By utilizing the Monte Carlo simulation for a discrete nonlinear stochastic system,the influence of the filter parameters on the performance of the joint estimator is analyzed and the updating rule of filter parameters is obtained.

Application and effect of digital geophone;

Seismic data character of single-point digital geophone and processing strategy.;

However, based on full-digital seismic exploration technology, the digital geophone system is employed, as well as digital signals exported from digital geophones are digitally transmitted into key stations for arrangemen.