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 existing UWB systems, aiming at the demand of expanding UWB applications and using the beveled pulse compression method in radar signal processing, an orthogonal code based on active spectral compression is proposed to transmit reference chirp super Broadband system.The mathematical derivation and performance simulation results show that the system has the advantages of sending reference structure and chirp communication system without the need of analog matched filter and high speed analog-to-digital conversion device, which is more conducive to the system’s miniaturization, low power consumption and Integrated design.