摘要
传统测井系统中,测井电缆上应用单载波调制技术进行数据传输,传输速率低,带宽受限,严重制约了测井系统尤其是成像测井系统的发展。OFDM(正交频分复用)技术信道利用率高,抗干扰能力强,应用OFDM技术能够较好地解决以上测井数据传输的问题。在分析了传统测井电缆传输的信道特性和正交频分复用技术原理的基础上,使用Altera公司的DSP Builder软件设计了一种基于OFDM技术的井下数据遥测系统,并在Altera公司的Stratix EP1S25系列FPGA开发板上实现系统的仿真和验证。
In the traditional logging system,the data transmit in the wireline by single carrier modulation,but the low transmission rate and narrow band restricted the development of logging system seriously.To solve this problem,a new data transmission system with high data transmission rate and strong anti-jamming is proposed,which is based on OFDM（short for Orthogonal Frequency Division Multiplexing） technology.This system is designed under Matlab software with Altera DSP Builder function integrated,simulated and verified on the breadboard of Altera Stratix EP1S25 Series FPGA.
出处
《计算机技术与发展》
2010年第10期215-218,共4页
Computer Technology and Development
基金
四川省重点实验室开放基金(2008KJ06)
