一种检测可控震源特征信号异常记录的方法

A method for detecting anomalous records of vibratorsource signature

地面力是可控震源在施工过程中箱体记录的震源特征信号之一,在可控震源滑动扫描、高保真扫描、超高效混叠采集等项目中具有重要作用.但震源箱体在记录震源特征信号的过程中,会有少部分震源特征信号记录异常,特别是地面力异常,会影响后续的谐波衰减、数据分离等资料处理.本文针对VE464箱体和Vib Pro箱体记录的震源特征信号,提出了一种利用时间信息、状态码、不计算QC的时窗数量、出力、局部能量等进行震源特征信号异常记录的检测方法.通过对震源特征信号记录检测结果表明,这种方法能够有效、快速地发现震源特征信号的异常记录,在要求提交可控震源特征信号记录的采集项目中具有重要意义.

Ground force is one of the vibrator source signature recorded by the DSD during the vibroseisacquisition. It plays an important role in the Slip-Sweep, High Fidelity Vibratory Seismic ( HFVS)andUltra High Productivity ( UHP)vibroseisacquisition. However, in the process of recording vibrator source signature, there are a small number of anomalous vibrator source signature records, especially the anomalousground force, which will affect subsequent data processing such as harmonic attenuation and source separation. Aiming at the vibrator source signature recorded by VE464 box and VibPro box, this paper presentsa method for detecting anomalousrecords of vibrator source signature by using time information, status code, time inhibit, drive level and local energy of ground force. Thedetected results of vibrator source signature show that this method can detect the anomalous records of vibrator source signature effectively and quickly, and it is of great significance in vibroseis acquisition project which need to submit vibrator source signature records.