This work deals with the fundamentals of basic frequency band signal transmission sys-tem for well logging and analyzes the bipolar return-to-zero system and Manchester trans-mission system for well logging in detail.

• 本文介绍了基带传输系统的原理,并较详细地分析了用于测井的双流归零制基带传输系统和曼彻斯特传输系统。