基于射频采样的短波宽带接收机设计  

Design of RF Sampling Short-wave Wideband Receiver

作　　者：程辉 肖扬灿[2] 马文文[3] 卢振钧 CHENG Hui;XIAO Yang-can;MA Wen-wen;LU Zhen-jun(Science and Technology on Communication Information Security Control Laboratory,Jiaxing Zhejiang 314033,China;No.36 Research Institute of CETC,Jiaxing Zhejiang 314033,China;Unit 32090 of PLA,Langfang Hebei 065001,China)

机构地区：[1]通信信息控制和安全技术重点实验室,浙江嘉兴314033 [2]中国电子科技集团公司第三十六研究所,浙江嘉兴314033 [3]中国人民解放军32090部队,河北廊坊065001

出　　处：《通信对抗》2020年第2期47-49,共3页Communication Countermeasures

摘　　要：目前大多数短波接收设备采用了于软件无线电理念的中频采样架构,该架构的接收机存在体积大、成本高及设备性能受前端模拟器件影响大等问题。阐述了一种基于射频采样的短波宽带接收机设计方案,该接收机采用单通道ADC对短波全频段进行射频直接采样,瞬时处理带宽为28.5 MHz,并在FPGA内实现了短波频段内特定信号的自动识别感知,具有高灵敏度、大动态等特点,在保证性能的同时解决了现有设备体积大、成本高等问题。At present,most of the short-wave receiving equipment is based on the IF sampling architecture of software radio.Thereceiver of this architecture has many problems,such as large volume,high cost and great influence of analog front-endon the performance of the equipment.This paper expounds a short wave wide-band receiver design scheme based on RF sampling,the receiver samples short wave full frequency by single channel ADC,instantaneous processing bandwidth for 28.5MHz,and within the FPGA to realize a specific signal automatic identification,has the characteristic such as hignsensitivity,large dynamic,solves the existing equipment at the same time the performance of large volume and high cost problems.

关 键 词：短波 宽带接收机 射频直接采样 FPGA 

分 类 号：TN918[电子电信—通信与信息系统]