The sensitivity of digital laser receivers can be improved and the bit-error-rate of digital laser transmission system can be decreased by using amplitude compensation to eliminate interference between codes and by using digital value average to reduce random noise.

For this problem,this paper analyzes the characters of functions of AMDF and LV-AMDF and their shortages on pitch detection,and then proposes amplitude compensation based AMDF to detect the pitch.

Sensitivity analysis of AVO inversion in a case of multi-wave amplitude compensation in viscoelastic medium;

Based on analysis of seismic section features and seismic acquisition and processing in deep series of strata in Biyang depression, new technologies such as pre-stack surface wave and multiple suppression, shot point re-fix,surface consistent amplitude compensation and bin expansion are applied to re- process the initial 3-D seismic data in this area.

The poststack processing technique described in this paper consists of Lp modulo adaptive predictive statistical deconvolution, high-frequency content compensation, amplitude compensation and colour content correction.

Finally, a super-resolution one dimension range image can be achieved by amplitude-phase compensation and fusion two radar signals.