摘要
本文给出了一种用计算机控制的超外差滑窗式FFT电磁环境监测系统的结构,并对其工作原理和系统的软、硬件设计作了简要的分析。它可以监测3～30MHz频段范围内的电磁频谱占有情况,也可只对其中感兴趣的频段进行监测,并能完成对大气噪声背景电平的测量。
This paper describes a superheterodyne sliding window FFT electromagnetic environment monitoring system controlled by a computer,the principle of its work and the design of software and hardware have been analyzed briefly. It can determine the electromagnetic spectral odcupancy in 3-30MHz or in some interested bands of them,it also can measure the background level of atmospheric noise.
出处
《电子测量技术》
北大核心
1996年第4期6-8,共3页
Electronic Measurement Technology
