Its only dif-ference to this latter one is that high S/N contents in mid frequency band are ex-trap0lated to obtain prediction operators of high and low frequency bands, by usingintertrace .

High-resolution processing methods applied to stacked seismic data are ad-vanced on the basis of signal analysis theory so that we can widen the effective seis-mic frequency band by high-frequency logging informations, compress and shape wavelets through deconvolution etc.

Based on the theory of parametric vibration, the concept of parametric resonance frequency band of the elevator rope is presented.

Research on Broadband Seismic Estimate MethodsFor Reservoir Cross Range;

Research and development of detection mill load on multi-band of mill Noise;

Effect of different flash intensity and bandwidth on record of oscillatory potentials in mouse;

Microstrip antennas bandwidth enhancement method is studied,and calcutation is made for the process by using finite-different time-domain(FDTD) method.

The paper theoretically demonstrates the feasibility of extracting weak useful signal from irregular noise, which is in high amplitude and broad bandwidth.

A Broadband Self-inverse 180° Phase Shifter;

Designing methods of broadband absorbing materials;

Designs of single layer broadband microstrip antennas using genetic algorithm;