Coherent noise suppression in electroseismic data with non-stationary prediction-error filters

نویسندگان

  • Seth Haines
  • Antoine Guitton
چکیده

Non-stationary prediction-error filters (PEF’s) provide an effective means for separating signal from coherent noise in electroseismic data. The electroseismic signal is much weaker than the noise, so we can not rely on windowing, transforms, or other alterations of the original data to create models for the PEF estimation. Instead, we design signal PEF’s using the physical predictability of the phenomena, and estimate noise PEF’s using portions of the original data. This technique is effective on synthetic and real data.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Removal of coherent noise from electroseismic data

The electroseismic method offers the possibility of imaging thin (much smaller than the seismic wavelength) layers in the subsurface. Removal of coherent source-generated noise is an essential step in the processing of electroseismic data. We present a signal-noise separation technique that begins with the determination of signal and noise prediction error filters (PEF’s) from windows of the or...

متن کامل

Development of experimental methods in electroseismics

The electroseismic method offers the possibility of imaging thin (much smaller than the seismic wavelength) layers in the subsurface. We have collected electroseismic data in the field using a standard seismograph outfitted with electrode pairs rather than geophones, and a sledge hammer and other seismic sources. Removal of coherent source-generated noise is an essential step in the processing ...

متن کامل

IMPLEMENTATION OF EXTENDED KALMAN FILTER TO REDUCE NON CYCLO-STATIONARY NOISE IN AERIAL GAMMA RAY SURVEY

Gamma-ray detection has an important role in the enhancement the nuclear safety and provides a proper environment for applications of nuclear radiation. To reduce the risk of exposure, aerial gamma survey is commonly used as an advantage of the distance between the detection system and the radiation sources. One of the most important issues in aerial gamma survey is the detection noise. Various...

متن کامل

Non-stationary, multi-scale prediction-error filters and irregularly sampled data

Non-stationary prediction-error filters have previously been used to interpolate sparse, regularly sampled data. I take an existing method used to estimate a stationary predictionerror filter on sparse, irregularly sampled data, and extend it to use non-stationary prediction-error filters. I then apply this method to interpolate a non-stationary test case, with promising results. I also examine...

متن کامل

Removing velocity stack artifacts

The Prediction Error Filter (PEF) is a widely used tool in various geophysical applications such as signal-noise separation and interpolation of missing data. Over the years, SEP has developed tools to estimate non-stationary Prediction Error Filters. Non-stationary PEFs are successfully used for multiple removal, ground-roll attenuation, and in other geophysical problems. I apply a non-station...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003