Combining the local wave decomposition with the traditional time-frequency method,the numerical algorithms are implemented with usage comparison between the modelled signal and 2D .

This paper introduces a spectrum sharing noise elimination method of stacked seismic data, which can stack time domain trace with spectrum sharing whiten and consistent correction stack, which can eliminate the residual effect and noise by trace of surface explosion, receiving different, inclined angle and surface so on, and thus improves the resolution and signaltonoise ratio of seismic data.

In order to further improve the output power and efficiency of high frequency power amplifier,a solution is proposed by means of using the single chip computer and CPLD frequency division which can develop radiofrequency carrier wave signal,and use double-power-supply class-D high frequency power amplifier as the power amplifier.

Some main circuit s features,including the pulsed drive signals generation,logic frequency division and phase deviation, driver and singlerpole feedback are analyzed,and at last the results of experiment are given.

The advantages, principles and application methods of its frequency division and M/T measurement of speed are provided.

Seismic inversion based on logging trace frequency-shared analysis;