件结构以及AGC信号处理算法和控制模型的设计与验证,实验表明软件无线电接收机实现了高动态、快速AGC调整功能。该方法具有层次清楚,实现较为简单,占用硬件资源较少,动态范围宽,调整收敛快的特点。Aiming at the requirements of software radio receiver AGC design and current problems,using the idea of approximate linearization con⁃trol,an AGC signal processing algorithm is designed,an approximate linearization AGC control model is established,and the LMS6002D RF front-end circuit is targeted to determine relevant working parameters.On the software radio platform,the design and verification of the AGC hardware structure,AGC signal processing algorithm and control model are completed.Experiments show that the software radio re⁃ceiver realizes high dynamic and fast AGC adjustment functions.This method has the characteristics of clear hierarchy,relatively simple implementation,less hardware resources,wide dynamic range and fast adjustment convergence.

关 键 词：AGC 控制模型 射频前端 软件无线电 

分 类 号：TN851[电子电信—信息与通信工程] TN911.7