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在对f-x域预测滤波去噪技术深入研究的基础上，本文提出产工域算子外推去噪技术。f-x域算子外推去噪技术的假设前提和数学原理与f-x域预测滤波去噪技术大致相同。不同之处是它利用了有效反射信号和线性（或近似线性）干扰波的道间时差及能量的差异，以及有效信号同相轴的所有频率成分具有相同时差的假设条件，运用信噪比较高的中频段频率成分外推来求取高、低频带的预测算子。利用求得的预测算子进行预测滤波去噪处理，可使掺杂在有效地震反射数据中的随机噪声和线性（或近似线性）干扰波同时得到压制，同时还能使有效信号的高频成分得到较好的保护。
Based on the in-depth study of the f-x domain prediction filter denoising technique, this paper proposes the extrapolation denoising technique of the domain operator. The assumption and mathematical principle of f-x domain extrapolation denoising technique are roughly the same as the f-x domain prediction filtering denoising technique. The difference is that it makes use of the assumption that the difference between the inter-channel time difference and energy of the effective reflection signal and the linear (or nearly linear) interference wave and the same time difference of all the frequency components of the effective signal in the phase axis, The frequency components of the IF extrapolation to obtain high and low band predictors. By using the predictive operator to predict and filter the noise, the random noise and the linear (or nearly linear) interference wave doped in the effective seismic reflection data can be suppressed at the same time. At the same time, the high frequency component of the effective signal Get better protection.