The nullvalue problem of the ghost filter is automatically avoided.

Designing development and application of 110kV harmonic filter;

Fundamentals of harmonic filter for the transmitter of DX100A type

This paper describes the influence of high harmonic currents of large frequency converter device on power network and its restraining way,and presents the example of using harmonic filter to restrain high harmonic currents and its use results.

The current status and developing tendency for computer aided tuning of microwave filter is introduced briefly in the paper.

In recent years with the fast development of mobile communications, personal communications and the high integration of integrated circuits, microwave filter as one of the necessarily equipments in wireless communications systems, are becoming smaller and smaller.

Based on mode matching method, combined with microwave filter design theory, several low-pass, band-pass filters with different discontinuity structure, and a k band diplexer is designed.

This Paper gives a method for the design of notch filter.

The suspension system was then redesigned with a lower bandwidth including a notch filter to improve its partial frequency response and to eliminate the speed attenuation aroused by the electrostatic torque.

Design of integral biorthogonal wavelet filter for aviation image compression;

Adaptive wavelet filter bank construction based on lifting scheme;

A kind of lifting 9-7-tap wavelet filter for hardware implementation;