有源频谱压缩的正交码发送参考Chirp超宽带系统  

Code-Orthogonalized Transmitted-Reference Chirp Ultra-Wideband System with Active Spectrum Compressed Structure

作　　者：张剑 胡捍英 汪涛 李霞 

机构地区：[1]国家数字程控系统工程与技术研究中心,郑州450002

出　　处：《北京邮电大学学报》2010年第6期107-111,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家高技术研究发展计划重点项目(2009AA011205);国家科技重大专项项目(2009ZX03006-008)

摘　　要：在已有发送参考脉冲超宽带系统基础上,针对拓展距离超宽带应用需求,借鉴雷达信号处理中的去斜脉冲压缩方法,提出了一种基于有源频谱压缩结构的正交码发送参考chirp超宽带系统.数学推导和性能仿真结果表明,该系统兼具发送参考结构和chirp通信系统的优势,不需要模拟匹配滤波器件和高速模数转换器件,更有利于系统的小型化、低功耗和集成化设计.Based on the transmitted-reference impulse radio ultra-wideband （IR-UWB） system, a new code-orthogonalized transmitted-reference chirp UWB system is proposed to meet the needs of UWB appli- cation with increasing transmission distance. Referring to the de-chirp methods in radar system, it designs an active spectrum compressed structure for the receiver. Analysis and simulation show that this system has both the advantages of transmitted-reference IR-UWB systems and chirp-UWB systems. Furthermore, the analog matched filter and high-speed analog-to-digital converter are not required, but facilitate system miniaturization, low power-consumption and integration design.

关 键 词：超宽带 CHIRP 发送参考 正交码 有源频谱压缩 

分 类 号：TN911[电子电信—通信与信息系统]