瞬时谱估计，用于检测低频油气特性，有助于地层油气识别。-Instantaneous spectrum estimation for detecting low-frequency oil and gas properties, help to identify the formation of oil and gas.

一种有效的匹配滤波估算地层品质因子的方法，精度较高，稳定性较好，值得借鉴-A kind of effective method of matched filtering to estimate formation quality factor, high precision, good stability, is worth using for reference

时频分析；窗函数；基函数；时频分辨能力；地层旋回-Time-frequency analysis window function when frequency resolution capability base function formation cycle