说明：  本matlab编程小例子是用于找油气的物探领域中的信号频谱分析，实用性强，资料最后附有可供学习的网站，希望本资料有用。
(This is a small example of matlab programming used to find oil and gas geophysical field in the signal spectrum analysis, practical, with final data for learning website and hope this information useful.)