In development of the instrument, the methods of digital filtering and neural network for data processing are adopted for anti-interference and enhancing stability and accuracy.

在仪器的研制中采用数字滤波和神经网络的数据处理方法以克服干扰、提高稳定性和准确性。

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Two methods with which the long disturbance is removed from the digital are introduced: narrow band low - pass filtering canceling method and adaptive high - pass filtering method.

本文主要提出两种消除数字地震信号中长周期随机干扰的方法：窄带低通滤波对消法和自适应高通滤波法。

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The sampling and filtering methods with PLC for digital and analog signals are described in the article.

介绍PLC对数字量信号和模拟量信号的采样和滤波处理方法。

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