摘要
针对目前衰减信号挖掘系信噪分离掘精度低问题,提出基于互相关检测技术的衰减信号挖掘系统。采用单片集成函数信号发生器ICL8038产生的衰减信号正弦波,然后利用平衡解调芯片AD630进行衰减信号锁相放大器电路设计,将相关算法与自适应滤波器进行有机结合设计了相关自适应滤波器,实现衰减信号与干扰噪声信号的有效分离,结果表明,本文系统能够实现有效的信噪分离,且获得了包含细节信息的衰减信号波形。
In order to solve the problem of low precision of signal noise separation in the attenuated signal mining system,a decaying signal mining system based on cross correlation detection is proposed.The monolithic integrated function signal generator ICL8038 generates signal attenuation sine wave,and then uses the balanced demodulation chip AD630 signal attenuation lock-in amplifier circuit to design,the related algorithms and adaptive filter are combined to design adaptive filter,realizes the effective separation of the attenuated signal and noise.The results show that this system can realize the effective channel noise separation,and remains the attenuation of the signal waveform contains details.
作者
张凯斐
张菊芳
王翠娥
ZHANG Kaifei;ZHANG Jufang;WANG Cuie(Lvliang University,Lvliang Shanxi 033000,China;Shanxi Institute of Energy,Taiyuan Shanxi 030000,China)
出处
《激光杂志》
北大核心
2018年第8期174-177,共4页
Laser Journal
基金
吕梁学院校内基金项目(No.JYZD201703)
关键词
无线光纤通信
网络衰减信号
数据挖掘
信噪分离
wireless optical fiber communication
network attenuation signal
data mining
signal noise separation
