摘要
为实现混场源电磁法应用的电性源信号发射,弥补天然电磁场信号弱的不足,设计了一种基于多频信号的混场源电磁发射系统。多频信号具有多个频率成份且各成份能量均衡的特点,发射该类信号可使系统一次发射多个频点,大大提高发射效率。同时,发射系统发出的多频信号为近似对数间隔频点的信号,更适合接收系统对数据的处理。实验表明:发射的多频信号能够满足混场源电磁法的探测要求,具有与磁性源系统相似的探测效果。
To transmit electricity-signal source applied on hybrid-source magneto tellurics（HSMT） so that the deficiency of nature electromagnetic signal weak can be reparable, an HSMT transmitting system is designed based on multi-frequency signal. Having multi-frequency and the equilibrium energy of all frequency of the multi-frequency signal, the system can transmit multi-frequency by transmitting it so that the transmitting efficiency is improved obviously. The frequency interval of the transmitting signal approximates logarithmic form which is more suitable for data processing of reception system. The experiment proved that the transmitted multi-frequency signal can fulfilled detecting request of HSMT and having similar detecting effect with magnetic-signal source.
出处
《电波科学学报》
EI
CSCD
北大核心
2009年第5期874-878,共5页
Chinese Journal of Radio Science
基金
吉林省科技发展计划项目(吉科合字20050322-1号)
