伺服信号的改造在VE464箱体上探索及分析  

Servo signal modification on VE464 decoder exploration and analysis

作　　者：李红远 王井富 刘志刚 门哲 雷云山 Li Hongyuan;Wang Jingfu;Liu Zhigang;Men Zhe;Lei Yunshan

机构地区：[1]东方地球物理公司采集技术中心,河北涿州072750 [2]河北省地震勘探数据采集技术创新中心 [3]东方地球物理公司装备服务处

出　　处：《物探装备》2022年第5期329-332,336,共5页Equipment for Geophysical Prospecting

摘　　要：从激发源头上降低谐波畸变的水平是地球物理工作者和装备制造商共同努力的方向,VibPro HDR、CleanSweep、SmartLF等技术从激发上降低谐波水平均是成熟的解决方案。通过伺服信号的改造在VE464箱体上的应用,同样也能够达到降低谐波水平的方法。文中介绍了方法原理、技术实现及测试分析等过程,表明将反畸变扫描信号作为伺服信号来降低谐波水平是一种有效的方法,对下一步从激发上降低谐波具有指导意义。Reducing the level of harmonic distortion from the excitation source is the direction of joint efforts of geophysical workers and equipment manufacturers.VibPro HDR,CleanSweep,SmartLF and other technologies to reduce harmonic levels from excitation are mature solutions.Through the application of servo signal modification on VE464 decoder,the same method of harmonic level reduction can be achieved.The paper introduces the process of method principle,technical implementation and test analysis,etc.It shows that using the inverse distortion sweep signal as servo signal to reduce harmonic level is an effective method,which has guiding significance for the next step of harmonic reduction from excitation.

关 键 词：伺服信号 VE464 反相关 反畸变扫描信号 谐波干扰 

分 类 号：P631.4[天文地球—地质矿产勘探]