论文标题
稳定的太阳能周期性：时间稳定性
Stable Solar Periodicities: The Time Stability
论文作者
论文摘要
我们表明，虽然傅立叶变换只能发现周期性信号的“强度”，但还有一个嵌入的其他信息，这是信号的“连贯性”。假设周期性仅反映在“连贯性”上，我们引入了时间稳定性，以作为“连贯性”的度量，不包括“强度”，即信号的幅度。在强度意味着力量或振幅的情况下，我们采用基于经典的强度的意义，我们采用基于稳定的意义作为标准，以随机信号中的选择循环。我们检查时间稳定的太阳周期性，并表明在外部太阳能活动中发现的大多数周期性（例如太阳风中的太阳能中），例如黑子，而时间稳定性可以是对随机太阳能活动的光谱分析的有效工具。
We show that while the Fourier transform can figure only an "intensity" of a periodic signal, there is an additional information embedded, which is a "coherence" of the signal. Supposing that the periodicity is reflected only on the "coherence," we introduce a time stability as a measure of "coherence" excluding the "intensity," i.e. amplitude of signal. In stead of classical strength-based significance, where strength implies the power or amplitude, we adopt a stability-based significance as criterion to choose cycles in a random signal. We inspect the time-stable solar periodicities and show that most periodicities discovered in exterior solar activities such as the solar wind inhere in interior solar activity such as the sunspot and that the time stability can be an effective tool in spectral analysis of stochastic solar activity.
