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复杂电磁环境下的高速频谱分析技术
陈国通, 刘 琪, 孙 敬
河北科技大学 信息科学与工程学院,河北 石家庄 050000
摘要:
为解决传统频谱分析系统存在测试速度慢、对瞬态信号侦测分析不精确、实时性差的问题,提出了频率模板触发技术结合可重构计算,实现系统的超高速数据捕获、侦测与分析。频谱显示采用数字荧光显示技术,信号频谱展现更加实时、直观、精确。实测结果表明:该系统在可接受的性能损失范围内,提高了对信号的分析精确度。可重构计算使系统运行更高效,降低了传统频谱分析方法的能量消耗,使系统在大带宽情况下仍可实现对瞬态信号和复杂信号的实时精准分析。
关键词:  瞬变信号  信号捕获  频谱分析  频率模板触发  可重构计算  频谱视图  数字荧光显示
DOI:10.11805/TKYDA2019228
分类号:
基金项目:国家自然科学基金资助项目(61561010);河北省科技支撑资助项目(18210803D);河北省科技计划攻关资助项目(17210401D)
High-speed spectrum analysis technology in complex electromagnetic environment
CHEN Guotong, LIU Qi, SUN Jing
School of Electronic and Information Engineering,Hebei University of Science and Technology,Shijiazhuang Hebei 050000,China
Abstract:
In order to solve the problems of low test speed, inaccurate analysis of transient signal detection and poor real-time performance of traditional spectrum analysis systems, a Frequency Mask Triggering(FMT) technology combined with reconfigurable computing is proposed to achieve ultra-high speed data capture, detection and analysis. The digital fluorescent display technology is adopted to make the displayed signal spectrum more real-time and intuitive. The measured results show that the system has improved the accuracy of signal analysis within the acceptable performance loss range. The reconfigurable calculation makes the system run more efficiently, reduces the energy consumption, and enables the system to achieve real-time and accurate analysis on the transient signals and complex signals even under large bandwidth conditions.
Key words:  transient signal  signal capture  spectrum analysis  Frequency Mask Trigger  reconfigurable calculation  spectrum view  digital fluorescent display

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