coherency function

例句：

1. 1.The coherence function of a system is crucial for its stability.
   系统的一致性函数对于其稳定性至关重要。
2. 2. In data analysis, the coherence function helps to identify patterns and trends.
   在数据分析中，一致性函数有助于识别模式和趋势。
3. 3.The coherence function is used to measure the similarity between two signals.
   一致性函数用于测量两个信号之间的相似性。