这对瞬态信号和变频率的非平稳随机信号分析尤为重要。
It is especially important for the analysis on transient signals and zion-stationary random signals with changing frequencies.
验证了时间序列分析方法在非平稳随机信号处理方面的可靠性；
The reliability of the time-series analysis method in processing unsteady random signals is verited.
该方法得到的趋向性序列能更准确地逼近非平稳随机信号的趋向性曲线。
The trend component series derived from this way can near more exactly the trend component curve of the variance-stationary random signal.
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