新型多相结构MWC宽带数字接收机设计  

Design of a novel MWC wideband digital receiver based on the polyphase structure

作　　者：陈涛[1] 蔡兴鹏 潘大鹏 CHEN Tao;CAI Xingpeng;PAN Dapeng(College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学信息与通信工程学院

出　　处：《国防科技大学学报》2020年第1期145-149,共5页Journal of National University of Defense Technology

基　　金：国家自然科学基金资助项目(61571146);中央高校基本科研业务费专项资金资助项目(HEUCFP201808)

摘　　要：提出一种基于多相调制宽带转换器结构的新型压缩采样数字接收机,可对宽带中频信号进行截获。新型接收机结构包括:串并转换、并行相乘、多相滤波三个模块。在用相同乘法器资源的条件下,新型接收机结构的整体数据速率远低于现有的调制宽带转换器结构,并且通过仿真验证了其正确性。该新型结构为调制宽带转换器离散压缩采样数字接收机在现场可编程门阵列上的物理实现奠定了基础,使整个接收机结构更具有实际工程应用价值。A new compressed sampling digital receiver based on polyphase MWC structure was proposed to intercept wideband IF( intermediate frequency) signal. The new receiver structure includes three modules: serial parallel conversion,parallel multiplication and polyphase filtering.With the same multiplier resources,the working rate of the new receiver structure is much lower than that of the existing MWC structure. Simulation result verifies the correctness of this new structure. The design lays a foundation for the physical realization of the MWC discrete compressed sampling digital receiver on the FPGA( field programmable gate array) and makes the whole receiver structure more practical in engineering application.

关 键 词：信号处理 宽带数字接收机 压缩采样 调制带宽转换器 多相结构 

分 类 号：TN957.51[电子电信—信号与信息处理]