核测井信号数字滤波器的性能分析

Property analyzing of digital filters used in nuclear logging signals

为了便于选用数字滤波器处理核测井信号,采用定量研究的方法,分析了各种数字滤波器的性能和局限性,针对应用过程中存在的问题,提出了解决数字滤波器时延特性的技术途径和确定滤波器点数的方法。结果表明,合理选用滤波方法及滤波点数,能够明显改善核测井信号的滤波效果。

Quantitative studying method is used to analysis the property and limitation of digital filters in order to process nuclear logging signals using digital filters. The solution method to depth delay of digital filtering methods and the method to calculate the number of the filters is given out to meet with questions existing in the course of the appliance. The researching result shows that it has good effect on processing nuclear logging signals by selecting filtering method and the number of the filters.