摘要
在高速率泥浆脉冲随钻数据传输系统中,采用了新型摆动阀脉冲器,它可以支持更高的数据传输率及更多样化的数据调制方式。针对这种新型传输系统设计并实现了多种数据调制解调方案。其中调制方案包括调幅、调相及连续调频调相三种调制方法,解调方案包含数据采集、信号预处理、匹配、均衡及解码全过程。实现了高速率随钻数据传输的调制解调功能搭建,并进行了实时解调实验,验证了其可行性和有效性。
Swing valve pulser used in the log well drilling system can match the need of high transfer rate and offer the possibility of multiple modulation. In this paper, a modem scheme for this transmission system is explained. Wherein the modulation scheme includes amplitude shift keying, phase shift keying and continuous-phase frequency shift keying. And demodulation scheme includes data acquisition, signal preprocessing, matching, decoding and equalization process.
引文
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