地震数传电缆串音的分析  

Analysis of Crosstalk Inference in Digital Seismic-Signal Transmission Cable

作　　者：付小宁[1] 石金成[1] 

机构地区：[1]西安石油学院仪器仪表质量监督检验中心,710061

出　　处：《石油仪器》1996年第2期17-18,共2页Petroleum Instruments

摘　　要：将地震数传电缆看作平行双线，采用电磁耦合微分元模型，以串音电流为分析对象，分析和推导了远端串音和近端串音，提出串音信号是主串信号频率响应的观点。讨论串音信号的特点，概括它的影响，将有助于正确认识串音干扰和选择适当的参数使系统性能最优。The transmission cable, used for digital seismic-signal transmission, can be abstracted as two parallel lines. Base on this point of view, taking the crosstalk current as analysising object and applying electromag-netic coupling differential unit model, a conclusion that the crosstalk interference was the frequency re-sponse of main crosstalk signal was put forward by analysizing the near-port and far-port crosstalk inferen-ce. The characteristics of crosstalk was discussed and the affections of it summarized in this article. The work will be useful to correctly recognize the crosstalk inference and optimize the system by suitable sys-tem parameters selection.

关 键 词：地震 数据传输 电缆 串音 

分 类 号：TM248[一般工业技术—材料科学与工程] P631.443[电气工程—电工理论与新技术]