气象资料周期性检验谱分析的代码，附带当时编码时的气象资料-Spectral analysis of weather data periodically test the code, with encoding time weather data

用于起停车过程中的阶次谱分析 可以实现非平稳信号的分析诊断-Parking for starting the process of the order of the spectral analysis of non-stationary signal can be achieved analysis and diagnosis

PSD功率谱分析，直接法、间接法两种！直接贴出C代码，可直接调用！-PSD power spectral analysis, the direct, indirect and French!