It improves the unequal interval gray forecast model, and the prediction precision is improved.
弥补了传统非等间距原始数据预测模型的不足，提高了灰色预测的精度。
The prediction precision of spectral analysis is very low, but the main period variations can be determined.
用谱分析进行钟差预报的精度不高，但可以发现钟差时间序列中的主要周期变化；
Being used the inversion method based on porosity of reservoir, the prediction precision has then been increased.
改用以孔隙度为基准的反演方法，提高了储层预测的精度。
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