A class of approximation-order prefilter method for multiwavelets;

A technique for compressing synthetic aperture radar(SAR) image data using multiwavelet transform and prefilter methods is considered.

For common biorthogonal multi-wavelets system,a simple definition of balancing of order is proposed,and the prefilter theory is introduced to biorthogonal multi-filter banks.

A Novel Method Based on Prefiltering for Super-Resolution in Radar Range;

Prefiltering of Multiwavelet with 2-order Banlancing;

In this paper,we develop a jitter-free all digital Timing Recovery Scheme with fast tracking capability based on Gardner timing error detector(TED),prefiltering,Kalman filtering and first-order zero-crossing digital phase-locked loop(ZC-DPLL) for high speed QAM signal over High Frequency(HF) channel.

By introducing 2-order balance algorithm to construct a pre-filter,two two-scale orthonormal multi-wavelets were given.

Under the condition of meeting resolution,the SAR real-time imager can satisfy the demands of the processing band by pre-filter and down-sample.

In this paper, a circuit structure for symbol synchronizing is proposed,which is based on Cubic Interpolate、Pre-filter and Gardner TED.

Space-time two-dimensional pre-filtering for clutter suppression in the phased array airborne radar;

The paper carried out the discussion on influence of four common-used processing modules (seismic wavelet phase minimization, pre-filtering, prestack deconvolution and poststack seismic wavelet zero-phasing) on phase character of seismic wavelet.

It is important to predict the productivity of wells accurately in the practice of exploiting of an oil field by means of prediction filter model (PEM) used in seismic exploration.

Inversive prediction filtering and operator extrapolation;

The prediction filtering method by least-square inversion in f-x-y domain has been put forward on the basis of detailed analysis for noise elimination using prediction filtering in f-x domain.

For the sake of improving S/N, we put forward anew method F-X domain prediction filtering in common offset gathers for noiseelimination using prediction.