基于CPLD的电磁波随钻测井仪发射电路设计

Design of the Transmitter Circuit of Electromagnetic Wave LWD Logging Tool Based on CPLD

利用VHDL语言对CPLD进行控制,实现分频、选频、天线选择、译码器等功能,完成电磁波发射电路的设计。结果表明,CPLD开发成本较低,实现容易,具有较高的灵活性,能够实现电磁波发射电路所需功能,仿真结果与预期一致。

In order to design the electromagnetic transmitter circuit, VHDL language is used to control CPLD to achieve frequency diving,frequency selection, antenna selection, decoder and other functions. The results showed that CPLD has low cost and high flexibility, and it is easy to implement,and an electromagnetic wave transmission circuit can be realized with the desired functions, which consistent with the expectations.