摘要
研究了正交相关法的数学原理,给出了仿真计算与测试应用的实例。结果表明,正交相关法具有很强的噪声抑制能力,克服了大噪声对标定精度的影响,大大提高了甚宽频带地震计的频域标定精度。
In this paper, a new correlation processing method-vertical correlation method is presented. A mathematics principle of vertical correlation method is studied and examples of simulation and application are given. The results show that vertical correlation method has strong noise-reduction ability, eliminates strong-noise's influences to calibration precision and raises greatly frequency-domain calibration precision for very broadband seismometer.
出处
《武汉大学学报(信息科学版)》
EI
CSCD
北大核心
2005年第7期632-635,共4页
Geomatics and Information Science of Wuhan University
基金
中国地震局"九五"重点计划资助项目(95010102
95010110)。
关键词
甚宽频带地震计
频域标定
正交相关法
very broadband seismometer
frequency-domain calibration
vertical correlation method