基于FPGA的测井参考信号源设计

Design of Reference Signal Source for Well Logging Based on FPGA

目前高精度稳定的信号源在测井领域有着广泛应用。但传统信号源的实现过多依赖硬件,而且外围电路过于复杂,调试过程比较麻烦,易受恶劣环境的干扰,不容易修改和升级。基于上述几个方面的考虑,本文以FPGA为基础设计了一种正弦信号源,仿真结果表明整个系统达到了技术要求,且电路简单、控制灵活,与传统方法相比稳定可靠、容易扩展。

At present, high -precision signals has widely used in well logging fields. But the traditional signals have too much reliance on hardware, also it has many shortcomings, for instance, the external circuit is too complicated, the debugging process is full of trouble, it＇s easy to affected by wicked environments and not easy to revise or upgrade. Based on the above considerations, we have used FPGA to design the sinusoidal signals. After design and testing, the output waveform has reached the technical requirements, also the whole system was very simple, flexible, reliability, and of strong scalability, what＇s more,it＇s easy to change compared with the traditional design methods.