利用噪声功率谱密度的统计特征评价台站对主动源信号的接收效能

摘要

We analysis the noise level of stations by using the statistical characteristics of background noise power spectral densities when the effective frequency is in the range of 1 ～ 10Hz at Binchuan region.The results show that the quality of records can be improved greatly with better observation condition and environment,the superposition of air-gun signals with high signal-to-noise ratio can be reduced,and the farther propagation distance also can be achieved with the same superposition by building and maintaining the stations with high quality.%利用背景噪声的功率谱密度的统计特征,对宾川主动源周边接收台站1 ～ 10 Hz有效频带的噪声水平进行了分析.结果表明:较好的台站观测条件和观测环境可以大大提高气枪信号的记录质量,通过建立和维护高质量的观测台站,可以减少获取高信噪比的气枪信号的叠加次数,也可以在同等叠加次数下获取更远的传播距离.