宽带频谱自动监测系统设计  

Design of automatic broadband spectrum monitoring system

作　　者：王晓飞[1] 巩克现 王玮[1] 孙鹏[1] Wang Xiaofei;Gong Kexian;Wang Wei;Sun Peng(School of Electrical and Information Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学电气与信息工程学院,郑州450001

出　　处：《电子测量技术》2024年第19期1-8,共8页Electronic Measurement Technology

基　　金：国家自然科学基金青年项目(61901417);河南省科技攻关计划(242102211107)项目资助。

摘　　要：随着卫星通信技术的发展,传统的频谱监测模式难以满足监测需求。为契合现代卫星信号接收机对更大带宽、更高分辨率及更强实时性处理的迫切需求,研制了一种宽带频谱自动监测系统。该系统通过射频直接采样技术与信道化处理,实现了对卫星信号频谱的大带宽、高分辨率显示。实验结果表明,该系统能够对L频段信号进行实时监测,生成L频段信号的全景频谱,且频谱分辨率小于1 kHz。上位机通过对频谱数据的深入剖析,该系统能够自动识别并存储信号参数,且其便携性与灵活性设计,使得该系统能够灵活部署多种应用场景,完美契合了现代卫星信号接收机技术发展方向。With the development of satellite communication technology,the traditional spectrum monitoring mode is difficult to meet the monitoring needs.In order to meet the urgent needs of modern satellite signal receivers for larger bandwidth,higher resolution and stronger real-time processing,an automatic broadband spectrum monitoring system was developed.The system realizes the large-bandwidth and high-resolution display of the satellite signal spectrum through RF direct sampling technology and channelization processing.Experimental results show that the system can monitor the L-band signal in real time and generate the panoramic spectrum of the L-band signal with a spectral resolution of less than 1 kHz.Through the in-depth analysis of spectrum data,the system can automatically identify and store signal parameters,and its portability and flexible design make the system flexible to deploy a variety of application scenarios,which perfectly fits the development direction of modern satellite signal receiver technology.

关 键 词：频谱监测 高分辨率 射频直采 信道化 频谱展示 参数识别 

分 类 号：TN914[电子电信—通信与信息系统]