摘要
基于油田井下发射的电磁信号的信道分析,设计了一种可行的油井下无线通信方案,介绍了2DPSK信号在油井下无线通信中解调及载波恢复等相关原理和实现方法,分析和论证了怎样接收微弱的载波信号并解调出所携带的数据信息.
This paper puts forward a method of transmitting specially modulated electromagnetic signal in down-hole and receiving the signal on the ground. 2DPSK system, with the merits of straightforward principle, high ratio of spectrum used, low ratio of error code, is selected as the way of modulated and demodulated for the system. And the way of realizing the system is also discussed.
出处
《哈尔滨商业大学学报（自然科学版）》
CAS
2009年第1期72-75,共4页
Journal of Harbin University of Commerce：Natural Sciences Edition
