基于灰色模型的电缆衰减值变化规律研究

Research on the Change Law of Cable Attenuation Value Based on Grey Model

为描述实际对象的某些特性随时间(或空间)演变的过程、分析其变化规律、预测未来性态、研究控制手段时,通常可基于因果预测法,建立对象的动态微分方程模型。该方法适用于短、中、长期预测,能反映事物的内在关系及规律,且精度较高。本文通过建立灰色预测模型,研究电缆衰减值变化规律,对电缆未来的衰减值进行预测。

In order to describe the evolution process of certain characteristics of an actual object over time(or space),analyze its change patterns,predict its future behavior,and study its control methods,the dynamic differential equation model of the object can be established based on the causal prediction method.This method is suitable for short,medium and long-term prediction,and can reflect the internal relationships and laws of things with high accuracy.In this paper,the grey prediction model is established to study the variation pattern of cable attenua-tion value and predict the future attenuation value of cable.