If you use the fixed coefficient method or load in specific percentage then you need to be careful when these percentages change or if you add a particular company.

如果您使用固定系数方法或载入具体比例，那么当这些百分比变更或您添加了特定公司时您需要小心。

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But the filter method avoids the error caused by truncated data and it can achieve the analysis of a fixed percentage bandwidth easily.

采用滤波法进行功率谱分析，不存在数据截断带来的误差，还可方便地用于等百分比带宽的谱分析。

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